4f709a1e7274348f53d2277cd46ef8edb9ff7d57ca014df2e86b7766c750c63b

Analysis

max time kernel
93s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:09

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General

Target

2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe
Size

63KB
MD5

769a740432feee9ea43bccbbf56045e8
SHA1

f4c8afc5d7b0960ce82a4c21f4fe29865ce0ecf2
SHA256

4f709a1e7274348f53d2277cd46ef8edb9ff7d57ca014df2e86b7766c750c63b
SHA512

06634ae2621722ebc9cd2cf8d0ae25e4b35247b7ff93fc97dbe57dc8db549360f6065368c25974aed0760a721e1cfb9ecb308e2f4674661aa9a6eafc210951f9
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnTD:btng54SMLr+/AO/kIhfoKMHda/

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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	gewos.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2444	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	2024-09-05_769a740432feee9ea43bccbbf56045e8_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 668 wrote to memory of 2444	668	2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe	84
PID 668 wrote to memory of 2444	668	2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe	84
PID 668 wrote to memory of 2444	668	2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_769a740432feee9ea43bccbbf56045e8_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:668
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2444

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\gewos.exe

Filesize
63KB

MD5
d5fb3144caf04cbad5db350b1ccc398e

SHA1
98572dd93001f411c71e28b0e7b4c5bf60c825f0

SHA256
d5bfba8048b69b4fcd80ba71a11b1664a33eb7d56218940f4c1f6744fff26006

SHA512
fbed825d482d88b0171fd3fbf4299ff3dd40cd67150ead4a6d801e5c8bd6dc601c4081132e2d32f46bd75c8a5da82cf30965a6aac484fbeb311bfe5f0be6dfd0

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewosik.exe

Filesize
184B

MD5
11d0eb4f38816447919c3dcb477235d2

SHA1
a44c8f3c6c843b72713ba001541d61c52d336afc

SHA256
79a5508f73b12608e9528538bd3a172bfa41f6b5262ebaf460aec675a6b63e80

SHA512
f450b6996e5f503b2a8fd93293b537ea18448b67d4b00b1d695e9b7685c44e00c26d637a53c17dbefff4197b589bc6084774cee08c522114a9af779d6ccca8f3

Download Submit
memory/668-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/668-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/668-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2444-25-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download