dce1d4ce16492af5e59b0fba376eae9990558c86dc328a8e28102be81c462f6b

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 04:42

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General

Target

2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe
Size

41KB
MD5

87dcbb1a57cfaf98564a9bfbb7c5d05b
SHA1

5f08a74c7e1abd0ca0d8bda35958b26bf2840b11
SHA256

dce1d4ce16492af5e59b0fba376eae9990558c86dc328a8e28102be81c462f6b
SHA512

2cc19f50fef48565bf076f4c74fcbeec8a230efe626d50dfdb794ccd43097e161c4b35de190c91b86f784c3d0dfe541bbad0e01f3483e5701bf77d703d79655b
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwqg:bA6YcA/X6G0W143QH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4840	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 4120 wrote to memory of 4840	4120	2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe	82
PID 4120 wrote to memory of 4840	4120	2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe	82
PID 4120 wrote to memory of 4840	4120	2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_87dcbb1a57cfaf98564a9bfbb7c5d05b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4840

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
41KB

MD5
523ac2a74a1a0b3892e827e392c5a384

SHA1
0ee6ad94a6bfb69bdf90bfcca8d3beb0db80f8a6

SHA256
7cb8d1d34955da18d9132b9ea233fffc7c8e5edd747e45c997e4b8c8f4c666f0

SHA512
67131c63ed9f8ce9c4f172b7318824c06f24b44935cb766bf0ef1bd134c9b9422f88711a92b591ba21ad5bb4cb17c74a87899df4eb0a85e60be6dbad3605b96d

Download Submit
memory/4120-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4120-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4120-8-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4840-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download