03f2412e271910165ca33ad80a32affb61d319f017fd86a23b500b166d51e7c9

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/09/2024, 16:32

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General

Target

2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe
Size

44KB
MD5

621445eb31c3494a8567c7aaaf083e79
SHA1

7982331ccc9ecd26b6adb9d179450a97082818ec
SHA256

03f2412e271910165ca33ad80a32affb61d319f017fd86a23b500b166d51e7c9
SHA512

7ee29fb9088204b12e1379e2c21f638a399f61cdfac5828bb252e3b7bd9574f9c46cc76f5075c01b4ab2a49782df8f36171b277ffb25a954485b0817755d520a
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAIie0LHx:bCDOw9aMDooc+vAlXx

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	2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
116	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	2024-09-05_621445eb31c3494a8567c7aaaf083e79_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 3812 wrote to memory of 116	3812	2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe	87
PID 3812 wrote to memory of 116	3812	2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe	87
PID 3812 wrote to memory of 116	3812	2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_621445eb31c3494a8567c7aaaf083e79_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3812
- 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:116

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
44KB

MD5
5208f17c3a7eb5ed4883bb47828bbb72

SHA1
5c346719ecda1aa012cf538183323741d96f7fc5

SHA256
e2261d83e2b53bd8e7ad8861f92cc8652f0f79ef77a4fb1f8f1518d1abc752cd

SHA512
3b13cb5c70c032f6d5f8c3b49f7cee10a08c54497dd2f4a55e1e9c0b84cdb369f555e054dad8fa1852eb69cb2312b0f60ae702a3cdf75859ccfb967b5ebf09c4

Download Submit
memory/116-19-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/116-20-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/116-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3812-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3812-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/3812-1-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/3812-3-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/3812-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download