troldesh | 7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3

General

Target

7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe
Size

1.6MB
MD5

8af61cf426f27fabebb2f36a7fc09ecc
SHA1

625dba2ddc6c0be037b22870407e988f284f5e64
SHA256

7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3
SHA512

00a4967ce6a02f1cf1badf86efcf8051bcb0cf7100071e059e1bbc688aaef41ae1eedce07a35330731d448806f7d45ed839afa0937cc31199c9b6a892a4f54ce

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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2008-55-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/2008-57-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/2008-62-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/2008-63-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/2008-64-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/2008-65-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral1/memory/2008-66-0x0000000000400000-0x0000000000608000-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-1-5-21-4084403625-2215941253-1760665084-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\""	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.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 948 set thread context of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27

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
2008	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe
2008	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27
PID 948 wrote to memory of 2008	948	7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe	27

C:\Users\Admin\AppData\Local\Temp\7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe
"C:\Users\Admin\AppData\Local\Temp\7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:948
- C:\Users\Admin\AppData\Local\Temp\7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe
  "C:\Users\Admin\AppData\Local\Temp\7299a4d81ec242a0b24965bdf12cf85c18d474361e93a00457cc67deb928e0c3.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:2008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/948-60-0x00000000005C0000-0x0000000000698000-memory.dmp

Filesize
864KB

Download
memory/948-61-0x0000000000AE0000-0x0000000000BB5000-memory.dmp

Filesize
852KB

Download
memory/948-54-0x00000000005C0000-0x00000000006E0000-memory.dmp

Filesize
1.1MB

Download
memory/948-58-0x0000000000400000-0x00000000005B7000-memory.dmp

Filesize
1.7MB

Download
memory/2008-57-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2008-59-0x0000000075A61000-0x0000000075A63000-memory.dmp

Filesize
8KB

Download
memory/2008-55-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2008-62-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2008-63-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2008-64-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2008-65-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/2008-66-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download

Analysis

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