900b81f2dcac460be71dbd3014b792905b8c36afcf6f163b839f03daee5a4962

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
21/03/2025, 08:05

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General

Target

2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe
Size

52KB
MD5

cad3df149852706b1e323dfd5479aa5e
SHA1

d23168ec1c5a776eba015e989e75feb794ade589
SHA256

900b81f2dcac460be71dbd3014b792905b8c36afcf6f163b839f03daee5a4962
SHA512

30b5cbeb28603587da140f3aca7a93b9c0bb6cb1eb5effd96c83dcfc1729a3bfa345d6b6ea4f76ce282cfcf3f86acbc4818dc10ef8828da9ad04152564300403
SSDEEP

768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lKK:bc/y2ikF0+B2qK8PKK

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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3240	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	2025-03-21_cad3df149852706b1e323dfd5479aa5e_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 1844 wrote to memory of 3240	1844	2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe	85
PID 1844 wrote to memory of 3240	1844	2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe	85
PID 1844 wrote to memory of 3240	1844	2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-21_cad3df149852706b1e323dfd5479aa5e_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1844
- 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:3240

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

Replay Monitor

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Downloads

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

Filesize
52KB

MD5
0de6549b589eb2247b2e3507d357cb14

SHA1
708e666a8d88fa1769c7ceb54220b51409bd7437

SHA256
d3144f95c20a3aa7f05d9d80ded64236171e39b44047d246a76a34572216a57f

SHA512
209037730015bb8ebc53e220fdd14530e978817e8b880ef0a5ff084f3fca020ebf64e07d4cba5ef6b0bc270939b4fdbbb92af12c4c0d7bccfe829253d33718cb

Download Submit
memory/1844-0-0x00000000022B0000-0x00000000022B6000-memory.dmp

Filesize
24KB

Download
memory/1844-1-0x00000000022B0000-0x00000000022B6000-memory.dmp

Filesize
24KB

Download
memory/1844-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3240-25-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download