0f33d34bd4c3314c336a01855e1837e015f7c7ff15991b5dcb2d1af70330fdf7

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 04:46

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General

Target

2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe
Size

30KB
MD5

f1f3d9ee24317f68efa43fd0e0ea2e45
SHA1

34baf0e51e779565f53342bf9cd4a94021fda70a
SHA256

0f33d34bd4c3314c336a01855e1837e015f7c7ff15991b5dcb2d1af70330fdf7
SHA512

4a117f50d3845672de35fa67a5aeafa46cb564d30fca3759a21ea01afc80bb864629e632fa2dd16bca1ef0d5483671d0123b70c06a382852f880060bbe7ca89c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfE:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012324-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012324-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2944	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1968	2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe
2944	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2944	1968	2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe	28
PID 1968 wrote to memory of 2944	1968	2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe	28
PID 1968 wrote to memory of 2944	1968	2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe	28
PID 1968 wrote to memory of 2944	1968	2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_f1f3d9ee24317f68efa43fd0e0ea2e45_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
30KB

MD5
6037072346f5b2e747e3662287cb3cfc

SHA1
39a375ab1c0896de18c93713db9c90df5a38ee5e

SHA256
a48b27896347d42f2d23bafd815ec68fafa557b94a77bb4f5c2e2bb491946d88

SHA512
7cb8680cccaf4963d3e7bad4f0906ba1d0dabea2f01f8422df0b77916cc61097f29fdeb122c853cde1994da307a93fa466d9f672ff66438d34e793dd0bf70599

Download Submit
memory/1968-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1968-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2944-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download