d4622697a5775bc1338f291b9577393b9b07409e55bb2d342e6dadb343149865

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
06/09/2024, 02:55

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General

Target

2024-09-06_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe
Size

43KB
MD5

9a05f4ace717b77e0f33781731fe6502
SHA1

cb2f03df7df5af33e3f94660e2b5efa53a13e0be
SHA256

d4622697a5775bc1338f291b9577393b9b07409e55bb2d342e6dadb343149865
SHA512

1f2c21f068b677f3fb2ad5b7db1f28acbf64a2cd2394a969ef20e5d2ad870dfd1d7ebaa267c3bdd07d7ab89f1d105b774c9a8559bf530bd72db06c4ecc02c74b
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrN/:bCDOw9aMDooc+vAqjZ/

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_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3728	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_9a05f4ace717b77e0f33781731fe6502_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 1220 wrote to memory of 3728	1220	2024-09-06_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe	85
PID 1220 wrote to memory of 3728	1220	2024-09-06_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe	85
PID 1220 wrote to memory of 3728	1220	2024-09-06_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-06_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_9a05f4ace717b77e0f33781731fe6502_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220
- 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:3728

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
43KB

MD5
b8e0039ccb7992a4fb93b198d6bebcbb

SHA1
3c98cea9ca3b708ee4c42dcb333240cf1e827171

SHA256
6f47a73c135bc32692f0d1c580ae4e664955e3da011a5d949667c8daf912664e

SHA512
399f0b24baed43e42c756e50586af7ea89060425657b7e6efaeb0bdb4cbc711bbe3ef718e473ddff5978f7a61dbe83d8039ae9e0dc29db0f6ea2ce1ac06a2355

Download Submit
memory/1220-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1220-1-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/1220-2-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/1220-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1220-18-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3728-19-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/3728-25-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3728-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download