e1a9999c6ac31caa1c159ee8b5a21c99b26e12568c3699799bd8e5c40786ef4e

Analysis

max time kernel
93s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 15:21

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General

Target

2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe
Size

40KB
MD5

881d4b0e91b8b1636314a16c531de30d
SHA1

9dcef4bc488e8924aa1624de2c2bf57d0352a110
SHA256

e1a9999c6ac31caa1c159ee8b5a21c99b26e12568c3699799bd8e5c40786ef4e
SHA512

476796356f4d6c3069537306c8bd91591856890c4740be65cc0b5688b9fdceb69fec7d6dc3d0842635ba377714be335ea36c1b4314e3f81215602f34f9052e0f
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+iS:bAvJCYOOvbRPDEgXrNekd7l94i3p+kuG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023249-12.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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	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 3024 wrote to memory of 4664	3024	2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe	86
PID 3024 wrote to memory of 4664	3024	2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe	86
PID 3024 wrote to memory of 4664	3024	2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_881d4b0e91b8b1636314a16c531de30d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3024
- 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:4664

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
41KB

MD5
b926b08addf312de3cb3ffb749dddfc6

SHA1
fde6d6aa35d891f512874ccf194f5fa5028b1407

SHA256
5be540a40ee88cf403d788883f3605cb09d9fd80e8018056c0faa4a66f80dbc7

SHA512
d94f00a600578ea4d19885cb525561947863028e7acc695899bc2b68952800b9fa0f061ad97c44e6010b6aeef95c7127ed4fae6a8a3135eff9eecaf23ead23e9

Download Submit
memory/3024-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/3024-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/3024-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4664-22-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download