9e60a1dc5467668516c0e354727d17365c00b3579a7b1ee53f9699733ba766d1

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 22:46

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General

Target

2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe
Size

130KB
MD5

be809fb40580b22608886afbf98db1ac
SHA1

f2b3c696eafbaeb21b5d900ec4dc4fc05ec27ab8
SHA256

9e60a1dc5467668516c0e354727d17365c00b3579a7b1ee53f9699733ba766d1
SHA512

380477138018cc226fe2c753af7125fd09c65882be823e2ecbe330386bc6917a82ae820a53016cf79950c2c28ab1518537a6c8325083a3aa62eb95d73dafc06f
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp699GNtL1eqf4:V6a+pOtEvwDpjtzl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4212	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 4944 wrote to memory of 4212	4944	2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe	88
PID 4944 wrote to memory of 4212	4944	2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe	88
PID 4944 wrote to memory of 4212	4944	2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_be809fb40580b22608886afbf98db1ac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4212

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
130KB

MD5
edaa30c74a6646d56c4076affcdb983d

SHA1
4590e10a9a123968b737a5451b258ae60bdc3507

SHA256
90b8fa8d23158a4904bc9cec77158ee7e17b8283036984a5aa5a0d12a5eafd64

SHA512
cb7f3486d48f4a45dce87ce76a5c27ddd3540cc4fd8733d97f7c5bc683bb5709d46eb71b13db1c25819982d8fca693ba2849b92e6929f4c343dac76bc90c8246

Download Submit
memory/4212-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4212-22-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4944-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/4944-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/4944-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download