077feed76f2d5b31d595c951b973fc69e2f05c1f23f14f33563433f06e8843cd

Analysis

max time kernel
133s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2024, 05:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe
Size

33KB
MD5

2bb94e2a4388d135808b8244fa2407da
SHA1

f4b2efd2e112251bb08536f65e3fd17a9c432efb
SHA256

077feed76f2d5b31d595c951b973fc69e2f05c1f23f14f33563433f06e8843cd
SHA512

b33d29230589cbcbbfdd093a025c694d46154f1d796591ec4a7c698d2caa8f27bf7e7c79816ea584574b4b9e20187cd86274d9e7b3706a660e9f1c566a600f32
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznStwIoIQ+dHd9PRc+m:b/yC4GyNM01GuQMNXw2PSjS2uvdHd9lm

Score

7^/10

Malware Config

Signatures

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	2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4420	retln.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 4832 wrote to memory of 4420	4832	2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe	89
PID 4832 wrote to memory of 4420	4832	2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe	89
PID 4832 wrote to memory of 4420	4832	2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_2bb94e2a4388d135808b8244fa2407da_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  PID:4420

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\retln.exe

Filesize
33KB

MD5
3a5f6a6b57a35fd604a34600787bf14c

SHA1
36b1a0074bf01f393541c7b9c4939daec0e4a34f

SHA256
a5536f80bb20252bac022597d03668a3c51be473df3d4187abfd8a76a0daaa40

SHA512
6f98a8de5da38c81542bb99ab1d365985092ac8e4e902910331f5ea1e3e55dd8830ebf51ec27f4ca202635b305034bcc369c598c45ed03f8b4e37d61293c4aa3

Download Submit
memory/4420-21-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4832-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/4832-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/4832-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download