troldesh | 53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107

Target

53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe
Size

1.4MB
MD5

0bb5679dae9b16d3926be4b2c8c596d7
SHA1

f0d68b1798913c37b3c19970262e3d0e63558232
SHA256

53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107
SHA512

31ac1246975c6d432a1751997a83e2fec5fb91ba538915be08d67a5db385adb22d994f1d19ebb1374e0bad07accf7b1b892f5f68a6e6cbb0e71cc08479fff4ee

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 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2176-131-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/2176-132-0x0000000000400000-0x0000000000608000-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-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.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

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2176	53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe
2176	53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe
2176	53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe
2176	53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe

C:\Users\Admin\AppData\Local\Temp\53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe
"C:\Users\Admin\AppData\Local\Temp\53e3bb561c54df00565fba06ddf477f9980e734e543c85103d8c073cb13a5107.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:2176

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
1⤵
- Checks processor information in registry
PID:2836

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/2176-130-0x0000000002490000-0x0000000002565000-memory.dmp

Filesize
852KB

Download
memory/2176-131-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2176-132-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download