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combofix.exe

Vetaform Developments, s.l.

This belongs to a Solimba product that may be bundled with additional PUPs or may be part of an ad-supported software program. The application combofix.exe by Vetaform Developments, s.l has been detected as adware by 34 anti-malware scanners. The program is a setup application that uses the Solimba DownloadMR installer. It uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars. The file has been seen being downloaded from pt.win-install.info.
Publisher:
Vetaform Developments, s.l.  (signed and verified)

MD5:
e0b44057494572f87e8996cbfa88c0d4

SHA-1:
ef4d654b1bed3bd1280a0717045e6bb75a0f04df

SHA-256:
fb6a437fa391383745c2ccca03ffa6abbd2b8fc5349b483361fe2f686922f992

Scanner detections:
34 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/26/2024 6:07:03 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.Generic.12760932
716

Agnitum Outpost
PUA.Downloader
7.1.1

AhnLab V3 Security
PUP/Win32.Solimba
2015.02.06

Avira AntiVirus
APPL/Firseria.Gen
7.11.205.220

avast!
Win32:Morstar-M [PUP]
2014.9-150218

AVG
Adware BundleApp_r.AI
2014.0.4253

Baidu Antivirus
Adware.Win32.Solimba
4.0.3.15218

Bitdefender
Trojan.Generic.12760932
1.0.20.245

Clam AntiVirus
Win.Trojan.Morstar-60
0.98/20069

Comodo Security
Application.Win32.Firseria.GH
20888

Dr.Web
Trojan.DownLoader11.57090
9.0.1.05190

Emsisoft Anti-Malware
Trojan.Generic.12760932
8.15.02.18.05

ESET NOD32
MSIL/Solimba.AK.gen potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/Morstar
2/18/2015

F-Prot
W32/S-3d3adeac
v6.4.7.1.166

F-Secure
Trojan.Generic.12760932
11.2015-18-02_4

G Data
Trojan.Generic.12760932
15.2.25

IKARUS anti.virus
AdWare.BundleApp
t3scan.1.8.6.0

K7 AntiVirus
DoS-Trojan
13.193.14835

Kaspersky
not-a-virus:Downloader.Win32.Morstar
15.0.0.543

Malwarebytes
PUP.Optional.Firseria
v2015.01.30.09

McAfee
Trojan.Artemis!E7462CDF5929
5600.6850

MicroWorld eScan
Trojan.Generic.12760932
16.0.0.147

NANO AntiVirus
Trojan.Win32.Morstar.dmuxrd
0.30.0.65070

Norman
Solimba.ZMMR
11.20150218

nProtect
Trojan.Generic.12760932
15.02.06.01

Panda Antivirus
Trj/Genetic.gen
15.01.30.08

Qihoo 360 Security
HEUR/QVM10.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Solimba
15.2.18.17

Sophos
Generic PUA OL
4.98

Total Defense
Win32/Tnega.ZRdFDZD
37.0.11423

Vba32 AntiVirus
Downware.Morstar
3.12.26.3

VIPRE Antivirus
Threat.4758821
36694

Zillya! Antivirus
Downloader.Morstar.Win32.329
2.0.0.2054

File size:
519.1 KB (531,536 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

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

Digital Signature
Signed by:
Vetaform Developments, s.l.

Authority:
GlobalSign nv-sa

Valid from:
12/22/2014 7:37:59 AM

Valid to:
12/22/2016 7:37:59 AM

Subject:
CN="Vetaform Developments, s.l.", O="Vetaform Developments, s.l.", L=Badalona, C=ES

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
11214A840538566C60A8459CC4FF24F6A711

File PE Metadata
Compilation timestamp:
1/27/2015 6:42:47 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:U4/0L9HTEq0GeLd6QxJjP6qnCmHrfRxM7Vws:U4sBTZ0GeLcQxBPlHzRmCs

Entry address:
0xC6AC

Entry point:
E8, AC, 6C, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, C0, 4C, 42, 00, E8, FE, 15, 00, 00, E8, 7D, 6E, 00, 00, 0F, B7, F0, 6A, 02, E8, 3F, 6C, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 08, 65, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Code size:
107.5 KB (110,080 bytes)

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

http://pt.win-install.info/combofix/download/.../14241

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