9dbef0f33a320e1215d3521346ee9cb6f7beb1a19083567ba3ee036b260ef8bd

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:27

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General

Target

2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe
Size

72KB
MD5

639fe7734941d7a4e21d4059b4240951
SHA1

9ffcba76c51173f07ff82911db7210ca0584ef22
SHA256

9dbef0f33a320e1215d3521346ee9cb6f7beb1a19083567ba3ee036b260ef8bd
SHA512

8002dd03975b8fd3bae36b286f7e8b976ce51b87e3d6ebd8946ad2a2b1f0abddedf8584ebf75f7dfb13cc3a8b5060e8868795e38461c867c9c3153beef2fdaf0
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO5k:DW60sllyWOtEvwDpjwF85V

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
832	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	2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 832	4396	2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe	81
PID 4396 wrote to memory of 832	4396	2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe	81
PID 4396 wrote to memory of 832	4396	2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_639fe7734941d7a4e21d4059b4240951_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396
- 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:832

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\asih.exe

Filesize
73KB

MD5
854078af085a64573a4719c3cd166846

SHA1
4d8822e408f6cf4d652cfc6b4f429349b6ed1721

SHA256
fb6adb6b51fd11d8c8595ded6728189eb80cd3b6d2ac00f1ddaf145e6759f62a

SHA512
582381270f161c527c44a423f9b75e694d83267ff83f27d3d85c1b5649338585967761c6c768988aa408597d1f0f4a7f1ef4d25369a958b278c70323fbd5f59e

Download Submit
memory/832-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/832-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/832-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4396-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4396-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4396-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4396-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4396-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download