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

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

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

pid	Process
1172	3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe
1172	3fe4d9fa4f05d8d12333821a43f91e25bd32f07dc00983183289acffe6b2d229.exe

Suspicious use of UnmapMainImage 1 IoCs

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 Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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