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adobe_flash_player.exe

OOO Master-Code

The application adobe_flash_player.exe by OOO Master-Code has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup program which is used to install the application. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from checkupdate.onlylatestsoft2install.xyz.
Publisher:
Astalavista  (signed by OOO Master-Code)

Description:
Download Manager

Version:
1.3.4.0

MD5:
3a66c18a64a8bbe69aa1b017f9a6d258

SHA-1:
b4ab631a88f393855c0d54e067b7033cfd82ab83

SHA-256:
c8d11ba6b24031bc08113871f66405b8c91f573047482ed8a43e1d570efed437

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.

Analysis date:
8/3/2025 9:04:43 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.OOOMaste (M)
16.7.10.22

File size:
111.1 KB (113,800 bytes)

Product version:
1.3.4.0

Copyright:
Copyright © 2015

Original file name:
installer.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\adobe_flash_player.exe

Digital Signature
Signed by:
OOO Master-Code

Authority:
COMODO CA Limited

Valid from:
12/30/2015 1:00:00 AM

Valid to:
12/30/2016 12:59:59 AM

Subject:
CN=OOO Master-Code, O=OOO Master-Code, STREET="g. Moskva, shosse Leningradskoe, d. 96 korp. 1", L=Moscow, S=Moscow, PostalCode=125195, C=RU

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

Serial number:
279FF38879389EFB871A488209A250F7

File PE Metadata
Compilation timestamp:
5/9/2016 2:46:22 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
48.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
1536:TUSRjUkvF5mwtamAjtLRSIcq0SZ18u1b4H8c4pwoozZa:PCkvF6mAj3S3q0SZ18u1b4F4pwooA

Entry address:
0x19BCE

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, 00, 03, 00, 00, 00, 30, 00, 00, 80, 0E, 00, 00, 00, C0, 00, 00, 80, 10, 00, 00, 00, F0, 00, 00, 80, 18, 00, 00, 00, 20, 01, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, 00, 01, 00, 00, 00, 60, 00, 00, 80, 02, 00, 00, 00, 78, 00...
 
[+]

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
95 KB (97,280 bytes)

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

http://checkupdate.onlylatestsoft2install.xyz/ehJybGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9/eyifaWQJOjEuMzg1MTU4NDU2ODE4ODg1NGUrMTksIl9tIjoiMSIsIl9xcCI6InhfbWNpZD1wXzU3NWM2NjVhNDZmZTJcdTAwMjZ4X21jdXJsPWh0dHAlM0ElMkYlMkY1NC44OC4yNDYuNDIiLCJfc2VyIjoxNDY1NjcyMjExLCJfdCI6ZmFsc2UsIl90aWQiOiJmOTliNmZhYy1lMmE4LTRlNTMtOGQ2Ny0xZDYzZDczNzgyMDUtMjEiLCJfdWFoIjoiNjcwOTQ0NTc0NDgzMDQ0NzA5NyIsIl94aW4iOiJhZG9iZV9mbGFzaF9wbGF5ZXIuZXhlIiwiX3hpcCI6IjgxLjI0NS4yMzguMTMwIiwiYWlkIjoiNCIsImRlYnVnZXJyIjoiMSIsImV4cCI6Mi4xNDc0ODM2NDhlKzA5LCJoIjoiY2hlY2t1cGRhdGUub25seWxhdGVzdHNvZnQyaW5zdGFsbC54eXoiLCJoMCI6InBvcnRhbC1zYWZlLm5ldCIsIm5nIjozLCJyZSI6MTQ2NTc1OTcwNiwicmV0Ijo5MDAsInJ0IjoxLjQ2NTY3MzMwNmUrMDksInMiOiIyMDE1MDgwNjQiLCJzZWMiOiI1YTFiZSJ9/.../download

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