396968fa258395e674092ecaa41b1fd0e3358e3acb26c35fa4525d7cb6d46096

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 13:22

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General

Target

2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe
Size

46KB
MD5

1fce33c15d15e7acafccfc088ca39e0c
SHA1

e554ac7cb9eaedbada727bc99d2214e192f9e93a
SHA256

396968fa258395e674092ecaa41b1fd0e3358e3acb26c35fa4525d7cb6d46096
SHA512

01d6b0a8693b13af1b43511fe7e53725d9f26a1c8a1524457f18fdd3153c6c269c45d9080c24a2f3cb631677ee9ee51107c70b34180e256c05c362c0fbf398c8
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zu:bF/y2lFizbR9Xwzu

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	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	2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_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 2924 wrote to memory of 4832	2924	2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe	87
PID 2924 wrote to memory of 4832	2924	2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe	87
PID 2924 wrote to memory of 4832	2924	2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-04_1fce33c15d15e7acafccfc088ca39e0c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2924
- 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:4832

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
12a471506879ccc5d3925737b90af548

SHA1
c666704be9f4562b3f8e8179bc32ed3b2662d404

SHA256
3b986aa2a63bd8fda89f851916b49eded6f848c68f6aea9891b6b8039c9e4494

SHA512
596e8725db5fc414183cf3cfd6dc727e5950c4db4c2459f7c9590bea99f0fe36a970eec4b67495edbd593cd27b41303a644cb62d29a380d867fc1f71ce900179

Download Submit
memory/2924-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2924-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4832-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download