8a9bd6e8f8dd9cabef0cd991117fcb23500688c8abaad229bdeb304539862d52

Analysis

max time kernel
150s
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
02-10-2024 01:23

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General

Target

2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe
Size

46KB
MD5

025d7e01d91f46f831a75f951ba40972
SHA1

e473019c27f73e5300b3c193eee022fbeded63b7
SHA256

8a9bd6e8f8dd9cabef0cd991117fcb23500688c8abaad229bdeb304539862d52
SHA512

1e79f8f78d56dd75a8132cd72e3e46b10b0644ebbde18c1fb72cadb55892da443d37e601c65fddfc93f367e3af3b64b014e184e1dff796f090c5cc5a8a71ff44
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAIie0LHumRy:bCDOw9aMDooc+vAlXnRy

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4264	lossy.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	2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 4264	2572	2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe	82
PID 2572 wrote to memory of 4264	2572	2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe	82
PID 2572 wrote to memory of 4264	2572	2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_025d7e01d91f46f831a75f951ba40972_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4264

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\lossy.exe

Filesize
46KB

MD5
177ff6c1dd4710ed48a0965393bea611

SHA1
9f81a7829c5b4e947142a9dfcbc0f0ac47266e47

SHA256
e708becbe5a7d7ef9c56c39497460ff3c86642efa3bf9c1a3bc195a3ccc1b49d

SHA512
4b7747c67b274557e89f02d0b3146052bc079af9098674cd5008204734b3faee0faa994a38a2b0337f0d25baf8b7ddb81947f4c1fc5b53902edb0a681587dabb

Download Submit
memory/2572-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2572-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/2572-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/2572-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/2572-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4264-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4264-19-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/4264-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download