32dcbe867194c63a481277b78aa340f0221122be2368936652348ca3223839ba

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 16:24

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General

Target

2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe
Size

44KB
MD5

318937373ae596aa05240a69e2493371
SHA1

55aed17fa4e8494c965dfdd12afc88261c080722
SHA256

32dcbe867194c63a481277b78aa340f0221122be2368936652348ca3223839ba
SHA512

e63d88dd76cf157783026806bc84d65c984e06159f95f4e74f5303a3350c275424e7f384c738dc1d7b4853be0c145c1ef42e314244b1739daa9c182e8b6f5995
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YlPvc:bgGYcA/53GAA6y37Qs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023208-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2368	hasfj.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 4724 wrote to memory of 2368	4724	2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe	89
PID 4724 wrote to memory of 2368	4724	2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe	89
PID 4724 wrote to memory of 2368	4724	2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_318937373ae596aa05240a69e2493371_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4724
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2368

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\hasfj.exe

Filesize
44KB

MD5
3a4fc05a1f359c188f1b0ab064a86039

SHA1
4c80d67fc86af24a6c4b18923753c221d890a423

SHA256
672a596a3c33e4c81f8ede6c71dea9239693d5fa5ed58f61b1a81a2e915fe544

SHA512
630bb73cfdbcbecbbb7fc6ff646297c49c49b433374c037163c7223904fb512e2ea8d20347299bb1907e33bfd83d3a97f8eee8d9d90e251d32852b8df9819876

Download Submit
memory/2368-18-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4724-0-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4724-1-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4724-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download