6b19c3cc6f263650a59225bd5b1a5c16b835b9069f70dd6e36286d05102ba7da

Analysis

max time kernel
150s
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
05/04/2024, 19:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe
Size

388KB
MD5

6ff8dd74855fc2b3ef3b9ae4f8cc507f
SHA1

1ad37e8933186f6f724efcc141a84555f9f7fd1a
SHA256

6b19c3cc6f263650a59225bd5b1a5c16b835b9069f70dd6e36286d05102ba7da
SHA512

9628371a742be3529a1119ab551286df4f057e452a007718c88cada3583a819d554164c204cd722ebf15c89a5e0c99b715a3e06a4edc1dbc17eb64deaa9dc425
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXi:nnOflT/ZFIjBz3xjTxynGUOUhXi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023220-12.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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2360	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 1216 wrote to memory of 2360	1216	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	87
PID 1216 wrote to memory of 2360	1216	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	87
PID 1216 wrote to memory of 2360	1216	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2360

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
388KB

MD5
a659c8778788e038653ddbf33ed3ad13

SHA1
1c83b0928babecccbfdc18e75c19db881e0e508a

SHA256
ebdbb7ab8f0128887249705debeaf6d0f6a6ab797f9086abcfeead8712505b3b

SHA512
0f51ca0705b35d310aa255280664ab9cde01e5fcc428d26fa3da7997e21b2cac7393716f447f0e6e8aae3e9141f9b11838ace7c2a72ffc47c304c396af3351cd

Download Submit
memory/1216-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1216-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1216-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2360-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2360-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download