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5a166eeb_stp.exe

The application 5a166eeb_stp.exe has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from web1.upsa1a.com.
Version:
1.1.8.14354

MD5:
9844a5edbd5d8829efe244eb3caed385

SHA-1:
0e954895b4b1e35fb04fc7adbdb2f1a9e1d14492

SHA-256:
a7cc3b86fb0889375877c40b1e8adc7de2f8ed5e80322bc7c8b1aba54b55b780

Scanner detections:
2 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional software, mostly toolbars and other potentially unwanted applications using the Vittalia monitization installer.

Analysis date:
11/5/2024 5:58:52 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/Vittalia.W potentially unwanted application
7.0.302.0

Reason Heuristics
PUP.Yontoo.Installer (M)
16.1.15.18

File size:
219 KB (224,238 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\5a166eeb_stp.exe

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:we348kb6388IxRMKGsbb9EqkIh6388IxRM6:Dkq8H/CsbhI8H/H

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9026

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file 5a166eeb_stp.exe has been seen being distributed by the following URL.

http://web1.upsa1a.com/tdtjpd.exe

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