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install-flashplayer.exe

OUTBROWSE

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application install-flashplayer.exe by OUTBROWSE 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. With this installer, users are expecting to download the free Adobe Flash Player but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
95ed5414418df5b4b5132da745f1dd1a

SHA-1:
87f1225c77980068a73ef870ff4a3f410eb069e8

SHA-256:
711eb1509cb54f5df446298a2b8d5e1bf00e8c0219dc103e619706fa64ce6e10

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:
1/12/2025 10:03:44 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Bundler (M)
16.2.12.21

File size:
920.5 KB (942,576 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\install-flashplayer.exe

Digital Signature
Signed by:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/7/2014 7:00:00 AM

Valid to:
4/8/2015 6:59:59 AM

Subject:
CN=OUTBROWSE, O=OUTBROWSE, STREET=Bialik Number: 143, L=Ramat Gan, S=Israel, PostalCode=5252337, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00A5F03C3A375C11FD6C1C160EE8BFF923

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):
24576:c/HXdyZNrNF/4lgGhpwJxmntY1VKc9IsTELQ:6HXc3BqXp6fScKsIL

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:
7.9174

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file install-flashplayer.exe has been seen being distributed by the following URL.

https://secure-sin.adnxs.com/click?hG4MwhsofD-yK52PVnt5P9v5fmq8dMM_siudj1Z7eT-EbgzCGyh8Px3d8VNapx0OInNo5hRljyu1R39TAAAAAIvcJQCTBwAAzgIAAAIAAAAjh4wAvfAFAAAAAQBVU0QAVVNEANgCWgAnUQAA4ogAAgUAAQIAAI4ARCU6yAAAAAA./cnd=!wAX_MwilhaYBEKOOsgQYveEXIAI./referrer=https://media.jumpstart.com/DOUnity/yahoo-ads.html/clickenc=http://cnct.tlvmedia.com/ckl.php?s=1&c=sin1CKLmobPOotnHKxACGJ26x5-l6-mODiINMTcxLjk2LjI0MS43NygBMLWP_ZsF&mx=anx&t=adv191352&d=145258&r=http://mbttd.com/engine/.../c4c3VwcGx5X3BsYXRmb3JtX2FjY291bnRfaWQ9NDI1JnN1cHBseV9wbGF0Zm9ybV9pZD00OTEmbGluZV9pdGVtX2lkPTk4MDU?ext_click_id=$CLICKID$

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