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chomper.exe

Yordan Damyanov

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application chomper.exe by Yordan Damyanov has been detected as adware by 13 anti-malware scanners. This is a setup program which is used to install the application. The file has been seen being downloaded from www.nansq.info and multiple other hosts.
Publisher:
Yordan Damyanov  (signed and verified)

MD5:
99c77cc27352fc470a983826cd1ab552

SHA-1:
3cb476cb7d4d103403cfb1616333654432420fc9

SHA-256:
1dcdc23ee001414235f5e5e9a6a91838e8c801f5aedd96791a3d8773115efdbc

Scanner detections:
13 / 68

Status:
Adware

Analysis date:
12/29/2024 1:21:02 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Trojan.Heur2.RP.XzXaaC2PX!oi
851

AhnLab V3 Security
PUP/Win32.Xema
2014.10.07

Avira AntiVirus
TR/Spy.1855737
7.11.176.250

Baidu Antivirus
Adware.Win32.Vonteera
4.0.3.14107

Bitdefender
Gen:Trojan.Heur2.RP.XzXaaC2PX!oi
1.0.20.1400

Emsisoft Anti-Malware
Gen:Trojan.Heur2.RP.XzXaaC2PX!oi
8.14.10.07.10

ESET NOD32
Win32/AdWare.Vonteera (variant)
8.10520

F-Secure
Gen:Trojan.Heur2.RP.XzXaaC2PX!oi
11.2014-07-10_3

G Data
Gen:Trojan.Heur2.RP.XzXaaC2PX!oi
14.10.24

IKARUS anti.virus
Trojan.SuspectCRC
t3scan.1.7.8.0

McAfee
Artemis!99C77CC27352
5600.6985

MicroWorld eScan
Gen:Trojan.Heur2.RP.XzXaaC2PX!oi
15.0.0.840

Reason Heuristics
PUP.YordanDamyanov.H
14.10.7.10

File size:
1.8 MB (1,856,584 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\content.ie5\x1mcfeh9\chomper.exe

Digital Signature
Signed by:
Yordan Damyanov

Authority:
COMODO CA Limited

Valid from:
10/7/2013 4:00:00 AM

Valid to:
10/8/2015 3:59:59 AM

Subject:
CN=Yordan Damyanov, O=Yordan Damyanov, STREET=19 Dobri Voinikov Str, L=Sofia, S=Sofia, PostalCode=1000, C=BG

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

Serial number:
00FEEF0D77D0AC7E55D4E7707B384AC901

File PE Metadata
Compilation timestamp:
10/3/2014 12:37:20 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:XkAyn4p89YmlebfQAvHqORr5XmOx0ZjUJMu5X6:XkA6r0fZrrx0ZIdK

Entry address:
0x13F8000

Entry point:
83, EC, 04, 50, 53, E8, 01, 00, 00, 00, CC, 58, 89, C3, 40, 2D, 00, E0, 13, 00, 2D, B3, D8, 7E, 05, 05, A8, D8, 7E, 05, 80, 3B, CC, 75, 19, C6, 03, 00, BB, 00, 10, 00, 00, 68, 3A, 4F, 43, 60, 68, 82, B2, 8D, 59, 53, 50, E8, 0A, 00, 00, 00, 83, C0, 00, 89, 44, 24, 08, 5B, 58, C3, 55, 89, E5, 50, 53, 51, 56, 8B, 75, 08, 8B, 4D, 0C, C1, E9, 02, 8B, 45, 10, 8B, 5D, 14, 85, C9, 74, 0A, 31, 06, 01, 1E, 83, C6, 04, 49, EB, F2, 5E, 59, 5B, 58, C9, C2, 10, 00, 51, FD, F7, 80, 54, CC, 97, 0B, 74, 84, 83, 23, 03, 10...
 
[+]

Entropy:
7.9710  (probably packed)

Code size:
160 KB (163,840 bytes)

The file chomper.exe has been seen being distributed by the following 3 URLs.

http://www.nansq.info/PmnB3H3O0WYDnWaw36YQ4VMeVsQcWVb8PAvoTWFVWrZb3/.../eby44.exe

http://www.colompia.info/ucX8p6w4iQapVfoHyWiWKYmGak/.../677ng.exe

https://s3.amazonaws.com/.../Chomper.exe

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