Malware Analysis Report

2025-01-02 14:24

Sample ID 220527-2hryvafbb6
Target 03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118
SHA256 03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118
Tags
troldesh discovery persistence ransomware spyware stealer 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

03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118

Threat Level: Known bad

The file 03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118 was found to be: Known bad.

Malicious Activity Summary

troldesh discovery persistence ransomware spyware stealer trojan upx

Troldesh, Shade, Encoder.858

UPX packed file

Reads user/profile data of web browsers

Checks installed software on the system

Adds Run key to start application

Drops file in Program Files directory

Enumerates physical storage devices

Suspicious use of UnmapMainImage

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Interacts with shadow copies

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-27 22:35

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-27 22:35

Reported

2022-05-28 00:28

Platform

win7-20220414-en

Max time kernel

182s

Max time network

198s

Command Line

"C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.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

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe

"C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:49165 tcp
NL 194.109.206.212:443 tcp
DE 193.23.244.244:443 tcp
AT 86.59.21.38:443 tcp
US 128.31.0.39:9101 tcp
DE 176.198.53.10:9001 tcp
DE 176.9.40.131:443 tcp
DE 45.136.31.135:9001 tcp

Files

memory/964-54-0x0000000076451000-0x0000000076453000-memory.dmp

memory/964-55-0x0000000000400000-0x0000000000608000-memory.dmp

memory/964-56-0x0000000001D90000-0x0000000001E65000-memory.dmp

memory/964-57-0x0000000000400000-0x0000000000608000-memory.dmp

memory/964-58-0x0000000000400000-0x0000000000608000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-27 22:35

Reported

2022-05-28 00:29

Platform

win10v2004-20220414-en

Max time kernel

190s

Max time network

191s

Command Line

"C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.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

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\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.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\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A

Checks installed software on the system

discovery

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\CHANGELOG.md C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_TestDrive.help.txt C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_should.help.txt C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_Pester.help.txt C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_Mocking.help.txt C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_BeforeEach_AfterEach.help.txt C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\README.md C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A
File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\nunit_schema_2.5.xsd C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe N/A

Enumerates physical storage devices

Interacts with shadow copies

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe

"C:\Users\Admin\AppData\Local\Temp\03fdefbe3c04e033faf2ffbb515adaa4bbaad890ad07291ea551f0c2a69fc118.exe"

C:\Windows\system32\vssadmin.exe

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

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

Network

Country Destination Domain Proto
US 20.42.65.88:443 tcp
AT 86.59.21.38:443 tcp
N/A 127.0.0.1:49730 tcp
NL 87.248.202.1:80 tcp
SE 171.25.193.9:80 tcp
NL 194.109.206.212:443 tcp
US 208.83.223.34:80 tcp
DE 131.188.40.189:443 tcp
FR 51.91.73.194:9001 tcp
GB 51.75.170.247:9001 tcp
LI 94.177.122.247:443 tcp
N/A 127.0.0.1:57410 tcp
N/A 127.0.0.1:57410 tcp
N/A 127.0.0.1:57410 tcp
N/A 127.0.0.1:57410 tcp
N/A 127.0.0.1:57410 tcp

Files

memory/2460-130-0x00000000023C0000-0x0000000002495000-memory.dmp

memory/2460-131-0x0000000000400000-0x0000000000608000-memory.dmp

memory/2460-132-0x0000000000400000-0x0000000000608000-memory.dmp

memory/2460-133-0x00000000023C0000-0x0000000002495000-memory.dmp

memory/2460-134-0x0000000000400000-0x0000000000608000-memory.dmp

memory/4984-135-0x0000000000000000-mapping.dmp