troldesh | 4d00ce6c7237134b00cde4b24f1c6dfaffb031cf84845a8bae2a5e5ece8f5434

Analysis

max time kernel
142s
max time network
155s
platform
windows7_x64
resource
win7-20220331-en
submitted
04-04-2022 03:35

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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 spyware stealer 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
behavioral1/memory/292-55-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/292-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

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-1-5-21-3422572840-2899912402-917774768-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	msg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3422572840-2899912402-917774768-1000\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 2 IoCs

Processes:

msg.exe

pid process

292 msg.exe
292 msg.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

msg.exe

pid process

292 msg.exe

pid	process
292	msg.exe
292	msg.exe

pid	process
292	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
- Suspicious use of UnmapMainImage
PID:292

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

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/292-54-0x00000000759E1000-0x00000000759E3000-memory.dmp

Filesize
8KB

Download
memory/292-55-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/292-56-0x00000000002E0000-0x00000000003B5000-memory.dmp

Filesize
852KB

Download
memory/292-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download