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dmaster.exe

Evgen Kugitko

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions which inject ads in the browser. The application dmaster.exe by Evgen Kugitko has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. The file has been seen being downloaded from ec2-54-88-185-190.compute-1.amazonaws.com.
Publisher:
NirSoft Installer  (signed by Evgen Kugitko)

Product:
NirSoft Installer

Version:
1.1.4.0

MD5:
bdd4b7b8e9ed33b2ee5e3a1e6d789734

SHA-1:
ae81f885b09d9997fd836fc3b7b94a9851cb41f5

SHA-256:
5181a73407a0e155d2f9d2ca61af855b45f633cd22c13440a6f2a3b9ca0c76ec

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:
5/15/2024 11:19:19 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Webpick (M)
17.2.16.3

File size:
522.2 KB (534,760 bytes)

Product version:
1.1.4.0

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Evgen Kugitko

Authority:
Thawte, Inc.

Valid from:
9/24/2014 6:00:00 AM

Valid to:
9/25/2015 5:59:59 AM

Subject:
CN=Evgen Kugitko, OU=Individual Developer, O=No Organization Affiliation, L=Kiev, S=Kiev, C=UA

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
4179EA1BEC59D4CA7E66862832555480

File PE Metadata
Compilation timestamp:
6/20/1992 4:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x15C682

Entry point:
52, 8D, 15, 9C, 31, 53, 00, 33, C9, 03, 0A, 0F, B6, 09, 80, E9, B8, 5A, 0F, 85, AD, 58, FD, FF, 53, 0F, 84, F3, 1A, FA, FF, 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, 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...
 
[+]

Code size:
686.5 KB (702,976 bytes)

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

http://ec2-54-88-185-190.compute-1.amazonaws.com/eRhrO5_u3ho/lydCquoNukSWuQsobpV2Lg/lydCquoNukT88DAD8TZsAA/JfWmS8ZBI7_6Gyr-vtxVQg/.../8P2_ifLCEWBdKz4sJDUbVg

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