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5naczjtk.nul

DIrect download gTT

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The file 5naczjtk.nul by DIrect download gTT 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 OutBrowse Revenyou installer. It is also typically executed from the user's temporary directory.
Publisher:
DIrect download gTT  (signed and verified)

MD5:
a186bfe86588142cfddb6b887a78fb8a

SHA-1:
2ec5006dc557d67a68bd28fe0bb39df00e42ab24

SHA-256:
888f492c74695e7dccc7a6986ad4623a35ad0415eda7e1c3288b1100cbac8e5d

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/30/2024 7:01:50 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.7.24.12

File size:
612 KB (626,688 bytes)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Common path:
C:\users\{user}\appdata\local\temp\5naczjtk.nul

Digital Signature
Signed by:
DIrect download gTT

Authority:
thawte, Inc.

Valid from:
3/8/2015 1:00:00 AM

Valid to:
1/28/2016 12:59:59 AM

Subject:
CN=DIrect download gTT, O=DIrect download gTT, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
5193C4BEDB4925320C19474395FF135C

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:CGUZH3Zq3TG2MIKximnsynJfgcCrT65JpF56Ui9yfOGdBfGll3:CGU9AjbMBVnzJHEC3Fyyffrfw

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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