9411c5ff8adcc8bcd5725f54e99aef652b2ffb9628e9e6bfb57c0298d8b86f0f

Analysis

max time kernel
89s
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
11-02-2024 20:33

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General

Target

2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe
Size

33KB
MD5

7f3fc8e30adb35ca1adc9893c2b132be
SHA1

4b4912646b36d9916e256587911c722b85b221b8
SHA256

9411c5ff8adcc8bcd5725f54e99aef652b2ffb9628e9e6bfb57c0298d8b86f0f
SHA512

e636f1060afe3c8312d9cdee2536ee2d4cd42bc6b4df37628df4d7c44cdbf686821b781e5447a866bd53285cdc94926d0dc7b3e7cc6195f7f5511415baf8c26d
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960g:bAvJCYOOvbRPDEgXRc3SSz3g

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1060	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 640 wrote to memory of 1060	640	2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe	30
PID 640 wrote to memory of 1060	640	2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe	30
PID 640 wrote to memory of 1060	640	2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-11_7f3fc8e30adb35ca1adc9893c2b132be_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:640
- 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:1060

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
33KB

MD5
88cba768defc66bd893f19c1363e3dc8

SHA1
44b9f5f31bb03b40e86077daddf9415f54ce9aad

SHA256
03b99ca860437ef5de7b9cf73f2bf13409688e2d4e1691d87c105d887ba4f80c

SHA512
bd6f086fbae9614af15f5f57096b4c1eb06e4513dc6de0300bfccecfd5ad30bafba4253fa4ae9c381476ebe0c1655136dc3156903ec42850d83afa18b27d5a30

Download Submit
memory/640-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/640-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/640-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/1060-25-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download