cryptolocker | 0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43

General

Target

0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe
Size

343KB
MD5

012d9088558072bc3103ab5da39ddd54
SHA1

a6eee7369eb008fe48789ad4e8d2d8dcba4f23d9
SHA256

0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43
SHA512

ecd1258b11d5f66c25f2ab26430c23b9b6d9e04777962ea11e275f64a86a9dcd1400a665d022a8924b727ac3298c8569f49f268a619b21818fb980d1e0a38418

Score

10^/10

cryptolocker persistence ransomware suricata

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
suricata: ET MALWARE Possible Zeus GameOver/FluBot Related DGA NXDOMAIN Responses
suricata: ET MALWARE Possible Zeus GameOver/FluBot Related DGA NXDOMAIN Responses
suricata

Executes dropped EXE 2 IoCs

pid	Process
2256	{34184A33-0407-212E-3320-09040709E2C2}.exe
4836	{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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\Run	{34184A33-0407-212E-3320-09040709E2C2}.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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 3544 wrote to memory of 2256	3544	0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe	80
PID 3544 wrote to memory of 2256	3544	0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe	80
PID 3544 wrote to memory of 2256	3544	0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe	80
PID 2256 wrote to memory of 4836	2256	{34184A33-0407-212E-3320-09040709E2C2}.exe	81
PID 2256 wrote to memory of 4836	2256	{34184A33-0407-212E-3320-09040709E2C2}.exe	81
PID 2256 wrote to memory of 4836	2256	{34184A33-0407-212E-3320-09040709E2C2}.exe	81

C:\Users\Admin\AppData\Local\Temp\0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe
"C:\Users\Admin\AppData\Local\Temp\0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3544
- 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\0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
    "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w00000224
    3⤵
    - Executes dropped EXE
    PID:4836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

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
343KB

MD5
012d9088558072bc3103ab5da39ddd54

SHA1
a6eee7369eb008fe48789ad4e8d2d8dcba4f23d9

SHA256
0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43

SHA512
ecd1258b11d5f66c25f2ab26430c23b9b6d9e04777962ea11e275f64a86a9dcd1400a665d022a8924b727ac3298c8569f49f268a619b21818fb980d1e0a38418

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

Filesize
343KB

MD5
012d9088558072bc3103ab5da39ddd54

SHA1
a6eee7369eb008fe48789ad4e8d2d8dcba4f23d9

SHA256
0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43

SHA512
ecd1258b11d5f66c25f2ab26430c23b9b6d9e04777962ea11e275f64a86a9dcd1400a665d022a8924b727ac3298c8569f49f268a619b21818fb980d1e0a38418

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

Filesize
343KB

MD5
012d9088558072bc3103ab5da39ddd54

SHA1
a6eee7369eb008fe48789ad4e8d2d8dcba4f23d9

SHA256
0dd7f3dffe8c6e69df6137cb413ad25c474d73a86f1d46d52846990aa66e6f43

SHA512
ecd1258b11d5f66c25f2ab26430c23b9b6d9e04777962ea11e275f64a86a9dcd1400a665d022a8924b727ac3298c8569f49f268a619b21818fb980d1e0a38418

Download Submit

Analysis

Sharing