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o2fbayukah.exe

1821_exp_webssearches

Ma Lin

The application o2fbayukah.exe by Ma Lin 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 the user's temporary directory.
Publisher:
One Syn  (signed by Ma Lin)

Product:
1821_exp_webssearches

Description:
Syn worker

Version:
6.2.7601.1240

MD5:
207264bb5e8d3eddbb295918dee532bf

SHA-1:
cdb79109c5be2894dbed5f048cb983574e9a7217

SHA-256:
86dba0dddd5617b41ef9d1f6d8a3144a68f9cd53c46232a9c1e04145ef18e92e

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:
11/23/2024 10:45:34 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX.MaLin (M)
16.4.29.10

File size:
567.6 KB (581,200 bytes)

Product version:
6.2.7601.1240

Copyright:
One Syn

Original file name:
Worker.exe

File type:
Executable application (Win32 EXE)

Language:
English (United Kingdom)

Common path:
C:\users\{user}\appdata\local\temp\o2fbayukah.exe

Digital Signature
Signed by:
Ma Lin

Authority:
WoSign CA Limited

Valid from:
8/19/2014 9:22:46 PM

Valid to:
7/19/2015 9:22:46 PM

Subject:
CN=Ma Lin, E=chloezhangling@163.com, L=北京市, S=北京市, C=CN

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

Serial number:
760E23ABF26CF75AE5C944881CCA6DA7

File PE Metadata
Compilation timestamp:
11/6/2014 1:47:39 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:/te0VrD8CrKkevgtxZzkSYRoEXumG4N/SKUgG3TXp6s/69Ib4V:17VHNB+Xf/N/oTZ6s/6eb4V

Entry address:
0x40115

Entry point:
E8, D7, F0, 00, 00, E9, 7F, FE, FF, FF, CC, 83, 3D, 6C, 32, 48, 00, 00, 0F, 84, 55, F2, 00, 00, 83, EC, 08, 0F, AE, 5C, 24, 04, 8B, 44, 24, 04, 25, 80, 7F, 00, 00, 3D, 80, 1F, 00, 00, 75, 0F, D9, 3C, 24, 66, 8B, 04, 24, 66, 83, E0, 7F, 66, 83, F8, 7F, 8D, 64, 24, 08, 0F, 85, 24, F2, 00, 00, EB, 00, F3, 0F, 7E, 44, 24, 04, 66, 0F, 28, 15, 20, 2F, 46, 00, 66, 0F, 28, D8, 66, 0F, 28, C8, 66, 0F, 28, E0, 66, 0F, 28, F0, 66, 0F, 73, F0, 01, 66, 0F, 73, D0, 35, 66, 0F, 73, D3, 34, 66, 0F, 54, 25, 30, 2F, 46, 00...
 
[+]

Entropy:
6.1317

Code size:
383.5 KB (392,704 bytes)

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