3f8552519aca52e0a60ffdb22ffced674b12f59ae509df5b903df20cb3e6eba8

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2024 07:24

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General

Target

2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe
Size

63KB
MD5

18149a4f8bc18fed96456a63976f336b
SHA1

6b3e2f93dfc89d685fb0c4076b95a80b186c5fa4
SHA256

3f8552519aca52e0a60ffdb22ffced674b12f59ae509df5b903df20cb3e6eba8
SHA512

37c6bc594298ac8ace900f04bd94eb1f1d061e2ffbe08b060f16f2355b359b3221592c79e09c3ba0a13f4a23b8058c8bbe378df29f0638760523619fca74bc6e
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbt5A/u6:V6a+pOtEvwDpjvH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4064	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 3716 wrote to memory of 4064	3716	2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe	83
PID 3716 wrote to memory of 4064	3716	2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe	83
PID 3716 wrote to memory of 4064	3716	2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_18149a4f8bc18fed96456a63976f336b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4064

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
63KB

MD5
250daeabc7a025af02e696797460a1b0

SHA1
1873d392c5e5543f707e60a1fbf2036cec04f9c7

SHA256
b8527685fedd4f952244577031053aa6bc6153925b1b87172929487c9f0ae935

SHA512
d639ae9c49b76c349e5bcaf0f0eae5108f3c3f1050a062bb64bf0ee4d19c0000985551e849ae80ce5eb5db86d944f03612426bcf6e33f4bd26bd41257c9e7749

Download Submit
memory/3716-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/3716-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/3716-8-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4064-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4064-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download