troldesh | 28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
15-06-2022 16:06

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General

Target

28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe
Size

1.0MB
MD5

553d1e382f923f744c32fc9b32286e3e
SHA1

3bdb700a98aeec454b59bd826f0fcd04cee29cdc
SHA256

28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b
SHA512

3d39f2b3ddf813d1b8b654e469bfa8b8f68fb3bee6823f7e49dab1add9920e4e7fdc8ff89a0d73c730e61128bcf86b162796232bbba1bbbcd3a7675817e36ccf

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 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3204-131-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3204-132-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/memory/3204-134-0x0000000000400000-0x0000000000608000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.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\""	28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.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:

28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe

pid	process
3204	28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe
3204	28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe
3204	28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe
3204	28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe

C:\Users\Admin\AppData\Local\Temp\28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe
"C:\Users\Admin\AppData\Local\Temp\28e7bb42438e1c8e0cb9057717116d5e56fbe67c9779f7946a5f0f85f26db89b.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:3204

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/3204-130-0x00000000023B0000-0x0000000002485000-memory.dmp

Filesize
852KB

Download
memory/3204-131-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3204-132-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/3204-133-0x00000000023B0000-0x0000000002485000-memory.dmp

Filesize
852KB

Download
memory/3204-134-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download