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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. The installer is marketed through download protals and search ads as the free Adobe Flash Player but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
a8836782f01dfcd368c89984abe75264

SHA-1:
2d8d2612f4f90ad54f053dd4cf59d66e664841af

SHA-256:
d27b5b06a379d74135f2c7bdf88943defbaad247105ec093fd22967a71c78f20

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:
4/19/2024 5:33:16 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.8.6.10

File size:
975 KB (998,448 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:NxheA/Lz7PFVke3dv6FfajLAf0DmKbfKy5mZr:rheA/LPPFVk0vy6EcDLyyEZr

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:
7.9236

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.

http://mbttd.com/engine/.../c1c3VwcGx5X3BsYXRmb3JtX2FjY291bnRfaWQ9NDA1JnN1cHBseV9wbGF0Zm9ybV9pZD00NzUmbGluZV9pdGVtX2lkPTc1NzQ?ext_click_id=xsMm75Jm0mmuulhAHtefJ3D_aMFthUmv7ne0k30gNjeOAa1TuNGtnBfkpieaoLwrPVfsqDJUOtFvRlYVaPXZXCmbEEz3eHlcXPrkpWhhxvAs7yDZKI-lwSoL6UuzGcLglxmTsykW4_xpE8ECe9yg7rICTUa_MzXl_a6w0WKljY1C_Em-xTDta6UZgHmkjq89V9aKVPNt0RsYJVlApq8MwBSD6cEZfQ7hnF8mTlrhfRB8782s6HNAYvt8WYgGTkoGqkVycCitdwqWSt9ZiV19eFJB-FiI0k-c5es7hI3YYEJ5krCjdPUHMgGui2NEDoHkePuIFmhE60sWj8DcZdBqraKiWtKFp3_U3Q7H_GCjobN_HGiahc_EPj428PFjaNcfZS7rDTI8dU003JG0p5hC9JhUz8neDJajLyqsvtFMX8Jj5A

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