114095ab6fd96d9e12caaf4852b1e4d6fd301995a313a7d9a941c2b464aaf441

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/02/2024, 06:39

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General

Target

2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe
Size

36KB
MD5

83027fc50dfab16b3edc6b871060870a
SHA1

d0fd37241ad976edf25e39827ed9cac48e6afc6b
SHA256

114095ab6fd96d9e12caaf4852b1e4d6fd301995a313a7d9a941c2b464aaf441
SHA512

f01350cc3df0398ce9843371522b1038f2cf8d360564c1966c76f762f226a448f44bbdd84c2eeba890a7b85e876ed70348c7649cfcbba38c46941e3e006c69a3
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYzMAZ+x:vj+jsMQMOtEvwDpj5HcSYPu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ff-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ff-12.dat	CryptoLocker_set1

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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
460	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 2472 wrote to memory of 460	2472	2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe	90
PID 2472 wrote to memory of 460	2472	2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe	90
PID 2472 wrote to memory of 460	2472	2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_83027fc50dfab16b3edc6b871060870a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2472
- 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:460

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
36KB

MD5
acf602cf53ff875c476f15f4052a2638

SHA1
89e97a93a5234a56b770267ccf479a17b361bee7

SHA256
005d73afa07656129502524722a7b51fe926ddfbf59b08fe01f01a156337e2aa

SHA512
f0b24902c5b074748b956d0bf27b573601748a5a27053fdd7f5b241543186bf8a0e95cb94fef5c61caf19e4dd0e487e9e7b773853e4c62a93b7958dca313304e

Download Submit
memory/460-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/460-19-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/2472-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2472-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2472-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download