64f96e9b19a761077f5252c84b6000979c249f18856d95396a9a8c8e98083761

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 14:54

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General

Target

2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe
Size

30KB
MD5

c8088581ccfd265e66acdced8d015468
SHA1

d445f3ecee3ec40154a3655884782ec16f8c7a1c
SHA256

64f96e9b19a761077f5252c84b6000979c249f18856d95396a9a8c8e98083761
SHA512

56c11d404cd144d33512aa32fe9e2f47efa56b7d4c970b5fcfa7a94c543c0b3fc4fd8525194bf944baec71ecddf4a97add4ad43d33c97d4d3c8dae2875649188
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpj6Qvem:ZzFbxmLPWQMOtEvwDpj6a

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023218-13.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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4548	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 1452 wrote to memory of 4548	1452	2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe	88
PID 1452 wrote to memory of 4548	1452	2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe	88
PID 1452 wrote to memory of 4548	1452	2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_c8088581ccfd265e66acdced8d015468_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4548

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
30KB

MD5
14454c35b9d4ec83fa4709e391d05685

SHA1
f83397e6296a9b6f56e6d748b6ec24ef68175b40

SHA256
cc33c7c5c8e8443f943f4dc84b1a172fc2f0f33f8edfaa9b525cd43823f7c43e

SHA512
e9fa6be90d6fd7f7b721955d7eb69b50a3c27014cf61d1eb6ed8d0ae0ece6e5b658b6b56ffc97b8971725e6d2d77d058d8df8f6956f48e7d8d2e5821b56e27c5

Download Submit
memory/1452-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1452-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/1452-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/1452-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1452-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4548-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/4548-20-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4548-22-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download