cdefc730452fe0df898cf669aade520558da9cb4d961cf6bb69cbb0114c76529

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
28-09-2024 02:28

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General

Target

2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe
Size

33KB
MD5

6ce96cb6585b0b8679e6d910c4ee6ef1
SHA1

8ba3d093038ba081a7932b7c06dda71a6b65f0f1
SHA256

cdefc730452fe0df898cf669aade520558da9cb4d961cf6bb69cbb0114c76529
SHA512

40f6a6de57adec82bb67bbf27606f840b4570651ec04d5643ab4361e6b805d49ea8521b18bb4bed03706b71f254af674bc3e6862e9012b19dd9c98a9fc01409f
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNwB6Usa:btB9g/WItCSsAGjX7e9NKN

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	gewos.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	2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 2904	4916	2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe	83
PID 4916 wrote to memory of 2904	4916	2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe	83
PID 4916 wrote to memory of 2904	4916	2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_6ce96cb6585b0b8679e6d910c4ee6ef1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4916
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2904

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\gewos.exe

Filesize
33KB

MD5
5da0dfe2a21995fa4c4a910308fd64f2

SHA1
c85d73aa2e4da998f1bf26a8fd79a8e259ed2028

SHA256
f6ad359992a93faccd8a2f5f151d2ae51bde3a44605d2c4a32a31e59765bc601

SHA512
eff33ee9ff6b657675a77bb2490204fd17100279b108a71bc63655a551ca4cab611f6b9b25b6b3cede50b1f394c87fab3d8071773c2f68683e9a1dfc820ebab4

Download Submit
memory/2904-25-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4916-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4916-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4916-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download