7574774c5417c95d9c56dbdd3489daa95d37c28b5b94ede5afde42472a915d0d

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02/02/2024, 13:26

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General

Target

2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe
Size

65KB
MD5

55d77dfa0f48e785f9ce048963ea1435
SHA1

ab29e67641add97d8fb4ace5fecf00e491161ca6
SHA256

7574774c5417c95d9c56dbdd3489daa95d37c28b5b94ede5afde42472a915d0d
SHA512

e331f62045678083be680f47d539f3a82e3305ee997cd95499f926607e90c7e51c30345fa9e807147959e00d6303a003acf06cbe583eef55ba2373c37e6df485
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVi:ZVxkGOtEvwDpjcaws

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2676	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2396	2024-02-02_55d77dfa0f48e785f9ce048963ea1435_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 2396 wrote to memory of 2676	2396	2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe	28
PID 2396 wrote to memory of 2676	2396	2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe	28
PID 2396 wrote to memory of 2676	2396	2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe	28
PID 2396 wrote to memory of 2676	2396	2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_55d77dfa0f48e785f9ce048963ea1435_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2676

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
65KB

MD5
8fffd521fcb71064b7ab0ef8fc891a02

SHA1
6b71d7549c84621bbb827bb124eaa0c6ffe67877

SHA256
7fdb359b86273e0726affe858c1361792bc068f63f2ee8a335fbbbde7185e13b

SHA512
eab39bd7c28f077f300401a66169e167110eb6cb77acdb8f09435de8c9ca28f446293cc0a4eed8dba54b7ca78987e87d15e657d066fdf256e0cef08cbd47c0e4

Download Submit
memory/2396-0-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2396-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2396-3-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2396-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2396-15-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2676-17-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2676-24-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download