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browser_install_81.dll

Zhiming Yuan

The module browser_install_81.dll by Zhiming Yuan has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The file has been seen being downloaded from img.rafomedia.com.
Publisher:
Zhiming Yuan  (signed and verified)

MD5:
b55214e256014578b4cec3c95d9cfe6e

SHA-1:
af023e6dc93ce64d1aadf8db688fd5f5c0c8c95f

SHA-256:
42768503ef592d75b7e063f8bf2122c43d89393e6707a65e628e425883a4a779

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/16/2024 12:51:41 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Mutahabah (M)
16.9.21.18

File size:
572.9 KB (586,600 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\browser_install_81.dll

Digital Signature
Signed by:
Zhiming Yuan

Authority:
thawte, Inc.

Valid from:
8/1/2016 2:00:00 AM

Valid to:
6/14/2017 1:59:59 AM

Subject:
CN=Zhiming Yuan, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

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

Serial number:
60C5A896510799E16988694128DC9301

File PE Metadata
Compilation timestamp:
8/1/2016 1:33:44 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
12288:0syV6Fv7A0lgBOq6Is95Y2rPzXMiHFzJlxKXWFjRvNpNiXG0/n/LXOSr:GV6JAwgBOq2lPomXxKGFNvTN6GA/7OSr

Entry address:
0x1686A

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, E2, 05, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, B1, FE, FF, FF, 83, C4, 0C, 5D, C2, 0C, 00, 55, 8B, EC, 6A, 00, FF, 15, 4C, 21, 03, 10, FF, 75, 08, FF, 15, 48, 21, 03, 10, 68, 09, 04, 00, C0, FF, 15, 20, 20, 03, 10, 50, FF, 15, 50, 21, 03, 10, 5D, C3, 55, 8B, EC, 81, EC, 24, 03, 00, 00, 6A, 17, E8, 7F, 93, 01, 00, 85, C0, 74, 05, 6A, 02, 59, CD, 29, A3, 90, 13, 04, 10, 89, 0D, 8C, 13, 04, 10, 89, 15, 88, 13, 04, 10, 89, 1D, 84, 13, 04, 10, 89, 35, 80, 13, 04...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
196 KB (200,704 bytes)

The file browser_install_81.dll has been seen being distributed by the following URL.

http://img.rafomedia.com/gour/.../browser_install_81.dll

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