27c5fd48da2ebc81ff9a466ea648c35b4013428bf80f31de5e8bb73af3df03cb

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 03:13

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General

Target

2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe
Size

46KB
MD5

b941e775587787950f2a8ff45e4a644c
SHA1

71e309dbc78ec39af98b90eaf731d974d59aface
SHA256

27c5fd48da2ebc81ff9a466ea648c35b4013428bf80f31de5e8bb73af3df03cb
SHA512

2ba6d69bf036034bcb77917bac8c8cd23c620472204d9ae9c30d07ce15f4cf9736f6180be558cfbf3f64b856dd3ad925995324d02c60f479e7bcaeaa3a1509a2
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zk:bF/y2lFizbR9Xwzk

Score

7^/10

discovery

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
384	rewok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 384	1772	2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe	86
PID 1772 wrote to memory of 384	1772	2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe	86
PID 1772 wrote to memory of 384	1772	2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:384

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
46KB

MD5
cb9a6a6ccab5108a7ef8e6f608c89127

SHA1
13ce33fe6d820c091400dd5002c49d6e21690840

SHA256
cbb04cccc31d8b6105329f30cfac9dce0a8280c24dd85c5b5490a9e34e15271d

SHA512
b6128b6f682a57b4353e68ae1a405bf483b4c1cd63ca1c6d6b4e60a28b699433bea52e6f20176b5ab9425fa12e67630ec7a10de5df5bea3752da2a31934a296b

Download Submit
memory/384-25-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download
memory/1772-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/1772-1-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/1772-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download