373fe4cfabe01bbd49f587c56683e89c9716dee5ad35ce2a94d361501dd42889

Analysis

max time kernel
600s
max time network
421s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
26-10-2022 22:14

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General

Target

1a19ad73601c5636654ea6b3167caba9de1c572ab2632b87ce9d702d0dcacf0b_1.pcap
Size

133KB
MD5

490cbbea1249aa512137f16e859af703
SHA1

52244eb9f2b6765f3ce24ec57c60820029fbb640
SHA256

373fe4cfabe01bbd49f587c56683e89c9716dee5ad35ce2a94d361501dd42889
SHA512

c1cd064ceca14a15fa5623bfa29ea6abfbc10d0f18e57ef9859465db235e232c1598a4dd48c7ff1f0ed5895b42ca499e47e8743a5ab35145090c73fc2405af94
SSDEEP

3072:wYAMCM0JTsIK71mGRrUnfwvh9T3lSk90iKtSI:wYAMOT3KhmGtmf0hGl

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 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pcap_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.pcap	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pcap_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.pcap\ = "pcap_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pcap_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pcap_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pcap_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\pcap_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
320	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
320	AcroRd32.exe
320	AcroRd32.exe
320	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 1076	1456	cmd.exe	27
PID 1456 wrote to memory of 1076	1456	cmd.exe	27
PID 1456 wrote to memory of 1076	1456	cmd.exe	27
PID 1076 wrote to memory of 320	1076	rundll32.exe	28
PID 1076 wrote to memory of 320	1076	rundll32.exe	28
PID 1076 wrote to memory of 320	1076	rundll32.exe	28
PID 1076 wrote to memory of 320	1076	rundll32.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\1a19ad73601c5636654ea6b3167caba9de1c572ab2632b87ce9d702d0dcacf0b_1.pcap
1⤵
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\1a19ad73601c5636654ea6b3167caba9de1c572ab2632b87ce9d702d0dcacf0b_1.pcap
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\1a19ad73601c5636654ea6b3167caba9de1c572ab2632b87ce9d702d0dcacf0b_1.pcap"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:320

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

Replay Monitor

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Downloads

memory/320-82-0x0000000075B51000-0x0000000075B53000-memory.dmp

Filesize
8KB

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memory/1456-54-0x000007FEFB5E1000-0x000007FEFB5E3000-memory.dmp

Filesize
8KB

Download