ed00e959258203fe1a9ad05de27053bf4733b0bde9b9312eb122f5fd172ab607

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 09:29

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General

Target

2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe
Size

63KB
MD5

4489ef89df88333a2c113a7e4b27e7d1
SHA1

72c13d2e33cc6aff37117947112fca5dea490c21
SHA256

ed00e959258203fe1a9ad05de27053bf4733b0bde9b9312eb122f5fd172ab607
SHA512

7ef8c4d681de71abfdda28e08ab44e0e760ba8c5b830d72da0cd43b115bf1344be99f57a66522b4f8b4bd4278d7931663f69b01211edc4ca489b283dd9e2f67a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSA90:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012185-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012185-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2828	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_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
3028	2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe
2828	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2828	3028	2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe	28
PID 3028 wrote to memory of 2828	3028	2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe	28
PID 3028 wrote to memory of 2828	3028	2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe	28
PID 3028 wrote to memory of 2828	3028	2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_4489ef89df88333a2c113a7e4b27e7d1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3028
- 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:2828

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
63KB

MD5
0b5d242d58aba48d27a0617cd2185202

SHA1
76592b45a658626be9b9d4ca78a8b6402a186a0c

SHA256
915e8361fd397cd40aae9eae9c4374de3a64c703c7e98bc6ff6cb6651bedba23

SHA512
43bcb6d9ce179840adf7e6770565b0f1be36ef1c3fbe337cc9e3d4bee8c2608595bedac6c87717c556d097e08af7137d8df5ce50f7da0e3b98692076e6695796

Download Submit
memory/2828-17-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3028-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3028-3-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download