thug_matrimony_downloader.exe

Escolade Solutions LTD.

This adware is a web browser extension that will inject advertising in the browser in the form of unwanted banners and text-links which may link to malware sites and install unwanted software. The application thug_matrimony_downloader.exe by Escolade Solutions has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from www.freefilesdownloader.com. It is part of the Brightcircle group of web-extensions that inject advertisements in the browser.
Publisher:
Escolade Solutions LTD.  (signed and verified)

Description:
iPumper

Version:
1.0.0.2

MD5:
5557b7945f8af0da12597905e2dfe7c8

SHA-1:
858ca0dc4a484dc471ef0c9b06746a4d1f52b6ac

SHA-256:
d5db890abe99367fab6337831393f9f9088b2a3b6fdc4f3a06cfc50c50243244

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.

Analysis date:
4/26/2024 2:17:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Brightcircle.Escolade (M)
16.4.16.19

File size:
4.7 MB (4,879,304 bytes)

Product version:
0.0.0.0

Original file name:
xyzSoMYpB.lnk_p

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\thug_matrimony_downloader.exe

Digital Signature
Authority:
COMODO CA Limited

Valid from:
9/24/2012 5:00:00 PM

Valid to:
9/25/2013 4:59:59 PM

Subject:
CN=Escolade Solutions LTD., O=Escolade Solutions LTD., STREET=Akademica Vernadskogo blvd. 36-507, L=Kiev, S=Kiev, PostalCode=03451, C=UA

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

Serial number:
0FB283CB6EEA8D0204BFA51C4BCE925C

File PE Metadata
Compilation timestamp:
8/29/2013 1:40:33 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
98304:vR6dh7HPCFVAlayqp2hFC6NlyRLDqKHoZkWqtaeCO928lJ/G:vIzzCFVua3IhFC6yRCAImtaeDTJ/G

Entry address:
0x43420

Entry point:
E8, D4, 9D, 00, 00, E9, 89, FE, FF, FF, 57, 8B, C6, 83, E0, 0F, 85, C0, 0F, 85, C1, 00, 00, 00, 8B, D1, 83, E1, 7F, C1, EA, 07, 74, 65, EB, 06, 8D, 9B, 00, 00, 00, 00, 66, 0F, 6F, 06, 66, 0F, 6F, 4E, 10, 66, 0F, 6F, 56, 20, 66, 0F, 6F, 5E, 30, 66, 0F, 7F, 07, 66, 0F, 7F, 4F, 10, 66, 0F, 7F, 57, 20, 66, 0F, 7F, 5F, 30, 66, 0F, 6F, 66, 40, 66, 0F, 6F, 6E, 50, 66, 0F, 6F, 76, 60, 66, 0F, 6F, 7E, 70, 66, 0F, 7F, 67, 40, 66, 0F, 7F, 6F, 50, 66, 0F, 7F, 77, 60, 66, 0F, 7F, 7F, 70, 8D, B6, 80, 00, 00, 00, 8D, BF...
 
[+]

Entropy:
6.8310

Code size:
402.5 KB (412,160 bytes)

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

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