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maintainer.bak

HulaToo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file maintainer.bak by HulaToo has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address ip-184-168-221-64.ip.secureserver.net on port 443.
Publisher:
HulaToo  (signed and verified)

Version:
1.0.5642.24304

MD5:
3d0019f3117cee6460c4dede755b1ca9

SHA-1:
2f6f5d54c865f4eaa3ba643c28e5799959fa8077

SHA-256:
07d2ee3f9483960d30ffab47c703f96b6fc73e5c3c65bf9f96ac03d5a4a6379f

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:
12/27/2024 4:58:06 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.HulaToo (M)
16.5.24.21

File size:
125.2 KB (128,240 bytes)

Product version:
1.0.5642.24304

Language:
English (United States)

Common path:
C:\ProgramData\46a7822e-e081-4280-9f6b-e4649130bea1\maintainer.bak

Digital Signature
Signed by:
HulaToo

Authority:
VeriSign, Inc.

Valid from:
3/16/2015 7:00:00 AM

Valid to:
4/15/2016 6:59:59 AM

Subject:
CN=HulaToo, O=HulaToo, 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:
085C145DCAAAEB713C3C6B3E2BFDBFE3

File PE Metadata
Compilation timestamp:
6/14/2015 3:30:14 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:iD1Ll2ZpujSiZF4gysym2UG0IHhxDOudVB:iBVDFHlKuufB

Entry address:
0x9872

Entry point:
E8, 75, 62, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, C2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 59, 50, 00, 00, 59, 83, A5, E0, FC, FF, FF, 00, 6A, 4C, 8D, 85, E4, FC, FF, FF, 6A, 00, 50, E8, 7A, F3, FF, FF, 8D, 85, E0, FC, FF, FF, 89, 85, D8, FC, FF, FF, 8D, 85, 30, FD, FF, FF, 83, C4, 0C, 89, 85, DC, FC, FF, FF, 89, 85, E0, FD, FF, FF, 89, 8D, DC, FD, FF, FF, 89, 95, D8, FD, FF, FF, 89, 9D, D4, FD, FF, FF, 89, B5, D0, FD, FF, FF, 89, BD, CC...
 
[+]

Code size:
72.5 KB (74,240 bytes)

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP SSL):
Connects to ip-184-168-221-64.ip.secureserver.net  (184.168.221.64:443)

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