039f983c_5d8_crypt_io_copy.tmp

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file 039f983c_5d8_crypt_io_copy.tmp by ClearThink has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
ClearThink  (signed and verified)

MD5:
f845dcdcef2cfc1c1674e7a740418a51

SHA-1:
bb8ed97e190d29fd7f76da0d612ae8e3de61518a

SHA-256:
f4d2be8ab323dd5c07ba15ec846e4a698c2bd2c40751addac3c141b31a33497a

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:
4/18/2024 6:05:28 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.4.12

File size:
388.7 KB (398,064 bytes)

Common path:
C:\ProgramData\kaspersky lab\avp13\temp\crypt\039f983c_5d8_crypt_io_copy.tmp

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
8/4/2014 6:00:00 PM

Valid to:
8/5/2015 5:59:59 PM

Subject:
CN=ClearThink, O=ClearThink, L=Santa Monica, 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:
1200063ED04B1DA36F7FE204B3DD8617

File PE Metadata
Compilation timestamp:
9/25/2014 12:14:08 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x1A2DA

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, F5, 61, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 40, D4, 05, 10, 89, 0D, 3C, D4, 05, 10, 89, 15, 38, D4, 05, 10, 89, 1D, 34, D4, 05, 10, 89, 35, 30, D4, 05, 10, 89, 3D, 2C, D4, 05, 10, 66, 8C, 15, 58, D4, 05, 10, 66, 8C, 0D, 4C, D4, 05, 10, 66, 8C, 1D, 28, D4, 05, 10, 66, 8C, 05, 24, D4, 05, 10, 66, 8C, 25, 20, D4, 05, 10, 66, 8C, 2D, 1C, D4, 05, 10, 9C, 8F, 05, 50, D4...
 
[+]

Entropy:
4.9091

Code size:
174 KB (178,176 bytes)

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