1fe44854416989533fde54848fdb764afb5c4e08ec25d8da4b26f003de1385a6

Analysis

max time kernel
30s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
13/03/2023, 13:37

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General

Target

scenario2-traffic-capture.pcap
Size

4.6MB
MD5

8b49c76c8f758b394ebe94a242617da9
SHA1

0a505192a952f17259cb5bdbd595e6ce0c4a63fa
SHA256

1fe44854416989533fde54848fdb764afb5c4e08ec25d8da4b26f003de1385a6
SHA512

f4f1cd8a4110957fb11a9d850c43b426f81f6f501d339f7dfadcb37f778e718212407d42b3a50772f3fd0ae13acba0f4e8849c0278181de7941181efb6e21aec
SSDEEP

49152:nBC1E8vBbZmUVTl3qGJdrLlWq2d+hhwbioE4nlXCAR6fHJsxMLzbkNlWwQR5k4kh:KZNZBH+o8NYk/YrUZMYN2Gd

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 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\pcap_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.pcap\ = "pcap_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\pcap_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\pcap_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\pcap_auto_file\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\pcap_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\.pcap	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000_CLASSES\pcap_auto_file\shell\open\command\ = "\"%ProgramFiles%\\Windows NT\\Accessories\\WORDPAD.EXE\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
872	WORDPAD.EXE
872	WORDPAD.EXE
872	WORDPAD.EXE
872	WORDPAD.EXE
872	WORDPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1240 wrote to memory of 1056	1240	cmd.exe	28
PID 1240 wrote to memory of 1056	1240	cmd.exe	28
PID 1240 wrote to memory of 1056	1240	cmd.exe	28
PID 1056 wrote to memory of 872	1056	rundll32.exe	29
PID 1056 wrote to memory of 872	1056	rundll32.exe	29
PID 1056 wrote to memory of 872	1056	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\scenario2-traffic-capture.pcap
1⤵
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\scenario2-traffic-capture.pcap
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Program Files\Windows NT\Accessories\WORDPAD.EXE
    "C:\Program Files\Windows NT\Accessories\WORDPAD.EXE" "C:\Users\Admin\AppData\Local\Temp\scenario2-traffic-capture.pcap"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:872

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

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Downloads

memory/872-79-0x0000000001D90000-0x0000000001D91000-memory.dmp

Filesize
4KB

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memory/872-80-0x0000000001D90000-0x0000000001D91000-memory.dmp

Filesize
4KB

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