4ed7e001055083f42011d5f4244ebd406af5ee22d7f8837dd4ac4e5e00586bb3

Analysis

max time kernel
145s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 23:31

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General

Target

2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe
Size

39KB
MD5

ae2b9ace0ac16f0c19beb779c41c0d54
SHA1

f4c2fc92b289205e8c56f464e346935ff80f11cd
SHA256

4ed7e001055083f42011d5f4244ebd406af5ee22d7f8837dd4ac4e5e00586bb3
SHA512

a1ceab8f277e2a59e0c9748e5e343941d9f178006a76337f97256a98a2fb2775a65cb10f1cfc21b13511c97eca8b1de2aab219d2327f95cb9dee503c90448720
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+ih:bAvJCYOOvbRPDEgXrNekd7l94i3p+F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f5-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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	2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	demka.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 4184 wrote to memory of 1424	4184	2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe	85
PID 4184 wrote to memory of 1424	4184	2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe	85
PID 4184 wrote to memory of 1424	4184	2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_ae2b9ace0ac16f0c19beb779c41c0d54_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1424

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe

Filesize
39KB

MD5
ee0c0f1c9fcce70973eb07a7148cf264

SHA1
b1e937d1ecafa14e0e29dfcc138efbadfaf7e956

SHA256
a54c6efc18fdc46c2574d6819b9081553f14e3629fbf4e6602023037896a4bda

SHA512
c71484af7868561d11cb5e2a03d13032ad2be6e602cdd44378a0ac9fb8b40a0a387c3ec7fad73068db51ca2ad0dc655ea9f7a22659187b6a6c47de7447c7f4ed

Download Submit
memory/1424-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4184-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4184-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/4184-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download