troldesh | 4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407

Target

4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe
Size

1.0MB
MD5

dd77766a7812b98ad629c9d95e32a616
SHA1

9c821700d9af634ac0c3cf2076ac3e681774c47f
SHA256

4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407
SHA512

d49067da309deec250ab5753fec487ed77b6e3659cb7d4f41b4a81b3eacfc370ddd024bb14bea11a660234f468ea1535f5971f7e51b1736c60f0a783ff5b2c1d

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/748-56-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/748-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/748-59-0x0000000000400000-0x0000000000608000-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
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\""	4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.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
748	4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe
748	4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
748	4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe

C:\Users\Admin\AppData\Local\Temp\4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe
"C:\Users\Admin\AppData\Local\Temp\4486ecf3f3498975deb6bc982ee6c543d1453cd55fd35662eef7dc7878c3e407.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:748

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

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Downloads

memory/748-54-0x0000000000300000-0x00000000003D5000-memory.dmp

Filesize
852KB

Download
memory/748-55-0x0000000075541000-0x0000000075543000-memory.dmp

Filesize
8KB

Download
memory/748-56-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/748-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/748-58-0x0000000000300000-0x00000000003D5000-memory.dmp

Filesize
852KB

Download
memory/748-59-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download