46460b48fb1852ffea36167f562bf491305e5a908983e2e71bb7a7cdc4d5cfe8

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 04:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe
Size

64KB
MD5

e5d8c9cec6b6fa7cc773ad84d8a921e2
SHA1

80e4e88dcd596be50a23212710dd07d193ab698b
SHA256

46460b48fb1852ffea36167f562bf491305e5a908983e2e71bb7a7cdc4d5cfe8
SHA512

f6f7d73965be52bae22dc06672a7c1922303fb8da94de16e048011dfe2f2c111661ae9898467d99e2a6fc104835fc57fb0c13906047fe94fe165f8e425893fda
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299efA:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7D

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122ee-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122ee-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2632	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2424	2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_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
2424	2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe
2632	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2632	2424	2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe	28
PID 2424 wrote to memory of 2632	2424	2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe	28
PID 2424 wrote to memory of 2632	2424	2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe	28
PID 2424 wrote to memory of 2632	2424	2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_e5d8c9cec6b6fa7cc773ad84d8a921e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2424
- 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:2632

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
15bceb7eb0b8a7e8e377ee54a7edf61e

SHA1
bd073cdd7d5e792831622557d68b87ad43a23d43

SHA256
ab66b6b33194173ad5a642c215b7ecd66c786a16383a37fb07c22d1cf7cf264b

SHA512
2b841a6ee1d1b93efbc1bea6f7df8a165dad6f80cd9e9efdea203d6a21b4d81980aa0192ee1965ac9687c66e12ba3c9608c9336a0f861a5379862e8857b2b61c

Download Submit
memory/2424-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2424-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2424-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2632-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download