706e54e8adff439c9ee1359d77e24f465a4d9d63ad11deac8bf5572805f49a65

Analysis

max time kernel
137s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 17:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe
Size

40KB
MD5

195afb62e2cd825af31f5213cc881f27
SHA1

ddb9928f8779fb0fa98992c4fdfe3f429940b41d
SHA256

706e54e8adff439c9ee1359d77e24f465a4d9d63ad11deac8bf5572805f49a65
SHA512

c3ba9240207081ba423bd8bfc891d34676f1a97cbc5d2a37b4b7be9245cbb0fda59e55b938a857167565bc8bb46f5b54c63fcaf20031d80b5a5c1f81cd609a61
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhMWKaji:6j+1NMOtEvwDpjrobi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/4432-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023135-13.dat	CryptoLocker_rule2
behavioral2/memory/4432-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1516-53-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/4432-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0007000000023135-13.dat	CryptoLocker_set1
behavioral2/memory/4432-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1516-53-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/4432-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0007000000023135-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4432-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1516-53-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1516	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 4432 wrote to memory of 1516	4432	2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe	83
PID 4432 wrote to memory of 1516	4432	2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe	83
PID 4432 wrote to memory of 1516	4432	2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_195afb62e2cd825af31f5213cc881f27_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4432
- 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:1516

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

Loading Replay Monitor...

Downloads

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

Filesize
40KB

MD5
5c5a322b3862035e0db8d2e2c19d3f7f

SHA1
609d8723fabae7a812b6b778a462240fa8f15bba

SHA256
f55842ecd74913f6c970410e8543170b30e85a58bf6bda6074d16c128c14bc6f

SHA512
f3e3415f491c7d4ef35de3d1a574b6af12c320ccfd559d09db70c370a6d0a0eecc79bb96400f533b2ac6efc1a7dcdabc6d4facaf140448ff203ce330184e4898

Download Submit
memory/1516-19-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1516-53-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4432-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4432-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4432-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4432-3-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/4432-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download