cryptolocker | 026e0c95f7bd367869eff94fe12cf77bdcc85d20fd75f32849ea4681cc50aa97

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11-05-2023 03:23

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General

Target

2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe
Size

338KB
MD5

425285913719fbe1121fe2b5bc4a3654
SHA1

9af8d5b4f7bf1e517a475f5cfd58551333019506
SHA256

026e0c95f7bd367869eff94fe12cf77bdcc85d20fd75f32849ea4681cc50aa97
SHA512

8d440d5fe84290b743da1c2c5b2d0929e3b052cb8d487d267aca84aec5263716020d6c4d24fb0c757054ed5bb93a75688cf875a59a66aa70e0cc40757b122013
SSDEEP

3072:2MBf7xbe7VWdtjgsM3+cYAJp8VbhdvCKJ:/BNb8VucYAJpedvC

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker

Deletes itself 1 IoCs

pid	Process
1880	{34184A33-0407-212E-3320-09040709E2C2}.exe

Executes dropped EXE 2 IoCs

pid	Process
1880	{34184A33-0407-212E-3320-09040709E2C2}.exe
1728	{34184A33-0407-212E-3320-09040709E2C2}.exe

Loads dropped DLL 1 IoCs

pid	Process
1480	2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.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-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run	{34184A33-0407-212E-3320-09040709E2C2}.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\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 8 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 1880	1480	2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe	27
PID 1480 wrote to memory of 1880	1480	2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe	27
PID 1480 wrote to memory of 1880	1480	2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe	27
PID 1480 wrote to memory of 1880	1480	2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe	27
PID 1880 wrote to memory of 1728	1880	{34184A33-0407-212E-3320-09040709E2C2}.exe	28
PID 1880 wrote to memory of 1728	1880	{34184A33-0407-212E-3320-09040709E2C2}.exe	28
PID 1880 wrote to memory of 1728	1880	{34184A33-0407-212E-3320-09040709E2C2}.exe	28
PID 1880 wrote to memory of 1728	1880	{34184A33-0407-212E-3320-09040709E2C2}.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1480
- 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\2023-05-10_425285913719fbe1121fe2b5bc4a3654_cryptolocker.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1880
- - C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w000000C8
    3⤵
    - Executes dropped EXE
    PID:1728

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

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Downloads

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

Filesize
338KB

MD5
425285913719fbe1121fe2b5bc4a3654

SHA1
9af8d5b4f7bf1e517a475f5cfd58551333019506

SHA256
026e0c95f7bd367869eff94fe12cf77bdcc85d20fd75f32849ea4681cc50aa97

SHA512
8d440d5fe84290b743da1c2c5b2d0929e3b052cb8d487d267aca84aec5263716020d6c4d24fb0c757054ed5bb93a75688cf875a59a66aa70e0cc40757b122013

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

Filesize
338KB

MD5
425285913719fbe1121fe2b5bc4a3654

SHA1
9af8d5b4f7bf1e517a475f5cfd58551333019506

SHA256
026e0c95f7bd367869eff94fe12cf77bdcc85d20fd75f32849ea4681cc50aa97

SHA512
8d440d5fe84290b743da1c2c5b2d0929e3b052cb8d487d267aca84aec5263716020d6c4d24fb0c757054ed5bb93a75688cf875a59a66aa70e0cc40757b122013

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

Filesize
338KB

MD5
425285913719fbe1121fe2b5bc4a3654

SHA1
9af8d5b4f7bf1e517a475f5cfd58551333019506

SHA256
026e0c95f7bd367869eff94fe12cf77bdcc85d20fd75f32849ea4681cc50aa97

SHA512
8d440d5fe84290b743da1c2c5b2d0929e3b052cb8d487d267aca84aec5263716020d6c4d24fb0c757054ed5bb93a75688cf875a59a66aa70e0cc40757b122013

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

Filesize
338KB

MD5
425285913719fbe1121fe2b5bc4a3654

SHA1
9af8d5b4f7bf1e517a475f5cfd58551333019506

SHA256
026e0c95f7bd367869eff94fe12cf77bdcc85d20fd75f32849ea4681cc50aa97

SHA512
8d440d5fe84290b743da1c2c5b2d0929e3b052cb8d487d267aca84aec5263716020d6c4d24fb0c757054ed5bb93a75688cf875a59a66aa70e0cc40757b122013

Download Submit