addbad17f2770f8e329f562af0a1722de029d8098aa3fb4fadeacc9ba6f535f0

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 13:30

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General

Target

2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe
Size

30KB
MD5

9d6f15d53abf434fa5093f3dc850b5a9
SHA1

a1b76c32dac9a6d354987c708281a71e3a71809e
SHA256

addbad17f2770f8e329f562af0a1722de029d8098aa3fb4fadeacc9ba6f535f0
SHA512

e429d4c8b7e83200a7cea4501d08203a6dc254f517cdffb601a3a0395d43130b71b61af6ddb8704396c39e93818dcce42a3deee99333b098131234a57f5c6559
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ5STV9Zv:bA74zYcgT/Ekd0ryfjQRSnWV9B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023151-12.dat	CryptoLocker_rule2

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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1820	hasfj.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 3332 wrote to memory of 1820	3332	2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe	85
PID 3332 wrote to memory of 1820	3332	2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe	85
PID 3332 wrote to memory of 1820	3332	2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_9d6f15d53abf434fa5093f3dc850b5a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3332
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1820

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\hasfj.exe

Filesize
30KB

MD5
9ee846b81b6d65578decdde69d1f0c80

SHA1
3487a5f75e39739623d2b1a49327cdadadf78ea2

SHA256
8d3084c89705a6880e5926780c83f9cb85afa6a44d43c09d67a8b191587495fb

SHA512
2a1a0c52ca9ef54849a95694e73774d026f2970a049ae7d8070128995e46894e46e6bebc8624946cbaa7d174f8109b4103431595276b5d1a8817ccfa9570b520

Download Submit
memory/1820-17-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1820-23-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3332-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3332-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3332-2-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download