396ecc670a47322d3a7f9d84446e6fc9cbffd0211cfdaed96bf79f2a10a24a4e

Analysis

max time kernel
151s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 19:46

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General

Target

2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe
Size

45KB
MD5

82e591a4bdbd4a6329608b43aae4fbf7
SHA1

6922309dedebc65144f2c331ad4bad3c6f611e61
SHA256

396ecc670a47322d3a7f9d84446e6fc9cbffd0211cfdaed96bf79f2a10a24a4e
SHA512

408d5febd27eb696221e4198234a16312677753c9ad4f4b2a02b0cefe60ba1ed6cdc1290ca5e0a446f0087d5db1971f3422b7811ae662eff9542baf1b585aa5e
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YlNBu:bgGYcA/53GAA6y37Qbu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022480-12.dat	CryptoLocker_rule2

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2416	hasfj.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 4280 wrote to memory of 2416	4280	2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe	89
PID 4280 wrote to memory of 2416	4280	2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe	89
PID 4280 wrote to memory of 2416	4280	2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_82e591a4bdbd4a6329608b43aae4fbf7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2416

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\hasfj.exe

Filesize
45KB

MD5
831746cc5d33dfdd31005e15a04b1f9e

SHA1
3f35831389f293eb2284653b0355bb97ca009043

SHA256
15a5859cc12f20f9234abef4689e02ac2a7ccc280b95c4b755ba210fcdba1094

SHA512
f74219eea24a6a5d8691743380b6de5379f428718de8c7288a2d74c408c577d120ad30d912bfa1e2998b7ac03e37b5d6cb5382a80a72d41aec4717f693843e56

Download Submit
memory/2416-17-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2416-18-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4280-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4280-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4280-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download