0e2ef5bd176bad6546f7b29acb0732a24a0e565cd4675df7169ff4a63ee76b08

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12-05-2024 20:53

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General

Target

2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe
Size

68KB
MD5

291b9aa3bc60a78846d5b31d981097f7
SHA1

60effce7bd2b7bd5f294689ec5980f2a80d1651a
SHA256

0e2ef5bd176bad6546f7b29acb0732a24a0e565cd4675df7169ff4a63ee76b08
SHA512

0b42636cee3a29988b82a1964aee9bf55838d8f7f52a0d90b974dfa2ee4b8b46bda11d3e2066232eed57accebe2480d747969c29529cdb6e6ff51b0e2f0135f8
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLlY:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4696	hurok.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 4508 wrote to memory of 4696	4508	2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe	80
PID 4508 wrote to memory of 4696	4508	2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe	80
PID 4508 wrote to memory of 4696	4508	2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe	80

C:\Users\Admin\AppData\Local\Temp\2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_291b9aa3bc60a78846d5b31d981097f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4696

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\hurok.exe

Filesize
68KB

MD5
5fb589350685cbe099ebe86ed1691d79

SHA1
2af970f469c6f6f80a33f4568e362578d262522a

SHA256
597998e31d3e808a793f33e72e988a644b8cf5636778078ea552eb6f838924e6

SHA512
89b2813d7d341b6e92ff121e1a798ab17574a37a92d4d784edc8470c38716c5d846cac1ba13bbd3827f8917820259b61c9905d1f3ad1803192c4a0e9125ac55b

Download Submit
memory/4508-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4508-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4508-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4696-25-0x0000000001F10000-0x0000000001F16000-memory.dmp

Filesize
24KB

Download