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obw_istartsurf.exe

4146_obw_istartsurf

Fuyuan Zhou

The application obw_istartsurf.exe by Fuyuan Zhou has been detected as adware by 5 anti-malware scanners. This is a setup program which is used to install the application. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from d2drfrdurj6mvo.cloudfront.net.
Publisher:
7th  (signed by Fuyuan Zhou)

Product:
4146_obw_istartsurf

Description:
7th

Version:
7,0,0,2667

MD5:
6eebe2268dd9308596c843945b251f70

SHA-1:
02cfb2548726362fb735267b953d05715542f61b

SHA-256:
6cbbac7a4894e788c008ba10cb9b848697335475faef48e797b8257f8faa9c42

Scanner detections:
5 / 68

Status:
Adware

Analysis date:
11/1/2024 7:35:40 AM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.HfsAdware
1.3.0.6979

Dr.Web
Adware.Mutabaha.573
9.0.1.0236

herdProtect (fuzzy)
variant of 0qfdcmepqtg==1.exe (Adware)
2015.8.24.10

Malwarebytes
PUP.Optional.IStartSurf.A
v2015.07.23.12

Reason Heuristics
PUP.FuyuanZhou (M)
15.7.23.12

File size:
194.6 KB (199,264 bytes)

Product version:
7,0,0,2667

Copyright:
7th

Original file name:
7th

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\obw_istartsurf.exe

Digital Signature
Signed by:
Fuyuan Zhou

Authority:
DigiCert Inc

Valid from:
1/14/2015 7:30:00 PM

Valid to:
1/20/2016 7:30:00 AM

Subject:
CN=Fuyuan Zhou, O=Fuyuan Zhou, L=Jilin, S=Jilin, C=CN

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0933772030CFD7E6A3D0D1959D875688

File PE Metadata
Compilation timestamp:
7/20/2015 2:26:02 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:NqvjPfQ4gkgnA6j/7/+wWAF3xXiWerHSX:Nqna/bOhrHk

Entry address:
0x132E4

Entry point:
E8, 99, 56, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 20, 80, 42, 00, E8, 36, 13, 00, 00, E8, F9, 4B, 00, 00, 0F, B7, F0, 6A, 02, E8, 2C, 56, 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, 8C, 4A, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Code size:
117.5 KB (120,320 bytes)

The file obw_istartsurf.exe has been seen being distributed by the following URL.

http://d2drfrdurj6mvo.cloudfront.net/.../obw_istartsurf.exe

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