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installer_adobe_flash_player_english.exe

safe install OPT

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application installer_adobe_flash_player_english.exe by safe install OPT 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 downloaderbox.com.
Publisher:
safe install OPT  (signed and verified)

MD5:
1c370d0233c0baa3d083b9cab03ccbb3

SHA-1:
3a82ee4892a701b2ea149aefe16d547bcf84383f

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:
12/24/2024 2:07:14 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.9.6.3

File size:
580.3 KB (594,224 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\My documents\downloads\installer_adobe_flash_player_english.exe

Digital Signature
Signed by:
safe install OPT

Authority:
thawte, Inc.

Valid from:
2/3/2015 7:00:00 AM

Valid to:
1/28/2016 6:59:59 AM

Subject:
CN=safe install OPT, O=safe install OPT, L=Dublin, S=Dublin, C=IE

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

Serial number:
07B264D5824AFC5063504506C3B2763F

File PE Metadata
Compilation timestamp:
12/6/2009 5:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:2g6Ny7ZMCuMTs50rV8E7A6NeHNPKSIdu8mjxx83APuoy+jLR:2gB7ZMCuMTsipz7A6NeHNPKpdu8mdxw2

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:
7.9659

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://downloaderbox.com/installers/axtan_installers/get.php?ua=chrome&ut=7ad5e54879420d11ca585e18c2011c90&x=L2hvbWUvZG93bl9jcm9ucy9wdWJsaWNfaHRtbC9pbnN0YWxsZXJzL291dC9vbi8xL2ZyZWVzb2Z0c3RvcmVjb20vZW5nbGlzaC9yZXZlbnVlL2Nocm9tZS9hZG9iZV9mbGFzaF9wbGF5ZXIvaS8yNzU4NzZlMzRjZjYwOWRiMTE4ZjNkODRiNzk5YTc5MC9vdXQvbmEvbmEvaW5zdGFsbGVyX2Fkb2JlX2ZsYXNoX3BsYXllcl9FbmdsaXNoLmV4ZQ==&loop=4&p=RlJFRVNPRlRTVE9SRUNPTQ==&u=L2Rvd25sb2FkLmZyZWVzb2Z0c3RvcmUyLmNvbS9pbnN0YWxsZXJzL291dC8wMDIwMzAwMjA0MDAyMDUvcGlpZC01NGQyMWUzM2UwMzBkMy4yMjY1OTU0OS9vbi8xL2ZyZWVzb2Z0c3RvcmVjb20vZW5nbGlzaC9yZXZlbnVlL2Nocm9tZS9hZG9iZV9mbGFzaF9wbGF5ZXIvaS8yNzU4NzZlMzRjZjYwOWRiMTE4ZjNkODRiNzk5YTc5MC9vdXQvbmEvbmEvaW5zdGFsbGVyX2Fkb2JlX2ZsYXNoX3BsYXllcl9FbmdsaXNoLmV4ZQ==&r=1756428&aa=on/1/freesoftstorecom//&BF=38&NE=78&AG=45&FN=10&FM=88&KH=78&FJ=59&MA=36&JD=35&FB=42&s=648678028405942859080464552186551418221061666841850806362671236378200306572167343333069227351988818849597713548871287200945044925800859531986774802522626230632213208251340918

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