7ed0cd9cd1bfed71ea8725d606c7d1235c153dd1dd9c45a4a7d24d86ade0ab7d

Analysis

max time kernel
166s
max time network
186s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 05:34

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General

Target

2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe
Size

35KB
MD5

3ddb34c92ff78cbc3d525d8975cdeeb6
SHA1

4329bd2e254752ec8a02c98c19149d5c78dfff13
SHA256

7ed0cd9cd1bfed71ea8725d606c7d1235c153dd1dd9c45a4a7d24d86ade0ab7d
SHA512

7ab331119ad6a257a928bf6bb92d509ee9ff9201d2cf51fb8f38205a60e3ecde311cb24ccfb5b0a1ad5128703ebe497a75bd0151f5f886413be11ef3a49af707
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wmk5R:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012265-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012265-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2612	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_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
2232	2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe
2612	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2612	2232	2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe	27
PID 2232 wrote to memory of 2612	2232	2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe	27
PID 2232 wrote to memory of 2612	2232	2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe	27
PID 2232 wrote to memory of 2612	2232	2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_3ddb34c92ff78cbc3d525d8975cdeeb6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2232
- 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:2612

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
35KB

MD5
ef5056a0c88e560e1ded1f87b9500c0c

SHA1
ca23e06da9eb86409032307fafa186b2bb8837d7

SHA256
4ef5b91d07e02f4a0febcf2d4df1aba90d54054f4cd9433b54fee468ffef3206

SHA512
7687279fe0b97d6a5ef3dd9181aa313ca471537b2645ebfd0ef4a25b8538dbaa7464a7d80bb484f379554ab78dd583d67c85abbf130c355665ce58bed6d42bea

Download Submit
memory/2232-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2232-3-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download