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vroot.exe

MARI Mara

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application vroot.exe by MARI Mara 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 file has been seen being downloaded from get.spot0102.info.
Publisher:
MARI Mara  (signed and verified)

MD5:
aab0072bccd22116d3b0fa6abae99c66

SHA-1:
6fb64daa0dfb592319913dcff8837e44432d20f5

SHA-256:
286de48a8b4afacd625c747e074bc197cc28a424e12c67dff3dae93ecc4ac153

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 is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/21/2024 4:33:31 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.MARIMara.Bundler (M)
16.6.7.23

File size:
575.6 KB (589,424 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
MARI Mara

Authority:
thawte, Inc.

Valid from:
1/9/2015 5:30:00 AM

Valid to:
12/18/2015 5:29:59 AM

Subject:
CN=MARI Mara, O=MARI Mara, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
7792B09FBA739BDBD98A9B14D63739DE

File PE Metadata
Compilation timestamp:
12/6/2009 4:20:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:DmqM2qRreQ2BUzxuO0GyTqHTxDChwcJkpg4O0Bza0uUT/GXqYBcp:D1+eQ2BUlugygTxQwyogJKzaUz20

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...
 
[+]

Entropy:
7.9676

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.spot0102.info/.../get18?p=2329&d=18256&l=17401&n=1&filename=Vroot

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