81a83544cf93c245178cbc1620030f1123f435af867c79d87135983c52ab39d9

Resubmissions

26/10/2022, 11:52

221026-n1v7bsfec8 1

26/10/2022, 11:51

221026-n1gzpsfec7 3

Analysis

max time kernel
11s
max time network
13s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26/10/2022, 11:51

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Report Analysis Logs

General

Target

call.php
Size

4B
MD5

08f90c1a417155361a5c4b8d297e0d78
SHA1

a4ac914c09d7c097fe1f4f96b897e625b6922069
SHA256

81a83544cf93c245178cbc1620030f1123f435af867c79d87135983c52ab39d9
SHA512

57acf66b146e4f606413e8707ffae882a5ea0228de3455c8efffd439f6ef1a2a04eec109d2879bf64c1d7e05cdd808a14db5c5b0f6a4ccf758d0c998058b53cd

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 13 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell\edit	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.php	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.php\ = "php_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\php_auto_file\shell\open\command	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
648	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1280	1964	cmd.exe	29
PID 1964 wrote to memory of 1280	1964	cmd.exe	29
PID 1964 wrote to memory of 1280	1964	cmd.exe	29
PID 1280 wrote to memory of 648	1280	rundll32.exe	30
PID 1280 wrote to memory of 648	1280	rundll32.exe	30
PID 1280 wrote to memory of 648	1280	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\call.php
1⤵
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\call.php
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\call.php
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:648

Network

MITRE ATT&CK Enterprise v6

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

memory/1964-54-0x000007FEFBFE1000-0x000007FEFBFE3000-memory.dmp

Filesize
8KB

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