troldesh | 3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229

Target

3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe
Size

1.5MB
MD5

c13629942b30c7773b827380a7ffc045
SHA1

1c0127290effd2571710cef81b95bee140a99f7f
SHA256

3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229
SHA512

6e188f90eaa811fca22a646c1ed17266647f931a05166218df002e5d51168f2eb1a5ce3a9881baf51126087a6793d8cc0d9c5b0a51296cc27257903e93eb6d11

Score

10^/10

troldesh discovery persistence ransomware trojan upx

Malware Config

Signatures

Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
ransomware trojan troldesh

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1172-56-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1172-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/1172-59-0x0000000000400000-0x0000000000608000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe
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\""	3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

pid	process
1172	3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe
1172	3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

pid process

1172 3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

C:\Users\Admin\AppData\Local\Temp\3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe
"C:\Users\Admin\AppData\Local\Temp\3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:1172

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1172-54-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1172-55-0x0000000000220000-0x00000000002F5000-memory.dmp

Filesize
852KB

Download
memory/1172-56-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1172-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1172-58-0x0000000000220000-0x00000000002F5000-memory.dmp

Filesize
852KB

Download
memory/1172-59-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download