712de48b6ec048bfa3d6a51a7fea410c5a5dd8f51f034a2b5e6402bbdc3b2d32

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 13:39

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General

Target

2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe
Size

37KB
MD5

8e3f335b1ad65dc50e0942ba80bf92d6
SHA1

360fb3345857ffe374081e84fdf9429a469eba5c
SHA256

712de48b6ec048bfa3d6a51a7fea410c5a5dd8f51f034a2b5e6402bbdc3b2d32
SHA512

516dffc725d9ae4eec2a5b5ba48b6e25947eb48f82d25cb1edc19b6fbedf9b56afb1ffa74e55c49cfbc8b0d76b7625833eb5203d11b75d64c7e2a61945dc40f2
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAYR:ZzFbxmLPWQMOtEvwDpjLeJAYR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-13.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3824	misid.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 644 wrote to memory of 3824	644	2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe	87
PID 644 wrote to memory of 3824	644	2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe	87
PID 644 wrote to memory of 3824	644	2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_8e3f335b1ad65dc50e0942ba80bf92d6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:644
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3824

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\misid.exe

Filesize
37KB

MD5
fb49c10d6a2ded1d3986247d64926770

SHA1
ca98f1440b685d560eaf60ee4831ed2f39083a32

SHA256
35780ddac643e150f61f6937049a950ab336a96ede6cae7f57ac371aa7ade005

SHA512
c929ca8814da6d2b669f506ae44d3304ae8426793cd36e44b0060c11f1cee0670c95b745e0582c3ab096ac68e7033fd237f7dd5a0da8c4beeaa970e718f0c991

Download Submit
memory/644-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/644-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/644-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/644-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/644-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3824-18-0x0000000000460000-0x00000000004A0000-memory.dmp

Filesize
256KB

Download
memory/3824-20-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3824-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3824-27-0x0000000000460000-0x00000000004A0000-memory.dmp

Filesize
256KB

Download