6e02c7903c0d868e5e15df61e383f5fea70fbe1632d5876cb160a05b3f378d6b

Analysis

max time kernel
154s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 21:27

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General

Target

2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe
Size

45KB
MD5

cf171599c33712c9d9974459532e1b1f
SHA1

ada459e1445488b0a4df3241b8f7cc685fd4ee8d
SHA256

6e02c7903c0d868e5e15df61e383f5fea70fbe1632d5876cb160a05b3f378d6b
SHA512

50cdfcb60fd42209a2935fff7476b97cbd86a8b35bbfb78a4cf322bbbd3825f8f8ee0ef1a68b70dd40f20d6aa67edc16fcbeb5a8cb0482cd651db86ce1a984ec
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvb:bgGYcA/53GAA6y37nbz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4340	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 4720 wrote to memory of 4340	4720	2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe	88
PID 4720 wrote to memory of 4340	4720	2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe	88
PID 4720 wrote to memory of 4340	4720	2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_cf171599c33712c9d9974459532e1b1f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4340

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
45KB

MD5
8ea04a0c252f9ffd8598c391c1b419cd

SHA1
f41c477dc5dcde744b204342347fa5cd535c2473

SHA256
8d079f451ce98ed2a263e4a530e75e6b1fd0cb1ff60c5b0e632c7d2701a7c1fb

SHA512
b26d69e83e1702d40950428767fadabd3fe1adc876cab33a1e9abe8b17de4273337b8d8ae948bdcf8e7d9c82a1d51bd60fcdd37751e9213a3ae0024a95e6711e

Download Submit
memory/4340-18-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4340-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/4720-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4720-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4720-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download