8a0f26502cfbd38dcd0fc80feb2dfd85b33d324a049108faaa16a5ef04e22c57

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/02/2024, 05:01

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General

Target

2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe
Size

119KB
MD5

73c794c28b833932eaa17ed10c0a0010
SHA1

3dcdae92e95277c23483366e997c47b9759b2558
SHA256

8a0f26502cfbd38dcd0fc80feb2dfd85b33d324a049108faaa16a5ef04e22c57
SHA512

e65cacf9cbb2acc9729f5f0714cdd62de068ca47aea311de812e8fa2c2e0c014e79f242332475d22af8d30d11f0f2123c942972e25581cc83fab950140cad765
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUSB:vCjsIOtEvwDpj5H9YvQd26

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1376	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 1376	1272	2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe	89
PID 1272 wrote to memory of 1376	1272	2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe	89
PID 1272 wrote to memory of 1376	1272	2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_73c794c28b833932eaa17ed10c0a0010_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
119KB

MD5
42cfbaefe5af8925c03fc78d091a908d

SHA1
d815b56e75a9b19cce42dd4122d531d9938bbef9

SHA256
dc5c041d457926f683765fc89703487b3c90dadcbc888f4dbafddebcb65cff72

SHA512
4fbae228ebda8c36f8a957e88d5caeefd0f26408e1ba44ce8287b8c1c1e67141f7f5109cf4f70e0d5bbc4263a7df6a6f3a08955909317d6d46aa1c41a1462cc1

Download Submit
memory/1272-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1272-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1272-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1376-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/1376-22-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download