troldesh | 4d00ce6c7237134b00cde4b24f1c6dfaffb031cf84845a8bae2a5e5ece8f5434

Analysis

max time kernel
122s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
27-04-2022 02:46

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General

Target

msg.exe
Size

1.0MB
MD5

b891aa5781114582c27baa0c8029777c
SHA1

7a53a0516286728323c8e6d02a6a5e1077726f4c
SHA256

4d00ce6c7237134b00cde4b24f1c6dfaffb031cf84845a8bae2a5e5ece8f5434
SHA512

63e5357d3b24f6435d77c47c510386dfe45e97ade64e574b24f3349a08a63e0f415534a3e5bc72f9d45011abbead12e9d8bfecbd61ff3363326af0b4b73cbc85

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

Processes:

resource	yara_rule
behavioral2/memory/4736-131-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/4736-132-0x0000000000400000-0x0000000000608000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msg.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	msg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	msg.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 4 IoCs

Processes:

msg.exe

pid	Process
4736	msg.exe
4736	msg.exe
4736	msg.exe
4736	msg.exe

C:\Users\Admin\AppData\Local\Temp\msg.exe
"C:\Users\Admin\AppData\Local\Temp\msg.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4736

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/4736-130-0x0000000002350000-0x0000000002425000-memory.dmp

Filesize
852KB

Download
memory/4736-131-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/4736-132-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download