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yosetup.exe

RepkaSoft

The application yosetup.exe by RepkaSoft has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from gsf-cf.softonic.com and multiple other hosts.
Publisher:
RepkaSoft  (signed and verified)

MD5:
0d219cb1816f364c097b3c8d4826fae6

SHA-1:
1c22ea858b6deb097642e60a361b5a555636a696

SHA-256:
a17c43d590c95e0f36c40d3b1631c5908e3881499d44ec5cab0940136c813037

Scanner detections:
3 / 68

Status:
Potentially unwanted

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
4/25/2024 3:33:47 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/OpenCandy
8.9249

Malwarebytes
PUP.Optional.OpenCandy
v2014.01.10.06

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.14108

File size:
10.8 MB (11,283,888 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\yosetup.exe

Digital Signature
Signed by:
RepkaSoft

Authority:
VeriSign, Inc.

Valid from:
10/28/2012 8:00:00 PM

Valid to:
10/29/2013 7:59:59 PM

Subject:
CN=RepkaSoft, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=RepkaSoft, L=Saint-Petersburg, S=Russian Federation, C=RU

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
31CB753697DB3EF2FDFB9971383D9449

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
196608:vE0z4qTK1nIsoHQMvVM0QM8/8bJd0ky0Xqj3nAPlDX8tRwnWa2+4KDCAWL7JXXaF:vlKmsIQt1MdbzkQNjiMOfVXakfU

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.9982

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file yosetup.exe has been seen being distributed by the following 15 URLs.

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1448952804&Signature=DReuhN6uxwAOf-H74RtH9EIYMnFgFRNyxNNlZ3SDYv2pj3KeYcoodzOeiG2ONc-f9AepaOTJ8pfBbIaqBD2nZ1aY0ZcHtbE3oZIl3gcKqtab5HcdTRbXeH36E42Ik-eFjVjw9yOZN83NOUsKFM4Si6s6z1wjTh1nkFzsCUvWPgc_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1440048196&Signature=TRZGNslJP2YFfciIVmnSkzFjDQG3~u1AkZAU6TqWMP6n2Kr~6ixJgAwqdZrIEKWiot73FTeOyJCpTGjx9oppOnZGdtq5gL6R7-X2TDyxWYlPu34i5dZ7iEtZ9wB29qdlKdTM08UwTMrNSsBOz4r9isQzYsTBWc9WqR1vUCNRWPw_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1429502851&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&Signature=iq7HmfRoAQN~TtlN1C1jRCcSIKk-R6mY8Kn1lPNeUl3b7qxWVy0wylQgUa2bbxXvRdB5vSQIxq91sTtY38AazVwf9paCdejYeoivuZN8IjSlwl0hewg1-dTnRwDVbaXzLolCJLwG7KmZG3-MJzh~sWJ3WnWzkCsGu2yPfMaBRy8_&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1453611917&Signature=PRYjUFvQVGI-nIM36kXpyCaeApnoGdpClBvmvs8uZs1f2m1FZbz0xDSL2qP8rUDQ16gfJAatEh7rr7qk7y37tpHBRs6coxjKekMX5TVeMlbaKN2xXVnBnnnGKmABfIGVKvbvZ9dPxUWCyefVhQMOYzvikpgQrVr7KQa9-7zRpb8_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1439348682&Signature=RYAcVa8WTnEzHhjVt1AfNtRdy2D1qH3NK06kV-d2Ahq1-jNwfZLbL1tF2D4OO8bEXvsDtx19cQVopjOuhmTMMWVoDaMOMczQ1nzEpxWOl3od7cO4pJDmBKq0dr8jjxcFZLH3ymcuWSaMb8wrdB9dXEiA5orELf-MDSIawUtsts4_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1448759157&Signature=iMCJ94uL4Vv0lSEv03T-FgTBLXdlWM8HBkIH7UDUHA0Q06uSJJlqAVLTGvpOyMOovv0CHGdKk5ZA77tEeaD0saEM8eb2FcX~KsJyzECCxry1Q0LllbeFhgvFzLe-EoS4boJJ2Atzvac9tKR601eWOzWOfZnFKE92L0jGPOr6vV4_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1454645836&Signature=ZOGiOlkV4jdFKbjjZXed-JCMJvrJv5JQdpPqmxtzmRltx4my~1SvOO5WONaNE7zPku-gLp5IG6Cu9RLa4eeh8qcmnfGZkKKRxJ7CTaIMXzlBsvyLobombEHMwD-SPmt1rzBTGsN7~-PngV0CSxtvWXW-YSKOAJeDLuOtPnB7daY_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1435785455&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&Signature=gIl2tCzgC3w1sC3KeeKbUM2-NiU9ZfyDYM~NQ~ReS6worXnWD2YZquVZUTVS7wzZ9ae49s8NyR~kgUzC8Icbn7NAVdUOebqzWtZpNzF4Dxx8Sc~Mr~Si2051VSu9v3x5Aq068YO0qomdmn04GCV4k1Ez1NQEWK~~vzWCIgr7-uQ_&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_br&type=PROGRAM&Expires=1457833658&Signature=hQQJsMTKQXqr-4uaAK4ZcXwgo85h9QbZeqL6PNLORX33jW~ftvB4avb2EBsmpQE5T5kjMoWr1qjr97ttKUrW3i8qL3ZjJJhrNEtPDw2cH5f4vlTCpKqza~ardLKFQdLs0aCqF3chTadXftoxzBEAgIIVedyDCP53Fcw7Ovcte6w_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1431047594&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&Signature=DyQmg8XBIfgfT-eLkITnLAs~lVOKzAiMHxjw-iLAH3hNCQMXqUaJq1HXjDuJCozYx7eVd4r7kgB3fAb28N8HJY7gtbEM6Tp94NwRb8VjsTpUqzj3w3ASNZymnXP3GtuB6yNXV1PnJFsY1nEX50HBagdbY78IASB0B6kE4qetZbY_&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_pl&type=PROGRAM&Expires=1452191851&Signature=UpaJ0k0aNjZ2uVI35zfZQpgKnZHJMRt-K3vRYywZx2LG9QYxlbg9HGT6Vu4QmCa4X3S-vNQNOpVQcOA9wDd0CmNEahk3VJn3k~la~TbSaSHFzPGin4ga~LCVFiL5ZwFyOuR7PlTwF3e3pMhha8-oMGq~439pkEpMso581bAl6C0_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_en&type=PROGRAM&Expires=1455867047&Signature=dxUy1CqBGyhle-fI7KnwhKzlPb97My-ay2G7fchO9fdypCeSUpbb1trbh2ETqCNBeJ071CsRTUk~peIyA9J9-a4fDflZoTXZtONGaOexL0Lmn05qpA1BwCqTSW8rWeXTWpkG9dMTuoVfbzLliJVLdeRQo~NIJbKxFkkC1oa2U8Y_&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&filename=yosetup.exe

http://gsf-cf.softonic.com/1c2/2ea/.../file?SD_used=0&channel=WEB&fdh=no&id_file=89545&instance=softonic_en&type=PROGRAM&Expires=1435811874&Key-Pair-Id=APKAJUA62FNWTI37JTGQ&Signature=RZpBt0Sgs52hKzTRKBp4KMphETHfPFEmPrbO5feHxp2OKCoQIWKnES7nISCFCvjdPPnInoUaehbDUPE4ky-xvaohClqtNNE7QN-0Wm0fOrSC1QSjRq-WVY4t0zKtKspY~oWTk45MECi9FXa2YDCQJGKrR~ojLKhtQBB1q7uDV~c_&filename=yosetup.exe

http://yowindow.com/.../yosetup.exe

http://software-files-a.cnet.com/s/software/13/10/65/.../yosetup.exe

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