ac7a052d4cbb10a3f1eb4850ccfddf64dbabe997a3be47305c196d4878608942

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2024 17:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe
Size

386KB
MD5

8b296bb99487207d8a229c52f69d7367
SHA1

baa51b3c03ec65585e8760463d555872400fd3ed
SHA256

ac7a052d4cbb10a3f1eb4850ccfddf64dbabe997a3be47305c196d4878608942
SHA512

2bb46c4c66d530191029076d66e504c3df17cce207623e79ad5714a88f472896d2b4bbc52277c209e5c0f126bcf6e5f0f0e75a9a16b3530cf5cec8c4278b4121
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX0:nnOflT/ZFIjBz3xjTxynGUOUhX0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4156	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 2520 wrote to memory of 4156	2520	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	89
PID 2520 wrote to memory of 4156	2520	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	89
PID 2520 wrote to memory of 4156	2520	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4156

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
386KB

MD5
d9465d9f0f3c67232c09b4168a0fd74a

SHA1
132deec0972e02900c24d81b2962742690ededb3

SHA256
11dd9d95e3af394074c3755ce3d732d7febf2d08989b5b81943d2d9435167a4e

SHA512
9c69a2e8392004ba28567be1f3c9089fa2ddc419e1c3c4ce4ac21b6f468a2db7279ccbd3f5d095aba9c5859d37a665392fc404ada1a5c1ecd19775d6fdf0ab0d

Download Submit
memory/2520-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2520-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2520-2-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download