troldesh | 54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a

Analysis

max time kernel
149s
max time network
173s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
25-07-2022 17:36

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General

Target

54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe
Size

1.4MB
MD5

f8053958d72bd4de36dd03e252d099fa
SHA1

f7a6cd1ebd84fe4d8e161fd07f26be9f741baecf
SHA256

54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a
SHA512

0689eb1bb6b93fd1ea410e3ef1ec40b1e61b5a7752275d3cb9e078bd68ed07a8edec7e39f9823fd850d402c5e0487fe14b1b2a170ba283b373d480ed0d108b8f

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

resource	yara_rule
behavioral1/memory/820-55-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/820-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/820-58-0x0000000000400000-0x0000000000608000-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-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.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

pid	Process
820	54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe
820	54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
820	54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe

C:\Users\Admin\AppData\Local\Temp\54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe
"C:\Users\Admin\AppData\Local\Temp\54eb57b3b5b69ddd7138912eaf97bb3b0533c086c49a658c00012997f191561a.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:820

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/820-54-0x0000000075CB1000-0x0000000075CB3000-memory.dmp

Filesize
8KB

Download
memory/820-55-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/820-56-0x0000000001EF0000-0x0000000001FC5000-memory.dmp

Filesize
852KB

Download
memory/820-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/820-58-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download