b5243d6f527c8057fbdbfc5b439152cd09b7ca95a173967802319c03969417d1

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:22

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General

Target

2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe
Size

54KB
MD5

1f587ae8fd252849354f70b000a56558
SHA1

51aca06dd56bc2b77958d0cb030dd75f9eba0a8a
SHA256

b5243d6f527c8057fbdbfc5b439152cd09b7ca95a173967802319c03969417d1
SHA512

cbdb0d21fafd3b9aa14706412bae1e950e0644fbe38f124a1aa1f641d91ca27fd33aaea1fd37deaf584e5725e011f838cab8eae8fe75c11d143abd66c2fa9087
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaTG:X6QFElP6n+gJBMOtEvwDpjBtExmly

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2040	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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 2040	5072	2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe	85
PID 5072 wrote to memory of 2040	5072	2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe	85
PID 5072 wrote to memory of 2040	5072	2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_1f587ae8fd252849354f70b000a56558_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5072
- 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:2040

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
55KB

MD5
e8df7e7d52c6f63f4f54018ae8abd353

SHA1
e3a9822087b7f4f52ea5c6c958171e5e290a6ea3

SHA256
8bc4cdf0802b1cb6d16b80ec38bb241c5c87113c9db8c16488d680155e7d9145

SHA512
4af2b18bb3928682c02dc13c855578063118d691ddadde32883b476767995170bccec3aff3b1a4c40c248098849c5fe67546ff71dd8313fae5d82222b68a8742

Download Submit
memory/2040-23-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/2040-17-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2040-24-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/5072-0-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/5072-1-0x00007FFF95030000-0x00007FFF95225000-memory.dmp

Filesize
2.0MB

Download
memory/5072-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download