66ec5d01b5b389e77345dc53cb2018213a20be2a267c65829e2514a28a2791ec

Analysis

max time kernel
26s
max time network
39s
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_strings_set.h
Size

1016B
MD5

a0b66bb44bb7b4868956603968c74c06
SHA1

14d9e14217623ca869b201514377554692ab647c
SHA256

e27729ae60ee3bf2dda6bc0586a2f996d638414220bc2d7acb167a1f306ba24f
SHA512

d76e6f02ec62188a439e8b82de64bab55d6c8040ff3d85421eacb7cbc2740bb950fd22251b18aebf1982abbb7c4fb55a05ebd7660ac684b6023e8bde75c5f3b8

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-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.h	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.h\ = "h_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\h_auto_file\shell\open	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

pid	Process
1528	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 308	1376	cmd.exe	29
PID 1376 wrote to memory of 308	1376	cmd.exe	29
PID 1376 wrote to memory of 308	1376	cmd.exe	29
PID 308 wrote to memory of 1528	308	rundll32.exe	30
PID 308 wrote to memory of 1528	308	rundll32.exe	30
PID 308 wrote to memory of 1528	308	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\include\secommon\se_strings_set.h
1⤵
- Suspicious use of WriteProcessMemory
PID:1376
- 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_strings_set.h
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:308
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\include\secommon\se_strings_set.h
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1528

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact