3dda3fd03b7058526d9a6fa6c942161ba1265355bd6c7cf459a16c6d87d3691a

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 00:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe
Size

41KB
MD5

f719f459179079e66e435fad3820f73e
SHA1

3e04ce1faab63656647bcb1016ee97a4641eb3cc
SHA256

3dda3fd03b7058526d9a6fa6c942161ba1265355bd6c7cf459a16c6d87d3691a
SHA512

946d702748169ca11be3af8250f8ede4cc5a219b1e61db3546eefabf59200cabacd45e392ca972e8ec41434934b11361729155d0d50425e7f5a287a80748528a
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwN:bA6YcA/X6G0W143QN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000233e8-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4440	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 752 wrote to memory of 4440	752	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	82
PID 752 wrote to memory of 4440	752	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	82
PID 752 wrote to memory of 4440	752	2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_f719f459179079e66e435fad3820f73e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4440

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\hasfj.exe

Filesize
41KB

MD5
5243c918e04ed9bfaa8f4bfcbe10336c

SHA1
90c6745f51b3c2cc4382c7e80addf2ff086f7863

SHA256
abb9b30008709967d2931feffea52aea137604c88cbcfc960ee6a6d40a75b1a0

SHA512
f04967c11b456d80fd02ac62974a1db02ef2c465c4b62b13cba7759b3aeb44ff323a253ea429ed56e88a67ff4dbdcff3bbfa4da6d04d8b247a9deb66920a14e2

Download Submit
memory/752-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/752-1-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/752-8-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4440-17-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4440-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download