troldesh | 94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02

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17-04-2024 14:30

240417-rt43faca49 10

17-04-2024 14:30

17-04-2024 14:29

17-04-2024 14:29

17-04-2024 14:29

31-07-2022 05:21

Analysis

max time kernel
157s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2022 05:21

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General

Target

94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
Size

1.5MB
MD5

6599f79e40a26186261b58aa89194e5b
SHA1

0a44b71f930447d545de0f10b6f9c70d513acacc
SHA256

94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02
SHA512

9e4c8b704bdf6f69df693c40c323f069ac7b9900ab8486d7e5a8423670aa1ee686ccfb6c4026f903d0928145efeee04b0b4cded0000f918862208baba9913748

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 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4888-132-0x0000000000400000-0x000000000062A000-memory.dmp	upx
behavioral2/memory/4888-133-0x0000000000400000-0x000000000062A000-memory.dmp	upx
behavioral2/memory/3088-136-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3088-141-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3088-142-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3088-144-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3088-145-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3088-146-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/4888-147-0x0000000000400000-0x000000000062A000-memory.dmp	upx
behavioral2/memory/3088-148-0x0000000000400000-0x0000000000608000-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-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4888 set thread context of 3088	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe	92

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe

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

pid	Process
3088	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
3088	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
3088	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
3088	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
Token: SeCreatePagefilePrivilege	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
Token: SeShutdownPrivilege	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
Token: SeCreatePagefilePrivilege	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 3088	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe	92
PID 4888 wrote to memory of 3088	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe	92
PID 4888 wrote to memory of 3088	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe	92
PID 4888 wrote to memory of 3088	4888	94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe	92

C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
"C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
  C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:3088

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/3088-136-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3088-141-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3088-142-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3088-144-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3088-145-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3088-146-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3088-148-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/4888-132-0x0000000000400000-0x000000000062A000-memory.dmp

Filesize
2.2MB

Download
memory/4888-133-0x0000000000400000-0x000000000062A000-memory.dmp

Filesize
2.2MB

Download
memory/4888-134-0x0000000003360000-0x0000000003394000-memory.dmp

Filesize
208KB

Download
memory/4888-147-0x0000000000400000-0x000000000062A000-memory.dmp

Filesize
2.2MB

Download