9c3a2fbdc44090253a701eff4bc92bb248ef35f76ad0c9bcb48ce041631d548d

Analysis

max time kernel
11s
max time network
15s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
07-08-2024 11:03

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General

Target

auth.hpp
Size

1KB
MD5

68ca7e05166eb5e3d6de4fc6e52749ba
SHA1

343e9a636141ee4cf970765bd707fd56a7f2bd02
SHA256

3414a4cb52b4efadfb3c86d451542adbfddd02f6b988c0855052ec287b308222
SHA512

1608ea43f38ec60d3a059279994c3db91be1e3de183bd5aa0464fb22f2f231a604b905e419ac730553f8f20b9206e7e096b12dda7794f7cd2fedb6b20a112bb1

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 12 IoCs

Processes:

rundll32.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell\edit\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell\open	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.hpp	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell\edit	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\hpp_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.hpp\ = "hpp_auto_file"	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

Processes:

NOTEPAD.EXE

pid	Process
2864	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	Process	procid_target
PID 2240 wrote to memory of 3028	2240	cmd.exe	30
PID 2240 wrote to memory of 3028	2240	cmd.exe	30
PID 2240 wrote to memory of 3028	2240	cmd.exe	30
PID 3028 wrote to memory of 2864	3028	rundll32.exe	31
PID 3028 wrote to memory of 2864	3028	rundll32.exe	31
PID 3028 wrote to memory of 2864	3028	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\auth.hpp
1⤵
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\auth.hpp
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\auth.hpp
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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