387ffb3545f2ae7e13149bb50177bf1b688b7ded245b595a4e62bb45b8913ef2

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2024 05:31

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General

Target

2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe
Size

127KB
MD5

229d8cc8a214be9d579609ab90b06e6d
SHA1

8f5b839b8909f8ebe344e44cef3eda0854c49829
SHA256

387ffb3545f2ae7e13149bb50177bf1b688b7ded245b595a4e62bb45b8913ef2
SHA512

a248c461ff41ee03dae31710c7759a207f1a39339e0abbabd360460fa61210f8921a9e9b5c59a7854bfc10967467eed8e1a496dd87ee8ef648d9cfd53e7c9811
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBp3U:vCA9OtEvwDpjo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	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 3520 wrote to memory of 5048	3520	2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe	90
PID 3520 wrote to memory of 5048	3520	2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe	90
PID 3520 wrote to memory of 5048	3520	2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_229d8cc8a214be9d579609ab90b06e6d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:5048

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
127KB

MD5
127eae4432206bcc6ce0f91ed6420017

SHA1
789ad182626570979065b2fc29766e0e24140315

SHA256
aa99d95bd70853ffe05b8eeff281d00ec6a4f766eabfdd4de641eae6f9cba212

SHA512
323f66a149e1378767bd376f95d528a82cfe34b9cca1d421d9651d25e60e1e231455254df9df7f81287c2af7bac1e8a0b3dd4936fac4c517351a4c1a57efbd64

Download Submit
memory/3520-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3520-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3520-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/5048-18-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/5048-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download