23942855314a0ece58620e544a0c28941b61fb83b246d9ae45cce72221dceeba

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 16:30

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General

Target

2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe
Size

48KB
MD5

2a2f6cf8b1312006ba1744296f2e0398
SHA1

1fd6ac87bfa989de8e1009da7d18f577bccf9665
SHA256

23942855314a0ece58620e544a0c28941b61fb83b246d9ae45cce72221dceeba
SHA512

990a50b7048e62e23c5a3576e742902dc24978d9014f5b966ec723bf4bdb032aa4f8888f4a9fec16b84d430a48ef9152dbe63322edd25c7337c922a4123919d0
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hQcEp7B1:bgGYcA/53GAA6y37nbQb1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2932	1624	2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_2a2f6cf8b1312006ba1744296f2e0398_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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\hasfj.exe

Filesize
49KB

MD5
56477b4f079969bc508d5ebebfded1e3

SHA1
1b95fec7a136bd222101427d4de4703ef8947de1

SHA256
8db36fc96d178a9a113ea498800bfe060352e0a59b89cbb5e7e80fa790ed2fda

SHA512
1a6396b8b84adb4998b037a28f74f8b501f723b1cbc096121a204887cf8e889d7f860aba0164e8be31473b98cc599575138f0c99b71b65efcdd85db0dc1b5bfd

Download Submit
memory/1624-0-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download
memory/1624-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1624-2-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download
memory/2932-16-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download