3802ff37f3c73aa7162c5a3161906b700bc63d4c2b456f92b39efbe055a830d6

Analysis

max time kernel
150s
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
09/10/2024, 14:21

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General

Target

2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe
Size

90KB
MD5

eb2727c198ff658eb8185c59cd9df33f
SHA1

fa06dfbbd72a1094e29a337545e2b70e219c2bc1
SHA256

3802ff37f3c73aa7162c5a3161906b700bc63d4c2b456f92b39efbe055a830d6
SHA512

cbd34b096d38179992113940ccc22ec8448934c2d9766d4e8726592f3b6028bfbe5eb4bab73ced4a46eeaed92e03ba3e7d0f9492a9aef9d0b9e10360678201eb
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0:AnBdOOtEvwDpj6zP

Score

7^/10

discovery upx

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3816	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2732-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000c000000023b54-13.dat	upx
behavioral2/memory/2732-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/3816-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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	2024-10-09_eb2727c198ff658eb8185c59cd9df33f_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 2732 wrote to memory of 3816	2732	2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe	87
PID 2732 wrote to memory of 3816	2732	2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe	87
PID 2732 wrote to memory of 3816	2732	2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_eb2727c198ff658eb8185c59cd9df33f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- 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:3816

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
90KB

MD5
b8d8a9423b67b2123b459882c96dc087

SHA1
78b042c0b4d5aae4cfe0caadb411bc3a625e697e

SHA256
06bfa9c72da779d39445a6d66bc12ab1e928d68b94da3d3942f1e3cbdc78af76

SHA512
3e9b2deee624e482fba331def8b70f0787e4e559fc8a89887e56302c103b31144d31be90991a37dfdefe7d038fb4152d1ce64e1f4d300e04c1a001b04de9dc6e

Download Submit
memory/2732-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2732-1-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/2732-2-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/2732-3-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2732-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3816-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3816-21-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/3816-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download