rwsfark.exe

Berserk Group

Part of the Crossrider framework, a web browser extension that will deliver advertisements such as coupons, price-comparisons, display media, affiliate links, banners, popups/popunders and other links. The application rwsfark.exe by Berserk Group 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 Nullsoft Install System installer. It is built using the Crossrider cross-browser extension platform. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider.
Publisher:
Berserk Group  (signed and verified)

Version:
1.34.8.12

MD5:
81cec3698767772843711c58bd7fdd10

SHA-1:
7910bf3a422f8ecf0aa51692022d90a49e17e8b3

SHA-256:
aa781a42c157c23fa847dc4eff72cede3346a26a09c41e9e99301fd8fe7693ec

Scanner detections:
1 / 68

Status:
Adware

Explanation:
The software may change the browser's home page and search provider settings as well as display advertisements.

Analysis date:
5/25/2020 7:53:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Crossrider (M)
17.3.13.20

File size:
8.9 MB (9,337,288 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Nullsoft Install System

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\rwsfark.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/13/2014 9:00:00 PM

Valid to:
8/14/2015 8:59:59 PM

Subject:
CN=Berserk Group, O=Berserk Group, STREET=Athinodorou 3, STREET=Dasoupoli Strovolos, L=Nicosia, S=Nicosia, PostalCode=2025, C=CY

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

Serial number:
58761EBCDB730A1C637A95BCB768285A

File PE Metadata
Compilation timestamp:
12/4/2012 11:55:02 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.22

Entry address:
0x4323

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, FF, 15, 74, C3, 44, 00, C7, 04, 24, 01, 80, 00, 00, FF, 15, 58, C4, 44, 00, 53, C7, 04, 24, 00, 00, 00, 00, FF, 15, 98, C4, 44, 00, 56, A3, 40, 3B, 44, 00, C7, 04, 24, 08, 00, 00, 00, E8, 8D, 3B, 00, 00, A3, 9C, 3B, 44, 00, 8D, 85, 84, FE, FF, FF, 57, C7, 44, 24, 10, 00, 00, 00, 00, C7, 44, 24, 0C, 60, 01, 00, 00, 89, 44, 24, 08, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, 01, B3, 40, 00, FF, 15, AC, C4, 44, 00, 83, EC, 14, C7, 44, 24, 04, 02, B3, 40, 00, C7...
 
[+]

Code size:
34.5 KB (35,328 bytes)

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