665c09c82db6ba2c61e91fb3dac2d4d17ecd09141b9b80daa758a766a185c253

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
19-09-2024 06:24

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General

Target

2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe
Size

86KB
MD5

44dd224d3410bfb039e202a9e3de41a3
SHA1

f359556c0baf9acf8cb8247239767504b95b9522
SHA256

665c09c82db6ba2c61e91fb3dac2d4d17ecd09141b9b80daa758a766a185c253
SHA512

e3564e737b918d762ec84a59e16080f84a24b364280eead60566801a0462b30c1d3bf5fe519540f457921b90bc5e57496ebe8a44669c6fa541f4f46b62a53500
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbNcqamvWL:V6a+pOtEvwDpjta

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3676	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_44dd224d3410bfb039e202a9e3de41a3_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 1640 wrote to memory of 3676	1640	2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe	82
PID 1640 wrote to memory of 3676	1640	2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe	82
PID 1640 wrote to memory of 3676	1640	2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_44dd224d3410bfb039e202a9e3de41a3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640
- 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:3676

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
87KB

MD5
ad1f2c62af3f63bd2c6b00ec4280d0e4

SHA1
5e463a892f8a3e2586ddfe979c35331453961b57

SHA256
9393444c51b097daa96ad436b4fffd6419b51af44811e45a90f00360573856d5

SHA512
740fcd76638b10e0e2c473859c6fc05496637333611dd163d356b5d9cd01a1a02e6119b2cfb8786073a8aa4a1e334c73f42557f03bb9b1d416f3def2cb1e8b9e

Download Submit
memory/1640-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1640-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3676-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3676-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download