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busuu.dll

Tan Qilin

The module busuu.dll by Tan Qilin has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Tan Qilin  (signed and verified)

Version:
1.0.0.0

MD5:
74c98c8d6dacf174d397272fc370935a

SHA-1:
08500989878b76ce7d0138377af2cf085fcdc512

SHA-256:
fcf4321a5504df65a0cee8c3e7782df4366b5e2be98903a92e8da30f8285202b

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 3:36:14 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.9.6.9

File size:
127 KB (130,088 bytes)

File type:
Dynamic link library (Win32 DLL)

Language:
Chinese (Simplified, PRC)

Common path:
C:\Program Files\zhainan\busuu.dll

Digital Signature
Signed by:
Tan Qilin

Authority:
WoSign CA Limited

Valid from:
5/28/2014 2:07:02 PM

Valid to:
5/28/2015 2:07:02 PM

Subject:
CN=Tan Qilin, E=1367024804@qq.com, L=资阳市, S=四川省, C=CN

Issuer:
CN=WoSign Class 2 Code Signing CA, O=WoSign CA Limited, C=CN

Serial number:
07069DFE674402DA3B481D6E2AD40FDE

File PE Metadata
Compilation timestamp:
6/20/1992 6:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
3072:0GD0Z/SoN6VypOivWX/8f/S/4GKG1momH6mID:v0dxN6VypzeQImoF

Entry address:
0x18E08

Entry point:
55, 8B, EC, 83, C4, BC, 33, C0, 89, 45, C0, 89, 45, BC, B8, 68, 8D, 41, 00, E8, 84, CE, FE, FF, 33, C0, 55, 68, 81, 8E, 41, 00, 64, FF, 30, 64, 89, 20, 8D, 55, BC, 33, C0, E8, 98, 9E, FE, FF, 8B, 45, BC, 8D, 55, C0, E8, E1, E6, FE, FF, 8B, 55, C0, B8, 90, B8, 41, 00, E8, 00, B1, FE, FF, A1, 90, B8, 41, 00, BA, 98, 8E, 41, 00, E8, 85, B4, FE, FF, 75, 05, E8, 72, FD, FF, FF, 33, C0, 5A, 59, 59, 64, 89, 10, 68, 88, 8E, 41, 00, 8D, 45, BC, BA, 02, 00, 00, 00, E8, A0, B0, FE, FF, C3, E9, EE, A9, FE, FF, EB, EB...
 
[+]

Entropy:
6.5617

Developed / compiled with:
Microsoft Visual C++

Code size:
96 KB (98,304 bytes)

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