Malware Analysis Report

2025-01-02 14:21

Sample ID 220524-bgswmseeen
Target 2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be
SHA256 2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be
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

2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be

Threat Level: Known bad

The file 2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be was found to be: Known bad.

Malicious Activity Summary

troldesh discovery persistence ransomware trojan upx

Troldesh, Shade, Encoder.858

Deletes shadow copies

UPX packed file

Adds Run key to start application

Checks installed software on the system

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Interacts with shadow copies

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-24 01:07

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-24 01:07

Reported

2022-05-24 01:10

Platform

win7-20220414-en

Max time kernel

9s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe"

Signatures

Troldesh, Shade, Encoder.858

ransomware trojan troldesh

Deletes shadow copies

ransomware

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.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\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\vssadmin.exe N/A
N/A N/A C:\Windows\system32\vssadmin.exe N/A
N/A N/A C:\Windows\system32\vssadmin.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 1056 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe

"C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe"

C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe

"C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe"

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe List Shadows

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe List Shadows

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe

C:\Windows\SysWOW64\chcp.com

chcp

Network

Country Destination Domain Proto
DE 131.188.40.189:443 tcp
N/A 127.0.0.1:49170 tcp
US 208.83.223.34:80 tcp
DE 193.23.244.244:443 tcp
NL 45.140.140.68:9001 tcp
HU 185.163.204.206:9001 tcp
UA 31.42.186.165:9001 tcp

Files

memory/1056-54-0x0000000002080000-0x000000000219D000-memory.dmp

memory/1056-58-0x0000000002080000-0x0000000002156000-memory.dmp

memory/1968-60-0x00000000764C1000-0x00000000764C3000-memory.dmp

memory/1968-61-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1056-59-0x00000000021A0000-0x0000000002275000-memory.dmp

memory/1968-57-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1968-62-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1968-56-0x0000000000605CB0-mapping.dmp

memory/1968-55-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1968-63-0x0000000000400000-0x0000000000608000-memory.dmp

memory/524-64-0x0000000000000000-mapping.dmp

memory/1744-65-0x0000000000000000-mapping.dmp

memory/1520-66-0x0000000000000000-mapping.dmp

memory/1536-67-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-24 01:07

Reported

2022-05-24 01:10

Platform

win10v2004-20220414-en

Max time kernel

92s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.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
N/A N/A N/A N/A
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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe
PID 2944 wrote to memory of 984 N/A C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe

"C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe"

C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe

"C:\Users\Admin\AppData\Local\Temp\2b0b9bfe347af1b28818e71caa4a0c6729a8a0df980f8cba4f5fca72e912a9be.exe"

Network

Country Destination Domain Proto
NL 178.79.208.1:80 tcp
NL 178.79.208.1:80 tcp
NL 104.97.14.81:80 tcp
SE 171.25.193.9:80 tcp
IE 20.54.110.249:443 tcp
NL 178.79.208.1:80 tcp
NL 178.79.208.1:80 tcp
N/A 127.0.0.1:49717 tcp
NL 87.248.202.1:80 tcp
JP 76.73.17.194:9090 tcp
US 8.8.8.8:53 storesdk.dsx.mp.microsoft.com udp
NL 104.81.142.39:443 storesdk.dsx.mp.microsoft.com tcp

Files

memory/984-130-0x0000000000000000-mapping.dmp

memory/984-132-0x0000000000400000-0x0000000000608000-memory.dmp

memory/984-131-0x0000000000400000-0x0000000000608000-memory.dmp

memory/2944-134-0x000000000260A000-0x00000000026E0000-memory.dmp

memory/984-136-0x0000000000400000-0x0000000000608000-memory.dmp

memory/2944-135-0x0000000002730000-0x0000000002805000-memory.dmp

memory/984-133-0x0000000000400000-0x0000000000608000-memory.dmp

memory/984-137-0x0000000000400000-0x0000000000608000-memory.dmp