238ef626b1ae6f1721c5bf7ca30a7dfecc694299f0463704959ac86475510786

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 03:33

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General

Target

2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe
Size

55KB
MD5

a172c49903b3f8917297d7e8812d354c
SHA1

a84cd58a216fde68ed17046bcabb9b029d91c037
SHA256

238ef626b1ae6f1721c5bf7ca30a7dfecc694299f0463704959ac86475510786
SHA512

89b8ca53c9b261897fff06ad8267bb9458b8b0d408c2588ef98756c12f30870b97a4217839c1a45e8011403ffdabccd14f3e3f63f770a6e395f9405580e6c6ab
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkgYC:z6QFElP6n+gKmddpMOtEvwDpj31ikgZ

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4600	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/404-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000f000000023a30-13.dat	upx
behavioral2/memory/404-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4600-26-0x0000000000500000-0x0000000000510000-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	2024-11-20_a172c49903b3f8917297d7e8812d354c_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 404 wrote to memory of 4600	404	2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe	85
PID 404 wrote to memory of 4600	404	2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe	85
PID 404 wrote to memory of 4600	404	2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_a172c49903b3f8917297d7e8812d354c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- 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:4600

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
d827b0573ee768aea354a9aeea4a27fc

SHA1
eb8426ec95140e2f60f15e94aaab969129f2c591

SHA256
7aa298107264dc29ffe855495fb9c454b3fe8637432d708cdb1aece681a90d46

SHA512
7c7b94ae9591cf8befd8a91b73237bcce8fe7987a0e847b0080c7a3d60cb3afdef80b5a113f08ea5c6141648ee6d5034132035a012e4750d51e797a36acd98ae

Download Submit
memory/404-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/404-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/404-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/404-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/404-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4600-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4600-20-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4600-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download