4bb041d36fe976985b1eb26b141cf4dacd6b66d286ab57238155accbe03ba2eb

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 16:47

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General

Target

2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe
Size

55KB
MD5

46f076d0a070c61cb137adc4669f74c6
SHA1

e0c0eecb4c897c0510f42780713e7e28183a440b
SHA256

4bb041d36fe976985b1eb26b141cf4dacd6b66d286ab57238155accbe03ba2eb
SHA512

91140ca4a33c3901c5f4f56aa06120b281f468858244ec6ed7fcf865bb3fc21d86fc2e4f39b701ccab021f5981deaf142883c8fc6c5658e216d509e77aa656ad
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaTIR:X6QFElP6n+gJBMOtEvwDpjBtExml+

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4580	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	2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 4580	4232	2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe	85
PID 4232 wrote to memory of 4580	4232	2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe	85
PID 4232 wrote to memory of 4580	4232	2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-05_46f076d0a070c61cb137adc4669f74c6_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4232
- 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:4580

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\asih.exe

Filesize
55KB

MD5
d65942324b2f9b2299c7871beb4f2ed2

SHA1
432c51da2bdd3ba7e85cd2aa05c1b996bd334130

SHA256
cae3c4ffa8bb9d7e4da0d11e67f54100cddc5d7b9091287aadbf5aeacc962112

SHA512
3ab66250dadad21d336afd08289e6402713b5f228827e4ae5581b8a72bd2694ffdd77e12d68afb5db6f34c609fda1449238e4dbdc6d6914e9279ded7bacc3a89

Download Submit
memory/4232-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4232-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4232-2-0x0000000000890000-0x0000000000896000-memory.dmp

Filesize
24KB

Download
memory/4580-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4580-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download