daa40369380ba510980c9b74a47a2384da07051d63a96ef94f0169f0ab155e8c

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2024 23:15

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General

Target

2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe
Size

27KB
MD5

dd4fa00f2c9934182cbf04138b3dbf43
SHA1

6ca8b7431e0657079dbfc318d4391a5ccdfb6b19
SHA256

daa40369380ba510980c9b74a47a2384da07051d63a96ef94f0169f0ab155e8c
SHA512

9ff60164f570d5834c9b3851f103f7d045f2743097fd86da0fcf32b677eecb31a79fc743f463082ecce19abd39a77cda657a7953f9bae71b876b7e0c8c3cc823
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjImPhCDws:ZzFbxmLPWQMOtEvwDpj3Ph/s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023146-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3920	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 4352 wrote to memory of 3920	4352	2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe	84
PID 4352 wrote to memory of 3920	4352	2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe	84
PID 4352 wrote to memory of 3920	4352	2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_dd4fa00f2c9934182cbf04138b3dbf43_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3920

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
27KB

MD5
6a32963ce36471a787dd24a1c435e38a

SHA1
5034d3489efb9c5cff1a423f9400e7920401bb05

SHA256
571a570fb88981a21aa35c67939f976b0af57e7ee94a13ce06aedb409982faae

SHA512
0a21bfa805c0eaf531910ae82533044e20409a7b207c5cca7cf58b38befc5def36026b03bad0842eae28a5c63b3158b9556a8b4bbd8b1cd1151f716e2acef2d8

Download Submit
memory/3920-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3920-19-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/3920-18-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3920-25-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4352-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4352-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4352-2-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download