4cf.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 4cf.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. The file has been seen being downloaded from spursx5.tinyboxarcade.com.
Publisher:
Ratio Applications  (signed and verified)

MD5:
1926265cd50d99a8d7a3cae40b12644e

SHA-1:
4faf7b07c588b9bc0f0b2e0bc3c91b82c15cc9ef

SHA-256:
5bcc368dd9279e42cf688d01c5fb827076c66ca835d802566b39800c8f639b1b

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:
5/23/2024 1:50:52 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Injekt.RatioApplications.Installer (M)
16.2.9.20

File size:
4.6 MB (4,829,120 bytes)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\windows\temp\4cf.tmp

Digital Signature
Authority:
Symantec Corporation

Valid from:
2/9/2015 6:00:00 PM

Valid to:
5/11/2016 6:59:59 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 4:41:48 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:OwHZ8/g6R2b47rZ2f5LhqgrbzOpSG+/cxqUDd8HcjTv18U4J/gOdWHZ8/g1f:OwG/7R2bJf5AaUSH/cAUDdp3vNugiWGY

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:
7.9858

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file 4cf.tmp has been seen being distributed by the following URL.

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