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zcashapplication.exe

System Host

The executable zcashapplication.exe has been detected as malware by 2 anti-virus scanners. It is set to automatically start when a user logs into Windows via the current user run registry key under the display name ‘System’. While running, it connects to the Internet address unknown.servernap.com on port 443.
Product:
System Host

Version:
1.0.0.0

MD5:
c13e7a9ac239b2bc0bb61b9a4ba18d38

SHA-1:
f3e5fcdff1226b4ce6b36938db6d575278b34ef4

SHA-256:
83178df3f936ba36c854c5c2364808205b1483b234bfe1c09d517f5d39d7aee9

Scanner detections:
2 / 68

Status:
Malware

Analysis date:
2/25/2025 9:18:30 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Trojan.DownLoader23.56399
9.0.1.05190

ESET NOD32
MSIL/CoinMiner.UJ trojan
6.3.12010.0

File size:
147 KB (150,528 bytes)

Product version:
1.0.0.0

Copyright:
Copyright © 2017

Original file name:
ZCash.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\roaming\monitor\guard\zcashapplication.exe

File PE Metadata
Compilation timestamp:
2/22/2017 1:23:59 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x2352E

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, 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...
 
[+]

Entropy:
5.9844

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

Code size:
133.5 KB (136,704 bytes)

Startup File (User Run)
Registry location:
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
System

Command:
C:\users\{user}\appdata\local\temp\csrss.exe


The executing file has been seen to make the following network communications in live environments.

TCP (HTTP SSL):
Connects to unknown.servernap.com  (69.65.17.35:443)

TCP (HTTP):
Connects to cdn04.top4top.net  (163.172.224.34:80)

TCP (HTTP):
Connects to cdn03.top4top.net  (163.172.224.33:80)

TCP (HTTP):
Connects to e.top4top.net  (163.172.224.35:80)

TCP (HTTP):
Connects to cdn01.top4top.net  (163.172.224.31:80)

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