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install-flashplayer.exe

OUTBROWSE

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application install-flashplayer.exe by OUTBROWSE has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. The installer is marketed through download protals and search ads as the free Adobe Flash Player but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
6f315aef1f874484c42988e96d8f74a7

SHA-1:
7ca85a5cfe344d808b5032e9b17aad0609dd579a

SHA-256:
fba5cfe7e0a17aef5fd44e0920bec4c3e77410f1e6b7dd2812ed7d972c05c7a4

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/26/2024 8:05:43 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.8.8.10

File size:
968.6 KB (991,896 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Common path:
C:\users\{user}\downloads\install-flashplayer.exe

Digital Signature
Signed by:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/7/2014 3:00:00 AM

Valid to:
4/8/2015 2:59:59 AM

Subject:
CN=OUTBROWSE, O=OUTBROWSE, STREET=Bialik Number: 143, L=Ramat Gan, S=Israel, PostalCode=5252337, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00A5F03C3A375C11FD6C1C160EE8BFF923

File PE Metadata
Compilation timestamp:
12/6/2009 12:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:hvtbtfFcicu9/AGdSHlXEYprdDJ5Qk7I/Oylc8Cnr1G:t79Iu9/9dSHlXECrBJ5r7Ibl7or4

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file install-flashplayer.exe has been seen being distributed by the following URL.

http://mbttd.com/engine/.../c1c3VwcGx5X3BsYXRmb3JtX2FjY291bnRfaWQ9NDA1JnN1cHBseV9wbGF0Zm9ybV9pZD00NzUmbGluZV9pdGVtX2lkPTc1NzQ?ext_click_id=sQoTCym3IezBe__wobz5YFBnuTeAos1-YKOvwmMMHN-U_aLqlJwZEKry6-z0WaPDL2urxA2K_LIZ8byvF6qFnITQsYm5-wp4o1PBGDzvagcTzM3DDrAOSrhIcHRjUaVxzBgLz_SqJKoL59ff6nR84yQqkq0EuKshBVEEbK2hZPcckKYqKAEA35Z6setH36RMZXFVv4-X5vbiBeRAKn43mlR3NqrSEtbf_lO95DWG1wCaU-pwn1NgPLUwm3NeCcrRIURS7cQ-xe6vjHZEtI7t104vrrCd-OZuU2HWdcox3ZN9_Pa6EGk-VUsl6AuVyUoSihPzMc4kmW60ENTKnSQkgg-Kf0H0BdqLoB3O-qam32OpDtZBWf3AfSF-19VJ4O9Jnw

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