5a74089467600c4660f559cfc9669dae9880f1642c736de356c124733f1d4b84

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
08-06-2024 08:39

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General

Target

2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe
Size

97KB
MD5

eae1f8cc0d279f3aa10fcbdf86e7d181
SHA1

f8fe47dcdfb0ee9e80dc0ec26702c1dea40ef723
SHA256

5a74089467600c4660f559cfc9669dae9880f1642c736de356c124733f1d4b84
SHA512

b8c8903a9cad5a092eb42ce010df46460baa83efaf7fc8bf80a799cd17f4ef1fb9940fa8e8af04f9fbda791e952c234e01affe878cbce1fe048d41d3ad352f93
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpE1:V6a+pOtEvwDpjtzd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-11.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-11.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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4280	asih.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 1700 wrote to memory of 4280	1700	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	81
PID 1700 wrote to memory of 4280	1700	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	81
PID 1700 wrote to memory of 4280	1700	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4280

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\asih.exe

Filesize
97KB

MD5
8567a57cc5216b328e364144fd547204

SHA1
1a9de64e1c60999cc23dc269688e525e906e6bd6

SHA256
9cdd34ed7d8797bebab763515e6e66bbaf3d836f4973f439f8d1c3e825e690a6

SHA512
055de97f08e72adcd9ebc4ae51a55209fa9ef8a626d79175fb19aa2a5aded9d9d94581bf028d8f5f86e3c5850d35af30900f148fb83934676fcd86559923c8a1

Download Submit
memory/1700-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1700-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1700-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4280-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4280-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download