600a47c2d0693ae660692833c3d4976ccae0bccacb694f215c10edb8db1f7402

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24/06/2024, 19:35

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General

Target

2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe
Size

32KB
MD5

b30a7b067ac38a0eae869e9938d6145e
SHA1

201c9dd7f4a6713c1c48c35f870bf2d811e6cb24
SHA256

600a47c2d0693ae660692833c3d4976ccae0bccacb694f215c10edb8db1f7402
SHA512

033e8392564564991c265586092458f2098a6dc73cd8ad1f2275aa822d2cb2ded044bb88c9de6a8f66965b9a5e422100e31e2f3a93fd347bc18596e6506c8c46
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGX/:bG74zYcgT/Ekd0ryfjC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/4644-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000022f51-13.dat	CryptoLocker_rule2
behavioral2/memory/1164-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4644-18-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1164-27-0x0000000008000000-0x000000000800A000-memory.dmp	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1164	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 4644 wrote to memory of 1164	4644	2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe	80
PID 4644 wrote to memory of 1164	4644	2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe	80
PID 4644 wrote to memory of 1164	4644	2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-24_b30a7b067ac38a0eae869e9938d6145e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1164

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
32KB

MD5
4de1fb9e915878ce4a66f43fb9938382

SHA1
2723716f6712eb40e12a9b6c5780fecd817f1041

SHA256
d362cd289afaa1ce9083ea2f675b718e984fea5fbd538deae23c8c9e792cf20d

SHA512
af3fd73791431731068666aba358bec32e4c6be33bd38a22a86fd4110ab8ff4eb211cc9b991882587ae6739187a0456722a8c63b56925a334bd0298efc8d7ab4

Download Submit
memory/1164-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1164-26-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1164-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4644-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4644-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4644-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4644-9-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4644-18-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download