cryptolocker | 0b432f20d54647f077811ecb1df4dbc64fb17fbd6a9e0cce4ac9437d5f7891fb

Resubmissions

18-03-2024 22:36

240318-2h9hwsba88 10

Analysis

max time kernel
1800s
max time network
1806s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18-03-2024 22:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Ransomware/CryptoLocker.exe
Size

338KB
MD5

04fb36199787f2e3e2135611a38321eb
SHA1

65559245709fe98052eb284577f1fd61c01ad20d
SHA256

d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9
SHA512

533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444
SSDEEP

6144:sWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvC:sWkEuCaNT85I2vCMX5l+ZRv

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker

Deletes itself 1 IoCs

pid	Process
4756	{34184A33-0407-212E-3320-09040709E2C2}.exe

Executes dropped EXE 2 IoCs

pid	Process
4756	{34184A33-0407-212E-3320-09040709E2C2}.exe
4568	{34184A33-0407-212E-3320-09040709E2C2}.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\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 3928 wrote to memory of 4756	3928	CryptoLocker.exe	88
PID 3928 wrote to memory of 4756	3928	CryptoLocker.exe	88
PID 3928 wrote to memory of 4756	3928	CryptoLocker.exe	88
PID 4756 wrote to memory of 4568	4756	{34184A33-0407-212E-3320-09040709E2C2}.exe	89
PID 4756 wrote to memory of 4568	4756	{34184A33-0407-212E-3320-09040709E2C2}.exe	89
PID 4756 wrote to memory of 4568	4756	{34184A33-0407-212E-3320-09040709E2C2}.exe	89

C:\Users\Admin\AppData\Local\Temp\Ransomware\CryptoLocker.exe
"C:\Users\Admin\AppData\Local\Temp\Ransomware\CryptoLocker.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3928
- 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\Ransomware\CryptoLocker.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4756
- - C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w0000021C
    3⤵
    - Executes dropped EXE
    PID:4568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
338KB

MD5
04fb36199787f2e3e2135611a38321eb

SHA1
65559245709fe98052eb284577f1fd61c01ad20d

SHA256
d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9

SHA512
533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444

Download Submit

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads