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4d39dc9c7fd55c545fdb1c43aa4356e5_287000.npb

Joomiweb

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file 4d39dc9c7fd55c545fdb1c43aa4356e5_287000.npb by Joomiweb has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Joomiweb  (signed and verified)

MD5:
4d39dc9c7fd55c545fdb1c43aa4356e5

SHA-1:
e098739a4f7bb123230422e39bccc371db52227e

SHA-256:
0830c8d5fcb1bf58c59e5124a78411af958d0a055c21decbde559721d2f7814d

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:
4/26/2024 12:11:08 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Joomiweb (M)
16.2.5.5

File size:
280.3 KB (287,000 bytes)

Common path:
C:\ProgramData\net protector\npbkp\4d39dc9c7fd55c545fdb1c43aa4356e5_287000.npb

Digital Signature
Signed by:
Joomiweb

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 5:30:00 AM

Valid to:
10/8/2014 5:29:59 AM

Subject:
CN=Joomiweb, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Joomiweb, 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:
35DBC6CAD8D4C87516D7F0D05A8891EA

File PE Metadata
Compilation timestamp:
2/8/2014 4:34:00 AM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows Console

Linker version:
10.0

CTPH (ssdeep):
6144:PTv11Hk5pY1tEZwbH4K5lkqq+hKTI/ed+u7YiTBAi0roUe:r11HniZ+51poJ7YiT2i0q

Entry address:
0x20030

Entry point:
48, 83, EC, 28, E8, 53, 77, 00, 00, 48, 83, C4, 28, E9, 76, FE, FF, FF, CC, CC, 48, 89, 5C, 24, 10, 48, 89, 7C, 24, 18, 55, 48, 8B, EC, 48, 83, EC, 60, 48, 8B, FA, 48, 8B, D9, 48, 8D, 4D, C0, 48, 8D, 15, 59, 06, 01, 00, 41, B8, 40, 00, 00, 00, E8, 8E, E4, FF, FF, 48, 8D, 55, 10, 48, 8B, CF, 48, 89, 5D, E8, 48, 89, 7D, F0, E8, 0E, 99, 00, 00, 4C, 8B, D8, 48, 89, 45, 10, 48, 89, 45, F8, 48, 85, FF, 74, 1B, F6, 07, 08, B9, 00, 40, 99, 01, 74, 05, 89, 4D, E0, EB, 0C, 8B, 45, E0, 4D, 85, DB, 0F, 44, C1, 89, 45...
 
[+]

Entropy:
6.3005

Code size:
185 KB (189,440 bytes)

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