2bb28130614325022493a9905adb25a818939b12926701246c40392dfbef338d

Analysis

max time kernel
148s
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
18-01-2024 23:18

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General

Target

2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe
Size

34KB
MD5

bd0d3244b5c2154d75f3ad6d1a9999ef
SHA1

cf1cb88335b28fbf96def44abcc9624fe06be5da
SHA256

2bb28130614325022493a9905adb25a818939b12926701246c40392dfbef338d
SHA512

03e906297027d3fce5e5c26a4918ad123c41bb6bc82e2492a5217a72554d017e35c21d6e62c954409268455e9a3454d4e7fbbb15a1ded0a66b3205ac691f6e23
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lw:bA74zYcgT/Ekd0ryfjPIunqpeNswmv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231ea-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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4352	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 4328 wrote to memory of 4352	4328	2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe	89
PID 4328 wrote to memory of 4352	4328	2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe	89
PID 4328 wrote to memory of 4352	4328	2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_bd0d3244b5c2154d75f3ad6d1a9999ef_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4352

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
34KB

MD5
0bddd06aa0c623d8dd14d5058e7a8823

SHA1
20c7c138dc71f88d81b140d94dec36065da58ade

SHA256
13d764559050465fb0faf67abf9029a0b19846655ecd60641c993a09329034b7

SHA512
f2497dcf53882e9189a4a2577ce154b03284f09baa3d6130cbc248853a34f7f3699e072a3128938e0bc88da5e856a0885471237c217f20dd21b9780d7278ef08

Download Submit
memory/4328-0-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/4328-1-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/4328-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4352-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4352-23-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download