da2cf8f0ddd44f3df673054154c6301d87af5945b4127db57804ca1a471ad10e

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 06:52

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General

Target

2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe
Size

45KB
MD5

db25c510831cdcf5c2ead65919fe99b1
SHA1

0665e43a0cb82db951789d83cd397fbf915e879b
SHA256

da2cf8f0ddd44f3df673054154c6301d87af5945b4127db57804ca1a471ad10e
SHA512

9630882bf805e75f78f632c038b7521948675cacaf41bf8c1e135e6681b5c0e2eeb60755111c60a83dcec81c4138b42fb7f28341b7128958fa14cc6b72d6c3f5
SSDEEP

768:btB9g/WItCSsAGjX7e9N0hunrknljKrCZ:btB9g/xtCSKqf1rksrS

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3564	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	gewos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 3564	4276	2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe	84
PID 4276 wrote to memory of 3564	4276	2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe	84
PID 4276 wrote to memory of 3564	4276	2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_db25c510831cdcf5c2ead65919fe99b1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4276
- 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:3564

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
45KB

MD5
c44cf2b18bcb34670731d52ba2dd8c35

SHA1
234c20137d3e6ecf619c289c05c9525719d1a4fc

SHA256
c6e6c00a0ea01a109820c0ca70531670b76b84a9d3c5ad111e40cb0d03e45d26

SHA512
b2bb7179e3c1c5e88034ffd2eab0f750c437ad7457b7987336db6d691a1a24430fcd943270027a0a9d2dc9936e8a59c0b84bdc602d9cfdbfcf6e01ad06d9df25

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

Filesize
184B

MD5
bfe1b02959492484fdfafd09ef7ae40f

SHA1
44b0b9452c05c4dc4517603a8ce331463b3cac77

SHA256
01ec08bf13a0242907f5765bf481aa2cffac0b01a9a82a8419762618d8f05a98

SHA512
0bdd62f264a2d97520509f0afc58f3c88c368709cf88b477fa75d674b6224ad2758d7827a8bca4136d2861c5b96505889e527ce5ddfe5c0feeb676f634bd42d5

Download Submit
memory/3564-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4276-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4276-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4276-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download