8cff0a98cc428824e9039ca0d53e1c26b82870131e664ddf067d30ed515a7c96

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 04:51

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General

Target

2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe
Size

60KB
MD5

aad863266e08ac32c964f2b1be535e1a
SHA1

e6b271573616d1afce5fde737551cf133d8a467c
SHA256

8cff0a98cc428824e9039ca0d53e1c26b82870131e664ddf067d30ed515a7c96
SHA512

9d40d9a8e1a7cd4024cd4d392f6d7b2db4e1eab9dcf4393cab665fcc6dcc46371fc2e155601d117c2693aa32cb5fd3d5e72d8cb845d5e88f6383b54bcf441ce3
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+FwNrip0:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+grN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral1/files/0x000900000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/2544-25-0x0000000000420000-0x0000000000426000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2544	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2728	2024-03-19_aad863266e08ac32c964f2b1be535e1a_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 2728 wrote to memory of 2544	2728	2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe	28
PID 2728 wrote to memory of 2544	2728	2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe	28
PID 2728 wrote to memory of 2544	2728	2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe	28
PID 2728 wrote to memory of 2544	2728	2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_aad863266e08ac32c964f2b1be535e1a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2544

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\misid.exe

Filesize
60KB

MD5
ee8be3e9be076b4f66b68525dd2b7dc5

SHA1
b499ce90085cad83e0f59a6307b4b2c6fbc063de

SHA256
f31368471f9ec5a3e4b34c4945e73ca13984742a14497512760351861eab0dad

SHA512
749121849bef54182a05c6947ef6451e427abac0df177e1cc1bbcfd30c4e5d19d656feb7f104b50527d9960cc8e1cdf7516a46f8c1ef8b11c0d0c1d4f3bd15d0

Download Submit
memory/2544-15-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2544-17-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2544-20-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2544-25-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2728-1-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2728-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2728-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2728-3-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download