skype.exe

VERIFIED SOFTWARE snb

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application skype.exe by VERIFIED SOFTWARE snb 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. The file has been seen being downloaded from download.downloadease.net.
Publisher:
VERIFIED SOFTWARE snb  (signed and verified)

MD5:
935e25b0eee01ed9aabc69a32c395cc3

SHA-1:
1574e2a83a03f7f84dd79ee21453c9af6916c7a9

SHA-256:
45a87685663c4191d109da4f6329852d9318e0131e55797c1c8de336c5081389

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 is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
11/23/2024 9:59:47 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.8.22.17

File size:
576.2 KB (590,056 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\skype.exe

Digital Signature
Authority:
thawte, Inc.

Valid from:
3/11/2015 5:00:00 PM

Valid to:
1/27/2016 4:59:59 PM

Subject:
CN=VERIFIED SOFTWARE snb, O=VERIFIED SOFTWARE snb, L=Dublin, S=Dublin, C=IE

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

Serial number:
7AF1676F5AA70E4C13D24B9BD216BBB5

File PE Metadata
Compilation timestamp:
12/5/2009 3:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:wPVrfpUiF73JLv54hZUSpARH2oBUY+QIUypkTMsROddPj9obuztC:wPLUy73EhjyRfUGUkfOdoyo

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, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9419

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://download.downloadease.net/download/716/.../

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