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 and multiple other hosts.
Publisher:
safe install OPT  (signed and verified)

MD5:
bc84b4869d383519d12830a418780b98

SHA-1:
3aa014077bc0fa2c9d15d9384840e3818e80ef9a

SHA-256:
31ecf6da325e8317c0a151d6fd8cc89b165bebc8bf50772d0e9bf4ffca74b318

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:
11/24/2024 1:05:40 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.safeinstallOPT (M)
15.9.11.23

File size:
581.9 KB (595,824 bytes)

File type:
Executable application (Win32 EXE)

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

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

Digital Signature
Authority:
thawte, Inc.

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

Valid to:
1/28/2016 1:59:59 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 12:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:L06Ny7ZMCuMTs50rV8E7A6NeHNPKSIdu8mjxx83APu6vFegiSz:L0B7ZMCuMTsipz7A6NeHNPKpdu8mdxww

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:
7.9663

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 2 URLs.

http://downloaderbox.com/installers/axtan_installers/get.php?ua=chrome&ut=2ac068e0f66528cf3ec32be6b042b34b&x=L2hvbWUvZG93bl9jcm9ucy9wdWJsaWNfaHRtbC9pbnN0YWxsZXJzL291dC9vbi8yL2ZyZWVzb2Z0c3RvcmVjb20vZW5nbGlzaC9yZXZlbnVlL2Nocm9tZS9hZG9iZV9mbGFzaF9wbGF5ZXIvZC8yNzU4NzZlMzRjZjYwOWRiMTE4ZjNkODRiNzk5YTc5MC9vdXQvbmEvbmEvaW5zdGFsbGVyX2Fkb2JlX2ZsYXNoX3BsYXllcl9FbmdsaXNoLmV4ZQ==&u=L2Rvd25sb2FkMi5mcmVlc29mdHN0b3JlMi5jb20vaW5zdGFsbGVycy9vdXQvMDAyMDMwMDIwNDAwMjA1L3BpaWQtNTRkMWZmYzU2ZWIyMjguNTU4ODUwNjMvb24vMi9mcmVlc29mdHN0b3JlY29tL2VuZ2xpc2gvcmV2ZW51ZS9jaHJvbWUvYWRvYmVfZmxhc2hfcGxheWVyL2QvMjc1ODc2ZTM0Y2Y2MDlkYjExOGYzZDg0Yjc5OWE3OTAvb3V0L25hL25hL2luc3RhbGxlcl9hZG9iZV9mbGFzaF9wbGF5ZXJfRW5nbGlzaC5leGU=&r=3904711&p=RlJFRVNPRlRTVE9SRUNPTQ==&loop=1&aa=on/2/freesoftstorecom//&CD=31&KE=45&CC=30&HC=1&AD=10&GD=65&HH=45&KM=20&HG=55&CH=37&s=6764086507849397251404935099253929337998672612348598081581416809732531309660904753652700951632515869009966066532997178273437698285185181798441641459277620480219728236416260434

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