ee431ed1fa3d654fefe2fcc7144a80a5fc6d373af90f1dfa333ae3250f504a61

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
01/10/2024, 03:28

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General

Target

2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe
Size

48KB
MD5

1751aca91d0e34db216e826896f70a83
SHA1

a81dcc811e425404a9825b2463e3f1e75f76e596
SHA256

ee431ed1fa3d654fefe2fcc7144a80a5fc6d373af90f1dfa333ae3250f504a61
SHA512

c6f39a409f90def4393ce43f954f23659b8dc93c4549bf1d967505238d39adff234bebcac11551383fa539fa27973b19de711006933d5652394cd72ae5775a28
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPll7:P6QFElP6k+MRQMOtEvwDpjBQpVX8p

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2336	asih.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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 2336	3980	2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe	82
PID 3980 wrote to memory of 2336	3980	2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe	82
PID 3980 wrote to memory of 2336	3980	2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-01_1751aca91d0e34db216e826896f70a83_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2336

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\asih.exe

Filesize
48KB

MD5
ee7aa0afed4950550c75e7ed5464c301

SHA1
8b9fdd575c687f726977061018f770497aa72cb4

SHA256
6c7cf82a3e072a337f2ac62c0044638d73c0af82a23cd8edae8de6412d592f55

SHA512
1f7478aeee5735973ee9031a217c99d527c3c8b3a94fd58cbb91dda0c38c3efb9379c46d708b7d36de73e6753da321d8f88487e23546b3b81d77fa51e96699ee

Download Submit
memory/2336-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2336-20-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/2336-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3980-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3980-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3980-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3980-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/3980-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download