Malware Analysis Report

2025-01-02 14:23

Sample ID 220512-tzwpcsccf8
Target inf.inf
SHA256 fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883
Tags
troldesh discovery persistence ransomware trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883

Threat Level: Known bad

The file inf.inf was found to be: Known bad.

Malicious Activity Summary

troldesh discovery persistence ransomware trojan upx

Troldesh, Shade, Encoder.858

UPX packed file

Adds Run key to start application

Checks installed software on the system

Enumerates physical storage devices

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-12 16:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-12 16:30

Reported

2022-05-12 16:43

Platform

win7-20220414-en

Max time kernel

150s

Max time network

189s

Command Line

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Signatures

Troldesh, Shade, Encoder.858

ransomware trojan troldesh

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\inf.exe

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:49163 tcp
DE 131.188.40.189:443 tcp
DE 193.23.244.244:443 tcp
SE 171.25.193.9:80 tcp
DE 212.227.206.135:443 tcp
TW 123.194.142.123:9001 tcp
FR 176.31.229.76:9001 tcp
N/A 127.0.0.1:49848 tcp
N/A 127.0.0.1:49848 tcp
N/A 127.0.0.1:49848 tcp
N/A 127.0.0.1:49848 tcp
N/A 127.0.0.1:49848 tcp

Files

memory/1960-54-0x0000000075381000-0x0000000075383000-memory.dmp

memory/1960-55-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1960-56-0x00000000002E0000-0x00000000003B5000-memory.dmp

memory/1960-57-0x0000000000400000-0x0000000000608000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-12 16:30

Reported

2022-05-12 16:43

Platform

win10v2004-20220414-en

Max time kernel

147s

Max time network

187s

Command Line

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Signatures

Troldesh, Shade, Encoder.858

ransomware trojan troldesh

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\inf.exe

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Network

Country Destination Domain Proto
NL 104.110.191.133:80 tcp
NL 104.110.191.133:80 tcp
US 93.184.221.240:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 52.109.8.19:443 tcp
US 93.184.220.29:80 tcp
US 104.208.16.90:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.220.29:80 tcp
US 20.42.73.24:443 tcp
IE 20.54.89.106:443 tcp
N/A 127.0.0.1:49737 tcp
DE 131.188.40.189:443 tcp
US 208.83.223.34:80 tcp
US 216.239.36.21:80 tcp
IE 20.54.89.106:443 tcp
US 154.35.32.5:443 tcp
IE 20.54.89.106:443 tcp
US 128.31.0.39:9101 tcp
IE 20.54.89.106:443 tcp
JP 76.73.17.194:9090 tcp

Files

memory/1208-130-0x0000000002260000-0x0000000002335000-memory.dmp

memory/1208-131-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1208-132-0x0000000000400000-0x0000000000608000-memory.dmp