grabrez.purbrowse.exe.pendingoverwrite

GrabRez

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file grabrez.purbrowse.exe.pendingoverwrite by GrabRez has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
GrabRez  (signed and verified)

MD5:
269f88c33441e7d4d419173e6b2e8925

SHA-1:
1f6ec37a9eb63ba74d478ee4507d50c6919a0ea9

SHA-256:
b69d8376e2103d756870c3529e433f0a579a4227bada8c867e9bd3f00ba7fee4

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/25/2024 1:59:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.5

File size:
287.3 KB (294,168 bytes)

Common path:
C:\Program Files\grabrez\bin\grabrez.purbrowse.exe.pendingoverwrite

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 6:00:00 AM

Valid to:
11/28/2014 5:59:59 AM

Subject:
CN=GrabRez, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=GrabRez, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
63321F6F4FC45CBD2C4E1616655D18DB

File PE Metadata
Compilation timestamp:
9/10/2014 3:54:02 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
10.0

Entry address:
0x20DEE

Entry point:
E8, 45, 84, 00, 00, E9, 95, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 88, 34, 44, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 8C, 34, 44, 00, 5D, C3, 05, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8, 1B, C0, 23, C1, 83, C0, 08, 5D, C3, E8, F4, 51, 00, 00, 85, C0, 75, 06, B8, F0, 35, 44, 00, C3, 83, C0, 08, C3, E8, E1, 51, 00, 00, 85, C0, 75, 06, B8, F4, 35, 44, 00, C3, 83, C0, 0C, C3, 8B, FF, 55, 8B, EC, 56, E8, E2, FF, FF, FF, 8B, 4D, 08...
 
[+]

Entropy:
6.6033

Code size:
209 KB (214,016 bytes)

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