31b06b330d4b58023b1b170307915892cc936563fdc7c1a3e5951302a4b5338a

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-09-2024 21:21

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General

Target

2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe
Size

44KB
MD5

1550d4f8312ced2db720260524940b92
SHA1

7ec9e02da203d93f40d5065cc2014280d861a553
SHA256

31b06b330d4b58023b1b170307915892cc936563fdc7c1a3e5951302a4b5338a
SHA512

07ea8d08364a2535631332a44e736aa64f0ce9d44c07787c9e834e204bbf56d8fa0e238ad9f9811f1e4e35b82700721d0e774a7fb014ae74ab7c50ee501ff449
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrW:bCDOw9aMDooc+vAqjy

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2348	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	2024-09-06_1550d4f8312ced2db720260524940b92_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 3488 wrote to memory of 2348	3488	2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe	85
PID 3488 wrote to memory of 2348	3488	2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe	85
PID 3488 wrote to memory of 2348	3488	2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_1550d4f8312ced2db720260524940b92_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3488
- 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:2348

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\lossy.exe

Filesize
44KB

MD5
9237d17521a959a657d20f709b33a0b8

SHA1
fb251db5f3bcf464293f8d5a29fd9e4553c5edf2

SHA256
ed6d1707313f3ae843ad38a135db789a471c0886759025d2ace4155ffb59189d

SHA512
2129d82f355dcc1ea094fa9fc2f6d0061394263d861d5b6a5de06cd9e6945f56579d7a3d34bb2f813f9a68ac3032929862f5d7633a492c438c8d19e03b3257ef

Download Submit
memory/2348-19-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2348-25-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2348-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3488-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3488-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3488-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/3488-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/3488-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download