aad6c7d6710dda3672b5dd3ed9f0a7f51f4de8840f24c1a61a540b53ce49bcf3

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 11:51

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General

Target

2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe
Size

94KB
MD5

fc179d184728d71f1e55d978c56d2b76
SHA1

c4630a38d842a98ace5bf6b630fd3c7c9bacc3e6
SHA256

aad6c7d6710dda3672b5dd3ed9f0a7f51f4de8840f24c1a61a540b53ce49bcf3
SHA512

e4ceeef14cea1e68790d391bd6f23fcfc76ed96c0c1ca3dc3623a34a123e9b488a4f20c6bddd847c4833f49b534a289f5c112b94d1dac4ac27c3e3286e3480ca
SSDEEP

1536:Z6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNC42r:Z6a+pOtEvwDpjtzw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023245-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023245-12.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4984	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 2232 wrote to memory of 4984	2232	2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe	83
PID 2232 wrote to memory of 4984	2232	2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe	83
PID 2232 wrote to memory of 4984	2232	2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_fc179d184728d71f1e55d978c56d2b76_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4984

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
94KB

MD5
f71c46bbe5ba8d0fe4fdf72f35c5462a

SHA1
97f4f9f05a4812cfcc6bf772e6907fdaca2eaf49

SHA256
deaf86312b18b4a44f684590aae1349ee6ff7d4d017dcc85e19aca89e6d80577

SHA512
ce0b5390b2f5595e4bee6d15ae07d7a7dbbf253a36480fc74f7428511d6d5bd4cd2c836c0bf03276da439caa66d2432608158f83c58801a136b1ed98a3adb15f

Download Submit
memory/2232-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2232-2-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4984-17-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4984-22-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download