4cb3ac8aa682021b7dfd936dcfcec3baa182d97448767b5a0b656eaa4ca9767f

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 22:48

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General

Target

2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe
Size

385KB
MD5

6b510bf5b07c6e0384c20db9524fad80
SHA1

302395aa040ae4f1d0503b91e836aebf520555b3
SHA256

4cb3ac8aa682021b7dfd936dcfcec3baa182d97448767b5a0b656eaa4ca9767f
SHA512

712e83c44ef264b0db2a28f794ab5318ad392155c766d428df4b3521a1fcd366e3789e4a5db8770f12a951d2c2786c2cfed5ddfe10b2b779b41c6f7cbcc7ce6c
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXo:nnOflT/ZFIjBz3xjTxynGUOUhXo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002315b-12.dat	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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	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 3632 wrote to memory of 5048	3632	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	84
PID 3632 wrote to memory of 5048	3632	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	84
PID 3632 wrote to memory of 5048	3632	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:5048

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
385KB

MD5
fe871d25be7dacaac27abbebcd6b2da1

SHA1
869cc7c9f9a29137246d552ef27559f963e62b83

SHA256
e0756e305056d7485563b95c2920850f538ae05d6a7317da4d30d227561cd87d

SHA512
cac4d0ee04ad2f9865a41ae1f07e4a40fead89379aaf96a9815a2ddbb29e1d176832569aae5eacf7a0d6ca5e011a34c90b1e842eca6d7c7de9c2b00c4fe7fbac

Download Submit
memory/3632-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3632-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3632-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/5048-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/5048-19-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download