fbc4b6f3ec9cc571b18299f626d6e16bd2d6f129df8dbcfa7b5a6ddc20ea5372

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 14:32

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General

Target

2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe
Size

54KB
MD5

561524fa4cff97047fd0c9a09917e904
SHA1

3ca9b5c82efea82826ac3365085f51a1d47abcd5
SHA256

fbc4b6f3ec9cc571b18299f626d6e16bd2d6f129df8dbcfa7b5a6ddc20ea5372
SHA512

0d9913293c14244ca5a808d7abf85c174d39cd4793aebaaf29aa2aafb790f2aa75e516a167584cb5df0b6f64cdc61cbd57444dfff08870b0c9903706e2f24eb9
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5YRtQ:ZVxkGOtEvwDpjct

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	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 4640 wrote to memory of 3932	4640	2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe	88
PID 4640 wrote to memory of 3932	4640	2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe	88
PID 4640 wrote to memory of 3932	4640	2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_561524fa4cff97047fd0c9a09917e904_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4640
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3932

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
54KB

MD5
52f845fdd8162df2e3b804df5ad5f8db

SHA1
5b2692be9f9ab1eb475ccdb6759f1391ec149e67

SHA256
4086db8b1518e704fa8723b047caba4da307f6819140665239332ab6a02d6f3a

SHA512
d75a415a99020e618c72b8d81a95f2e5055bcb0ab2e28329f5dc2cb593fe2abc0609da3712b005585d692e2d0a377d75e7b8509fc4307bf2ef1863ee96e6d887

Download Submit
memory/3932-19-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/3932-23-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4640-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4640-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4640-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4640-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4640-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download