66ec5d01b5b389e77345dc53cb2018213a20be2a267c65829e2514a28a2791ec

Analysis

max time kernel
15s
max time network
32s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21/05/2023, 14:54

Target

include/secommon/se_string.h
Size

9KB
MD5

191d7fd3be9580b32e2be040e4e5cea4
SHA1

7d7005c8a3d4115a0a80908b2de960caf107a499
SHA256

5601e2a000d9de4282b0bd242e51dbe1239ffa006befd3931ca6ade1b6a0eca5
SHA512

96259e2ac3e7dd25cbb86e45d2056f487a5b19c5ea501d5f2198adfd359ece4dbf23bc7ac52be75b5db55bc9d491871f7a84050ed00c39271853e2fe96dd442c
SSDEEP

192:UBCtIKJWNcjakBfP4eHYN0Gr3SKdSbTXo5hSizQeCJM0:4CtIPNcjH4eHYN0mCKg4D3z8/

Score

3^/10

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

System Information Discovery
T1082

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell\open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\.h	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\.h\ = "h_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell\edit	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000_CLASSES\h_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

pid	Process
1704	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 324 wrote to memory of 1756	324	cmd.exe	28
PID 324 wrote to memory of 1756	324	cmd.exe	28
PID 324 wrote to memory of 1756	324	cmd.exe	28
PID 1756 wrote to memory of 1704	1756	rundll32.exe	29
PID 1756 wrote to memory of 1704	1756	rundll32.exe	29
PID 1756 wrote to memory of 1704	1756	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\include\secommon\se_string.h
1⤵
- Suspicious use of WriteProcessMemory
PID:324
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\include\secommon\se_string.h
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1756
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\include\secommon\se_string.h
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1704

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact