nss39c2.tmp

Ratio Applications

The software will display additional offers (such as adware) during installation including a browser toolbar/extension as well as advertising injection software (part of the Injekt brand). The file nss39c2.tmp by Ratio Applications has been detected as adware 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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from spursx5.tinyboxarcade.com.
Publisher:
Ratio Applications  (signed and verified)

MD5:
670ce708b9af00701450a1886cf3f71c

SHA-1:
83dfe9cafb9404ab219d5232d11583885af60e34

SHA-256:
ae46cbff04ff79e859de096909746c697684373018658a4c747ab81ed2987b20

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Injects display ads (banner ads), in-text ads, interstitial ads, or other types of ads in the web browser as well as alters the browsers settings (home page, search, DNS, and security protocols).

Analysis date:
12/26/2024 5:27:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Injekt.RatioApplications.Installer (M)
15.9.20.23

File size:
4.3 MB (4,558,464 bytes)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\nss39c2.tmp

Digital Signature
Authority:
Symantec Corporation

Valid from:
2/9/2015 5:00:00 PM

Valid to:
5/11/2016 5:59:59 PM

Subject:
CN=Ratio Applications, O=Ratio Applications, L=St. James, S=St. James, C=BB

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
2C6864FA270A42D59AC5ABB22BC46227

File PE Metadata
Compilation timestamp:
6/6/2009 3:41:48 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:Nz2kCZz5bx5YIW0t8koCfrjnPBrQ5qOwlizZXiF2kCZz5bSj:NzZCPbx5lW0tRLf3nxQ5qOXzkFZCPbG

Entry address:
0x30CB

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, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9845

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file nss39c2.tmp has been seen being distributed by the following URL.

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