4db5d3e71998a41f0f0f4059aba7cb8ab874d150c73a2ca19583b550fc4169df

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 04:23

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General

Target

2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe
Size

44KB
MD5

c964a8c0c6b09cf7478e50c907619367
SHA1

c6a15f67201a943d521ec6c869c0948a3f1df24a
SHA256

4db5d3e71998a41f0f0f4059aba7cb8ab874d150c73a2ca19583b550fc4169df
SHA512

7bc3a491a79e994cd9d70a63aacce3c121525355e78db185d289e37ad7e25534e24f4a630c1f3a255133958ae90b4d59009fdeb8da5a9e1e9b1d487d91d3bbea
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUkG:bm74zYcgT/EkM0ryfjdG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2004-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000800000002341f-13.dat	CryptoLocker_rule2
behavioral2/memory/2004-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4416-26-0x0000000008000000-0x000000000800D000-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	2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4416	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 2004 wrote to memory of 4416	2004	2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe	83
PID 2004 wrote to memory of 4416	2004	2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe	83
PID 2004 wrote to memory of 4416	2004	2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_c964a8c0c6b09cf7478e50c907619367_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4416

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
44KB

MD5
67f2bb1865365ac2e0f9bb3d6119f88b

SHA1
5c649e2bbe99d6f52ef572ffe16b2b338d9ff3c3

SHA256
247a1eb844439c634c196085a66ed92785bb0a3ced4de8ac3fee88e82fed6134

SHA512
d71e5b2279804140326bec340b6eb6efc5c6c9e072eb8a6addb749ae6735201a29993e2fbb6941f337337b17a972423fba5455932666523645c5dafa327ef93a

Download Submit
memory/2004-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2004-1-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/2004-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2004-9-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/2004-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/4416-19-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4416-25-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4416-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download