5032521b26ab4ccfba4aa5e4a00a8b6babc53a7da9e918354537a54739173bee

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 09:53

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General

Target

2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe
Size

131KB
MD5

d868ea21ae741a680ae212d7cd86d945
SHA1

5193b5c07065cd0e554d48754e8f3dc2941b6d45
SHA256

5032521b26ab4ccfba4aa5e4a00a8b6babc53a7da9e918354537a54739173bee
SHA512

b1a09246aea09043db2e251120fea1bcc071b9105b0116f4a025bee65bf69b558d4696bf80725bd9ecaa22b622dcd8a7a5dc53524f2284c6766807365b7ad9bb
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp699GNtL1et:V6a+pOtEvwDpjtz3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000231e9-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000231e9-12.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4848	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 5088 wrote to memory of 4848	5088	2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe	87
PID 5088 wrote to memory of 4848	5088	2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe	87
PID 5088 wrote to memory of 4848	5088	2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_d868ea21ae741a680ae212d7cd86d945_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4848

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

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Downloads

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

Filesize
132KB

MD5
795508bdf2f169928bc344699257692a

SHA1
22540add4f9ef6761833bf4654ddc21aeaf37b95

SHA256
0fa48cbab17aacb49816694b724268e6bec2e6c8aeb7f535706cd1e1fa4335cd

SHA512
f10adc924cc75431ffb2f2218b63e283bed0cfa6dae7c1bc892ed0c899f579a32e114e5996d77b87be448e9232914d976777faf7d9ce082bc82db5ea7406c7d4

Download Submit
memory/4848-18-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/4848-17-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/5088-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/5088-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/5088-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download