d02fc02255af25b78355424a72fbd0b7e0387ebbb574fdd054726ee4e7697c0f

Analysis

max time kernel
94s
max time network
123s
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, 12:13

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General

Target

2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe
Size

63KB
MD5

a444daee3a1111cf4f4f01ecf6faa9dd
SHA1

f5d232a902a63095a3bfd69d8e75ba34b2ba3c76
SHA256

d02fc02255af25b78355424a72fbd0b7e0387ebbb574fdd054726ee4e7697c0f
SHA512

6ff2b41bce00e54e0bffcd6aba2e4cb847ef6a03a18361dd87cdbee8cdad498cd8f56eee8e7f65459d50077e25d94f8b17e90555eab49fbe228c54f99a0a4179
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnTR:btng54SMLr+/AO/kIhfoKMHdat

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	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_a444daee3a1111cf4f4f01ecf6faa9dd_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 1788 wrote to memory of 1424	1788	2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe	85
PID 1788 wrote to memory of 1424	1788	2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe	85
PID 1788 wrote to memory of 1424	1788	2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_a444daee3a1111cf4f4f01ecf6faa9dd_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1788
- 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:1424

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
e759489507d7eed5661ecc1d4de232d8

SHA1
0e52ecede958276ecb808f4e132c5c3b74552e66

SHA256
91efb02cbab34bcae4be109881cd61dba6fcdb9cc456a15fd859765f7f8903aa

SHA512
9de61d8e3851eb698c34cb0e35e1b9d9b7cd56999fa2667aa2ea70566b9e8dcfe82ffddc6ea22687f5aee402c3bdefdae54039ab2733a734d7788bac3d2027b0

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

Filesize
184B

MD5
900203dbb2cc962939ac057cd1b389e3

SHA1
7018d7bb36f6cfaea49b9292afeeeecc16df82e8

SHA256
99d76e4a305596a6356e827a3163dd8842ebf9629444e20e3355798a89a98c75

SHA512
3dc07bdf182adc97faf0ff8bfe2fde9845e2d50acf7f3a05fdbd5722755e275ea74b9116bdcac6893ad61866681c68264723b9d104332963241ae6fb436b5512

Download Submit
memory/1424-25-0x0000000002D50000-0x0000000002D56000-memory.dmp

Filesize
24KB

Download
memory/1788-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/1788-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/1788-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download