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aff_setup.exe

PC Backup Software Limited

The application aff_setup.exe by PC Backup Software Limited has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from cdn.backupgrid.net and multiple other hosts.
Publisher:
PC Backup Software Limited  (signed and verified)

MD5:
cbaf35316e3e316ae3f6c733769ce50c

SHA-1:
d34da90b922dd9ebb3b674f5f7992f7af6b3def8

SHA-256:
a41784baec9ebf3668c708e0083126f352d9ea6f2aca2f649cee172acc281ccf

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/25/2024 12:24:46 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Optional.Installer.J
14.7.31.23

File size:
108.8 KB (111,440 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\19d1b111_stp\aff_setup.exe

Digital Signature
Signed by:
PC Backup Software Limited

Authority:
DigiCert Inc

Valid from:
7/8/2014 3:00:00 AM

Valid to:
7/12/2016 3:00:00 PM

Subject:
CN=PC Backup Software Limited, O=PC Backup Software Limited, L=Whiteley, S=Hanmpshire, C=GB

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

Serial number:
05695BB515DA4B74B5B9C54CEBC782E0

File PE Metadata
Compilation timestamp:
12/6/2009 1:50:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:OQIURTXJWUYRD66YbmWE38jnmjIjRGTQF6too/7dubv:OskUaD6ryWE3CnpjA46b/7dubv

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.3236

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file aff_setup.exe has been seen being distributed by the following 3 URLs.

http://cdn.backupgrid.net/aff_setup.exe

http://random.backupcdn.com/aff_setup.exe

http://cdn2.backupgrid.net/aff_setup.exe

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