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download.exe

Stas Kosmov

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application download.exe, “Installer for Application fields Software” by Stas Kosmov has been detected as adware by 30 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
Application fields Software  (signed by Stas Kosmov)

Product:
Application fields Software

Description:
Installer for Application fields Software

Version:
2014.6.2.1205

MD5:
f1144cc34e4b452be6dcb9cd50af4a2f

SHA-1:
d2d9a5e2c98a7c164fa3571eb7143f6f9ecc567c

SHA-256:
2b285cdc02cc5f58e5f6228a82fbacbbcd336b75f54cf85c4fc78a9fc76eb5d2

Scanner detections:
30 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/20/2024 1:37:13 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.Generic.11453420
800

Agnitum Outpost
Trojan.AntiFW
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.11.27

Avira AntiVirus
TR/Visucius.20
7.11.189.28

avast!
Win32:InstalleRex-BX [PUP]
141119-1

AVG
Generic
2015.0.3278

Bitdefender
Trojan.Generic.11453420
1.0.20.1650

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.4959

Comodo Security
Application.Win32.InstalleRex.KG
20202

Dr.Web
Trojan.WebPick.2627
9.0.1.05190

Emsisoft Anti-Malware
Trojan.Generic.11453420
9.0.0.4570

ESET NOD32
Win32/InstalleRex.M potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/Generic.AC.4161048
11/26/2014

F-Secure
Trojan.Generic.11453420
11.2014-26-11_4

G Data
Trojan.Generic.11453420
14.11.24

K7 AntiVirus
Unwanted-Program
13.186.14150

Kaspersky
Trojan.Win32.AntiFW
15.0.0.543

Malwarebytes
PUP.Optional.InstalleRex
v2014.11.26.11

McAfee
PUP-FHQ
5600.6934

MicroWorld eScan
Trojan.Generic.11453420
15.0.0.990

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.6.63726

nProtect
Trojan/W32.AntiFW.322576
14.11.26.01

Panda Antivirus
PUP/TSUploader
14.11.26.11

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.A5
11.14.14.00

Reason Heuristics
Adware.WebPick.Installer.I
14.11.26.10

Sophos
InstallRex
4.98

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.4150696
35088

Zillya! Antivirus
Trojan.AntiFW.Win32.250
2.0.0.1994

File size:
315 KB (322,576 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 Application fields Software

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Digital Signature
Signed by:
Stas Kosmov

Authority:
COMODO CA Limited

Valid from:
9/24/2013 2:00:00 AM

Valid to:
9/25/2014 1:59:59 AM

Subject:
CN=Stas Kosmov, O=Stas Kosmov, STREET=Levitana 21, L=Kiev, S=Kiev, PostalCode=03083, C=UA

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

Serial number:
7A2834207C5588F506D3CF09661E12F2

File PE Metadata
Compilation timestamp:
3/12/2013 9:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:hrYbUzkuvcBYC47l2xSHyxdphxUIdRyZBBMX9v9y8DBMPf:hrdkuveY354dH3diBMX9v9N4

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Entropy:
7.9551

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file download.exe has been seen being distributed by the following URL.

http://applicationgrabb.net/.../Download.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=14168228&publisher_id=416&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=42504684&external_id=0&session_id=85009368&hardware_id=99177596&installer_file_name=download

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