99dda908d9a3c3e697a9b2a42b765ca60ae5b404ffb651312ac8e2ddab9ef9fc

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-01-2024 13:23

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General

Target

sources/findduqusys.cpp
Size

11KB
MD5

80b135adc8ce5409c34b38f85c5ed829
SHA1

0504b488046b898eef81de414aa299ce6eeeedf3
SHA256

6ce4e4f59e073ef9101b20f20e4a989cf5b0a25a3f024ec5cfe5264167a664a1
SHA512

609afa27c62d6b1db8d473ea314f7821fb95a26d6d160788affb2a1e9e3ee4b8c9ea9dbd8376dec97690674756e360fbd050c0fc202e293f799c372442c34a76
SSDEEP

192:A4CE2AcuRrOn41RMyFN2I+Wep3/fpZ225by23EVwZ2gtZD0qR2nlRBRN:4ORMZVui21

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell\open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.cpp	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.cpp\ = "cpp_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\cpp_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2788	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2972	2204	cmd.exe	29
PID 2204 wrote to memory of 2972	2204	cmd.exe	29
PID 2204 wrote to memory of 2972	2204	cmd.exe	29
PID 2972 wrote to memory of 2788	2972	rundll32.exe	30
PID 2972 wrote to memory of 2788	2972	rundll32.exe	30
PID 2972 wrote to memory of 2788	2972	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\sources\findduqusys.cpp
1⤵
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\sources\findduqusys.cpp
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\sources\findduqusys.cpp
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2788

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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