2023e3170a42e97b26a9966ebd48b69f4f61c2d4836c600b75b11aa55b5f39cc

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 08:02

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General

Target

2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe
Size

54KB
MD5

edf633e6fe26dc656576442404b1d718
SHA1

4db73e0b8ac4726c6ec962b74ac60fdb569cee64
SHA256

2023e3170a42e97b26a9966ebd48b69f4f61c2d4836c600b75b11aa55b5f39cc
SHA512

8dd7548858b6cdd7fa2e1dee3bd604cd967bc99a3c9dd2e31df4392ff8f989cef62361aaf5d5beab922660bcd61db43bcc8f2256dc2903c527ed0d8a7883f73c
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklPsL:V6a+pOtEvwDpjP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000233fa-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000233fa-12.dat	CryptoLocker_set1

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4140	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 6060 wrote to memory of 4140	6060	2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe	82
PID 6060 wrote to memory of 4140	6060	2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe	82
PID 6060 wrote to memory of 4140	6060	2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_edf633e6fe26dc656576442404b1d718_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:6060
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4140

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
54KB

MD5
0838132a053f50237ed921471fb0c843

SHA1
f63c4e5f5744acf28921a280bdca19e338b2cec8

SHA256
958de78a0913fd3854841f1a0738c9d722c608055bf15982bcb2c9e6e34d0670

SHA512
8838429f09773d0c21622b282ae39f927eeb519dc2c53d4fbf3dfe38f04cbd69a1faf3f1ec5a41938e314aefb9160aa34234c6fdf27d12267c7d140a3be2c77c

Download Submit
memory/4140-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4140-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/6060-0-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/6060-2-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/6060-8-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download