63ca844ede2b5f0297ff183d5090afa71376a0cc97ec7fe4b3999351fa9b15b4

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 03:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe
Size

38KB
MD5

0c3119e2655d35d12e7a838bec59276e
SHA1

d7a353cf488e597a29b29868bdcece3d78e12fc2
SHA256

63ca844ede2b5f0297ff183d5090afa71376a0cc97ec7fe4b3999351fa9b15b4
SHA512

9f8df2de03ff82d0ba653d02ed99060f9f3ad96d04eff177ae2a7b653017d4d05a3e99e52d134c9ecb80b336db102e671547e017e2a1236db8ee9dba8558d428
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQLI3JnoehFOE:V6QFElP6n+gMQMOtEvwDpjeJQy1hoE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231b5-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231b5-12.dat	CryptoLocker_set1

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	asih.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 1620 wrote to memory of 3016	1620	2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe	85
PID 1620 wrote to memory of 3016	1620	2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe	85
PID 1620 wrote to memory of 3016	1620	2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_0c3119e2655d35d12e7a838bec59276e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

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\asih.exe

Filesize
39KB

MD5
814b89eb33032aec5a953e20a8876ce4

SHA1
945038030330e5406a4641fde4aa8b724cabb07d

SHA256
dfeac7f1c2921988359e10b615884d315d42bc9842873d9ae7d6ad01b9b4345d

SHA512
ea58fbd83fcef81cdb1b382314f5c50ff1543b6e2627c2ad7622dccd413a910cb1e77478b206a8014c696f76ee8346b82808926cbaef53b9f0055ba75b0556ac

Download Submit
memory/1620-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1620-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1620-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3016-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/3016-19-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download