e3286c23a2552b6b56d7473ce1d508b026631c6921eb89b224922ad98b6b62ec

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 12:33

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General

Target

2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe
Size

126KB
MD5

741aec8bf86ee4006dfbb47474bb25e5
SHA1

3f1fa831dfc86f27232bf768ddb1bcad7afb42e5
SHA256

e3286c23a2552b6b56d7473ce1d508b026631c6921eb89b224922ad98b6b62ec
SHA512

36108b7fdfdbbb06dc32c67703ac9c2e2c75e6fbe9561e889e484f825bce59e23493a316c8bd1e5afb2fb489b812937cebaa25e313bfd6a986a165a21021bd0c
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpT:vCA9OtEvwDpjP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.dat	CryptoLocker_set1

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1608	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 1524 wrote to memory of 1608	1524	2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe	84
PID 1524 wrote to memory of 1608	1524	2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe	84
PID 1524 wrote to memory of 1608	1524	2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_741aec8bf86ee4006dfbb47474bb25e5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1608

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
126KB

MD5
1ca6bcf4121ac523e55f1a98477976fd

SHA1
8044ef75624a87af097ee2d5c93cb1256b51fa55

SHA256
8f392151a0d961bdea6ed37a7473a42902453be0d8b370b50948284e8a652598

SHA512
7f6c8093ce025931edfd3cf7d5cfa46e4239bd358452bd81d92f60188faac8a13234134e968ce3f4887dbdb6208cc16d738dc58bbe27bb5cf9fc55244399b93a

Download Submit
memory/1524-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1524-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1524-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1608-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1608-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download