Analysis

  • max time kernel
    43s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 19:48

General

  • Target

    00570cda65504949c9e47e4901c7b503c13b0c981d7df20182824ed65c858c39.exe

  • Size

    235KB

  • MD5

    2b68b4ac5925dc134631ff4555c5aea5

  • SHA1

    ed0112fa289ed48c5b541eec39fd1554ae08ab9f

  • SHA256

    00570cda65504949c9e47e4901c7b503c13b0c981d7df20182824ed65c858c39

  • SHA512

    77ce92481066a3a6efd68055b5551562d8997900d65f9b888cd6d3a485aac459b46c0aab2407828e73c28bdcec9bfd2d2ad0933109d9584ed1ee06fb02601803

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • suricata: ET MALWARE Win32/BlackNET CnC Keep-Alive

    suricata: ET MALWARE Win32/BlackNET CnC Keep-Alive

  • Deletes itself 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\00570cda65504949c9e47e4901c7b503c13b0c981d7df20182824ed65c858c39.exe
    "C:\Users\Admin\AppData\Local\Temp\00570cda65504949c9e47e4901c7b503c13b0c981d7df20182824ed65c858c39.exe"
    1⤵
    • Windows security modification
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" Get-MpPreference -verbose
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:276
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\00570cda65504949c9e47e4901c7b503c13b0c981d7df20182824ed65c858c39.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Windows\system32\PING.EXE
        ping 1.1.1.1 -n 5 -w 5000
        3⤵
        • Runs ping.exe
        PID:1472

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

2
T1089

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/276-56-0x0000000000000000-mapping.dmp
  • memory/276-58-0x000007FEEC370000-0x000007FEECD93000-memory.dmp
    Filesize

    10.1MB

  • memory/276-60-0x000007FEEB810000-0x000007FEEC36D000-memory.dmp
    Filesize

    11.4MB

  • memory/276-61-0x00000000024D4000-0x00000000024D7000-memory.dmp
    Filesize

    12KB

  • memory/276-62-0x00000000024DB000-0x00000000024FA000-memory.dmp
    Filesize

    124KB

  • memory/1472-64-0x0000000000000000-mapping.dmp
  • memory/1632-63-0x0000000000000000-mapping.dmp
  • memory/1992-54-0x0000000000DA0000-0x0000000000DDE000-memory.dmp
    Filesize

    248KB

  • memory/1992-55-0x000007FEFC331000-0x000007FEFC333000-memory.dmp
    Filesize

    8KB

  • memory/1992-59-0x000000001A9D9000-0x000000001A9F8000-memory.dmp
    Filesize

    124KB