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los nukak maku.3gp.exe

Stepan Rybin

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application los nukak maku.3gp.exe by Stepan Rybin has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup program which is used to install the application. The file has been seen being downloaded from skipperham.info.
Publisher:
Stepan Rybin  (signed and verified)

MD5:
462129a9612bb86ac847498fa676b24f

SHA-1:
7f268b43ae8681e239a711693856f9d910f65f3d

SHA-256:
0ee52d30ad51b4efc3ca2f1fbc279fee5240015a7988d8bad08ed3e4bb7342ce

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:
8/15/2025 10:50:13 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.StepanRy (M)
16.5.27.7

File size:
1 MB (1,066,696 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\los nukak maku.3gp.exe

Digital Signature
Signed by:
Stepan Rybin

Authority:
Unizeto Technologies S.A.

Valid from:
6/27/2014 3:37:40 AM

Valid to:
6/27/2015 3:37:40 AM

Subject:
E=rybin.step@yandex.ru, CN=Stepan Rybin, O=Stepan Rybin, C=UA

Issuer:
CN=Certum Code Signing CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
47154C2151E9EB8DFA42C2C9E45BFC6C

File PE Metadata
Compilation timestamp:
4/5/2012 5:31:46 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:XWG2PGSXAIPFBvhWQ1coQc2MJq0WtfgWi8Pst6oF:XtGVPFBvh/1DFyiR6w

Entry address:
0x1B59C

Entry point:
E8, 8B, 36, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 60, 05, 46, 00, E8, BE, 0E, 00, 00, E8, 58, 38, 00, 00, 0F, B7, F0, 6A, 02, E8, 1E, 36, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 2B, 07, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Code size:
363 KB (371,712 bytes)

The file los nukak maku.3gp.exe has been seen being distributed by the following URL.

http://skipperham.info/v2921?self_redirect=0&product_name=Los Nukak Maku.3gp&filesize=1mb&product_title=Los Nukak Maku.3gp&installer_file_name=Los Nukak Maku.3gp&product_file_name=Los Nukak Maku.3gp&product_download_url=https://r6---sn-p5qlsnsk.googlevideo.com/.../3gpp&signature=9AB4AC1539A98C96B7F9EBC1B7DF7EB88E38EFB2.538C2E61DE0C91D4E2B4EEB10237CF343422D062&ip=2001:41d0:2:25b1:4ade:c24a:62d8:2c7e&ratebypass=yes&&title=Los Nukak Maku

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