a75a0a0cb7dae360495ed98558ea0b2e95d6d1e2ae06d29f962d83a51067477e

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
22/04/2024, 04:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe
Size

35KB
MD5

3fc6e36dc4d8c785f5154e6171ed313d
SHA1

874e12c6f240026522c5b452e1240d1b8700f80d
SHA256

a75a0a0cb7dae360495ed98558ea0b2e95d6d1e2ae06d29f962d83a51067477e
SHA512

8c045a1e3c74b7bbd71061534305769efd12f8524f1c75024316033794e99fbfba3e8f86956cda95d079596ebdca587a871462647a8f6bff403854e658522510
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+uspNy:bAvJCYOOvbRPDEgXRc+BAILYy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023270-12.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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
4948	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 3572 wrote to memory of 4948	3572	2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe	86
PID 3572 wrote to memory of 4948	3572	2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe	86
PID 3572 wrote to memory of 4948	3572	2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_3fc6e36dc4d8c785f5154e6171ed313d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3572
- 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:4948

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\demka.exe

Filesize
35KB

MD5
0519f9eceb3625a49d82b2ff5ed6e53d

SHA1
73716f2ef7c2d1a81d4f5b22195da544c5339855

SHA256
7bf46f6dcc0941e0b8811ad84ebcde391968fead314816556a7fee8d77a96e6c

SHA512
6cfe2c6aa375f0cc6b42390da0cfd608284d102e7e7f058404aad38c244eb9d8f562932ff2ba5bb56eb40a9bb05256eb895a8e5b298d7a1f2caea72c492b8c34

Download Submit
memory/3572-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3572-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3572-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4948-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download