93c790b92459fc2fbf8a3115b6f244e7463a1fb253c4b4fd5671252e59287d48

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
03/10/2024, 02:39

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General

Target

2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe
Size

77KB
MD5

a8c3aab91fb811ade80e477b4fbc3613
SHA1

bc6ce49bc52f26fe2908df74244b09e3c54064aa
SHA256

93c790b92459fc2fbf8a3115b6f244e7463a1fb253c4b4fd5671252e59287d48
SHA512

82d69185964728adf5ca7077ab4544a79d7b26df0f6670fb540cf8f5e2177d107eeec630f34e9afdbbff14cc6fb13a5b05ac45b09024c882b8f261586eb0b7db
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsn:X6a+SOtEvwDpjBZYvQd2o

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
548	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	2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 548	1192	2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe	82
PID 1192 wrote to memory of 548	1192	2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe	82
PID 1192 wrote to memory of 548	1192	2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_a8c3aab91fb811ade80e477b4fbc3613_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1192
- 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:548

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
77KB

MD5
b4b4e7813822be4ae992d6e8e6bd8919

SHA1
868ed87d9948c72aef6cbb161bbb235edade91ee

SHA256
4f13fb44478116201a3f572c84ba128c43e381ab9aff61672baabdba7447ffa1

SHA512
fc87f122c74c481cf02002a488b6c7c6173d73c32a87b35aa399a290823807c77367879f9f49d123e69446fae7f31611d7042563620cdc15762cf88111f58f60

Download Submit
memory/548-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/548-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1192-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/1192-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download