troldesh | 8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07

Analysis

max time kernel
183s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2022 05:22

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General

Target

8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
Size

2.1MB
MD5

f79541bde0390fa17fe77490ae57ede4
SHA1

74cf35b9c1bff1a27717f07cdf73a840ba68a601
SHA256

8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07
SHA512

5f9f0b4ddd9de10f8b22167c16d2d288ad381d59d4b2bb02f0346fde36d8f122ce922c065735c0ee58ac9e36d97e9f7323f7dc2da2d1512f0a9c8e25d44dbb41

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 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2348-132-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/2348-137-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/2348-138-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/2348-140-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/2348-141-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/2348-142-0x0000000000400000-0x0000000000608000-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-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.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 2308 set thread context of 2348	2308	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe	84

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
2348	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
2348	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
2348	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
2348	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2348	2308	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe	84
PID 2308 wrote to memory of 2348	2308	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe	84
PID 2308 wrote to memory of 2348	2308	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe	84
PID 2308 wrote to memory of 2348	2308	8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe	84

C:\Users\Admin\AppData\Local\Temp\8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
"C:\Users\Admin\AppData\Local\Temp\8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
  C:\Users\Admin\AppData\Local\Temp\8d0c39777ac5ab85f55144297ed1aebf27980191b127921eb9a5b26ff9bc1a07.exe
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:2348

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:3524

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

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Downloads

memory/2308-130-0x00000000024B0000-0x00000000024E4000-memory.dmp

Filesize
208KB

Download
memory/2308-139-0x00000000024B0000-0x00000000024E4000-memory.dmp

Filesize
208KB

Download
memory/2348-132-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2348-137-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2348-138-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2348-140-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2348-141-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2348-142-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download