installer_adobe_flash_player_portuguese.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_portuguese.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:
46aaedd02a95c02d2e59d3193f667a8e

SHA-1:
4cc7ded810f76b81921019a52ad654e08845d49b

SHA-256:
dcfc7d906f990c80ae5e6753c29241857c3145d9b734c00231e7dd2f8b853dfd

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:
5/16/2024 7:45:03 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.9.24.14

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:\users\{user}\downloads\installer_adobe_flash_player_portuguese.exe

Digital Signature
Authority:
thawte, Inc.

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

Valid to:
1/27/2016 8:59:59 PM

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:
12/5/2009 7:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:Vd86Ny7ZMCuMTs50rV8E7A6NeHNPKSIdu8mjxx83APuoy+jLr:VyB7ZMCuMTsipz7A6NeHNPKpdu8mdxwA

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)

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

http://downloaderbox.com/installers/axtan_installers/get.php?ua=chrome&ut=31e9ddf5bf7eab6de6ce4cc0f83f83e0&x=L2hvbWUvZG93bl9jcm9ucy9wdWJsaWNfaHRtbC9pbnN0YWxsZXJzL291dC9vbi8yL2ZyZWVzb2Z0c3RvcmVjb20vcG9ydHVndWVzZS92ZWxpc21lZGlhL2Nocm9tZS9hZG9iZV9mbGFzaF9wbGF5ZXIvZC8yNzU4NzZlMzRjZjYwOWRiMTE4ZjNkODRiNzk5YTc5MC9vdXQvbmEvbmEvaW5zdGFsbGVyX2Fkb2JlX2ZsYXNoX3BsYXllcl9Qb3J0dWd1ZXNlLmV4ZQ==&r=2980725&p=RlJFRVNPRlRTVE9SRUNPTQ==&u=L2Rvd25sb2FkMi5mcmVlc29mdHN0b3JlMi5jb20vaW5zdGFsbGVycy9vdXQvMDAyMDMwMDIwNDAwMjA1L3BpaWQtNTRkMjE4NmEzMzllZTAuNTU1OTU3MjAvb24vMi9mcmVlc29mdHN0b3JlY29tL3BvcnR1Z3Vlc2UvdmVsaXNtZWRpYS9jaHJvbWUvYWRvYmVfZmxhc2hfcGxheWVyL2QvMjc1ODc2ZTM0Y2Y2MDlkYjExOGYzZDg0Yjc5OWE3OTAvb3V0L25hL25hL2luc3RhbGxlcl9hZG9iZV9mbGFzaF9wbGF5ZXJfUG9ydHVndWVzZS5leGU=&loop=4&aa=on/2/freesoftstorecom//&MA=10&BC=80&KD=90&NH=83&LD=5&NL=49&KF=49&EN=5&KI=70&DL=76&s=35847567050037466229037918468141726573288291037660673375111036218866294024228994951398810024645531151653076875371401392404879422547703011608236386416757

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