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fh4536.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 fh4536.exe by Yordan Damyanov has been detected as adware by 23 anti-malware scanners. This is a setup program which is used to install the application. This is a trojan Bot that uses IRC to communicate with a comand and control network. The Trojan drops other malicious software and opens a backdoor on the infected computer and will run automatically on each boot.
Publisher:
Yordan Damyanov  (signed and verified)

MD5:
9e7c66fe9a6bb9754584e95bba455cc6

SHA-1:
9c83643a8376bbbc2902cea2eacb3bb4ba2e335c

SHA-256:
a241b805ebab3850c841d9cc441d041c00319f37c72d55620a649b0b970242b2

Scanner detections:
23 / 68

Status:
Adware

Explanation:
Part of a backdoor IRC bot network.

Analysis date:
11/16/2024 2:30:43 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.GenericKD.1957092
752

Avira AntiVirus
TR/Agent.1450568
7.11.185.150

avast!
Win32:Adware-gen [Adw]
2014.9-150113

Baidu Antivirus
Adware.Win32.Vonteera
4.0.3.15113

Bitdefender
Trojan.GenericKD.1957092
1.0.20.65

Comodo Security
ApplicUnwnt
20077

Emsisoft Anti-Malware
Trojan.GenericKD.1957092
8.15.01.13.08

ESET NOD32
Win32/AdWare.Vonteera (variant)
9.10723

Fortinet FortiGate
W32/Adond.K!tr
1/13/2015

F-Secure
Trojan.GenericKD.1957092
11.2015-13-01_3

G Data
Trojan.GenericKD.1957092
15.1.24

K7 AntiVirus
Adware
13.185.14007

Kaspersky
Trojan.Win32.Adond
14.0.0.2646

McAfee
Artemis!9E7C66FE9A6B
5600.6886

MicroWorld eScan
Trojan.GenericKD.1957092
16.0.0.39

nProtect
Trojan.GenericKD.1957092
14.11.14.01

Panda Antivirus
Trj/CI.A
15.01.13.08

Quick Heal
Trojan.Adond.g6
1.15.14.00

Reason Heuristics
PUP.YordanDamyanov.G
15.1.13.20

Sophos
Vonteera
4.98

Trend Micro House Call
Suspicious_GEN.F47V1110
7.2.13

Vba32 AntiVirus
Trojan.Adond
3.12.26.3

VIPRE Antivirus
Backdoor.Win32.Ircbot.gen
34782

File size:
1.4 MB (1,450,568 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\temp\fh4536.exe

Digital Signature
Signed by:
Yordan Damyanov

Authority:
COMODO CA Limited

Valid from:
10/7/2013 3:00:00 AM

Valid to:
10/8/2015 2:59:59 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:
11/3/2014 12:38:36 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:NN4NZV4g1azeN1nP7+NG02n7jKcfHgS9+F/Oxr30bAr8nmeQ9Ew/t5nVjP:f4T3N1Y123bHcGZ3siTV

Entry address:
0x12C1000

Entry point:
56, 50, 53, E8, 01, 00, 00, 00, CC, 58, 89, C3, 40, 2D, 00, E0, 0D, 00, 2D, E0, C5, 97, 05, 05, D7, C5, 97, 05, 80, 3B, CC, 75, 19, C6, 03, 00, BB, 00, 10, 00, 00, 68, 28, B7, AC, 1B, 68, 95, D2, 8E, 55, 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, DD, 46, 3C, BB, 39, FD, C6, 1B, 8C, 47, 70, 8B, DC, 92, 00, 58...
 
[+]

Entropy:
7.9609  (probably packed)

Code size:
169.5 KB (173,568 bytes)

The file fh4536.exe has been seen being distributed by the following 3 URLs.

http://www.dolfine.info/.../b3cd6195d.exe

http://www.dolfine.info/.../9ec32a6c24.exe

http://www.dolfine.info/.../1a508351.exe

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