cryptolocker | 0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2022 00:59

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General

Target

0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe
Size

696KB
MD5

b17603f401719f1d99ad6472f8d6682a
SHA1

7bb8e39ac06ff30a7f950915eede119355f15a27
SHA256

0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2
SHA512

893465bd19cba61c8dfc4bc3a455f84bf93fc2ce67ca55493a1385a649e2996a66f45fa337ce02b623b3eaf4f9d0fe233cee22c313452128db0ca2f99182fab5
SSDEEP

12288:g8dz7bg6rRFD7pf4bvgMwqXkHW94XQ/DQ6F1PiJrINa1xuGBmGGcQvSCtCWXou2l:guz3g6rRFDtf4b4MxXkHI4XQ/DQ6FFi7

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker

Executes dropped EXE 2 IoCs

pid	Process
1256	{34184A33-0407-212E-3320-09040709E2C2}.exe
4804	{34184A33-0407-212E-3320-09040709E2C2}.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	{34184A33-0407-212E-3320-09040709E2C2}.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\{34184A33-0407-212E-3320-09040709E2C2}.exe"	{34184A33-0407-212E-3320-09040709E2C2}.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 1256	4896	0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe	81
PID 4896 wrote to memory of 1256	4896	0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe	81
PID 4896 wrote to memory of 1256	4896	0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe	81
PID 1256 wrote to memory of 4804	1256	{34184A33-0407-212E-3320-09040709E2C2}.exe	82
PID 1256 wrote to memory of 4804	1256	{34184A33-0407-212E-3320-09040709E2C2}.exe	82
PID 1256 wrote to memory of 4804	1256	{34184A33-0407-212E-3320-09040709E2C2}.exe	82

C:\Users\Admin\AppData\Local\Temp\0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe
"C:\Users\Admin\AppData\Local\Temp\0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
  "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" "/rC:\Users\Admin\AppData\Local\Temp\0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1256
- - C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w00000220
    3⤵
    - Executes dropped EXE
    PID:4804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

Filesize
696KB

MD5
b17603f401719f1d99ad6472f8d6682a

SHA1
7bb8e39ac06ff30a7f950915eede119355f15a27

SHA256
0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2

SHA512
893465bd19cba61c8dfc4bc3a455f84bf93fc2ce67ca55493a1385a649e2996a66f45fa337ce02b623b3eaf4f9d0fe233cee22c313452128db0ca2f99182fab5

Download Submit
C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

Filesize
696KB

MD5
b17603f401719f1d99ad6472f8d6682a

SHA1
7bb8e39ac06ff30a7f950915eede119355f15a27

SHA256
0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2

SHA512
893465bd19cba61c8dfc4bc3a455f84bf93fc2ce67ca55493a1385a649e2996a66f45fa337ce02b623b3eaf4f9d0fe233cee22c313452128db0ca2f99182fab5

Download Submit
C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

Filesize
696KB

MD5
b17603f401719f1d99ad6472f8d6682a

SHA1
7bb8e39ac06ff30a7f950915eede119355f15a27

SHA256
0be1f445537f124b5175e1f2d1da87e2e57aa4ba09ea5fe72b7bafaf0b8f9ad2

SHA512
893465bd19cba61c8dfc4bc3a455f84bf93fc2ce67ca55493a1385a649e2996a66f45fa337ce02b623b3eaf4f9d0fe233cee22c313452128db0ca2f99182fab5

Download Submit
memory/1256-138-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/4804-143-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/4896-132-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download