Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    22-09-2021 13:24

General

  • Target

    ab5bfb7c642e59a9c8a6f372ee4847bf5cbc9222ba8a4459997e7cd64cb97145.exe

  • Size

    310KB

  • MD5

    7d800ad9f415b03e6bb9a029fa57a3ec

  • SHA1

    73d737b77a8fea41dad18dc6cdde0892b0dc9796

  • SHA256

    ab5bfb7c642e59a9c8a6f372ee4847bf5cbc9222ba8a4459997e7cd64cb97145

  • SHA512

    5549ec9bdf48419ad8edaceb1120ad4c8ccc0ead7057a7349ca40ccd997c70244eb1c102a4f63e03acd76947a76a0456dc00473458c18509b803451779c5bf0a

Score
10/10

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE ⋅ 1 IoCs
  • Modifies Windows Firewall ⋅ 1 TTPs
  • Drops startup file ⋅ 2 IoCs
  • Drops file in Windows directory ⋅ 2 IoCs
  • Enumerates physical storage devices ⋅ 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken ⋅ 33 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab5bfb7c642e59a9c8a6f372ee4847bf5cbc9222ba8a4459997e7cd64cb97145.exe
    "C:\Users\Admin\AppData\Local\Temp\ab5bfb7c642e59a9c8a6f372ee4847bf5cbc9222ba8a4459997e7cd64cb97145.exe"
    Drops file in Windows directory
    Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Users\Admin\AppData\Roaming\System.exe
      "C:\Users\Admin\AppData\Roaming\System.exe"
      Executes dropped EXE
      Drops startup file
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3300
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
        PID:3664

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Privilege Escalation

                      Replay Monitor

                      00:00 00:00

                      Downloads

                      • C:\Users\Admin\AppData\Roaming\System.exe
                        MD5

                        7d800ad9f415b03e6bb9a029fa57a3ec

                        SHA1

                        73d737b77a8fea41dad18dc6cdde0892b0dc9796

                        SHA256

                        ab5bfb7c642e59a9c8a6f372ee4847bf5cbc9222ba8a4459997e7cd64cb97145

                        SHA512

                        5549ec9bdf48419ad8edaceb1120ad4c8ccc0ead7057a7349ca40ccd997c70244eb1c102a4f63e03acd76947a76a0456dc00473458c18509b803451779c5bf0a

                      • C:\Users\Admin\AppData\Roaming\System.exe
                        MD5

                        7d800ad9f415b03e6bb9a029fa57a3ec

                        SHA1

                        73d737b77a8fea41dad18dc6cdde0892b0dc9796

                        SHA256

                        ab5bfb7c642e59a9c8a6f372ee4847bf5cbc9222ba8a4459997e7cd64cb97145

                        SHA512

                        5549ec9bdf48419ad8edaceb1120ad4c8ccc0ead7057a7349ca40ccd997c70244eb1c102a4f63e03acd76947a76a0456dc00473458c18509b803451779c5bf0a

                      • memory/3300-116-0x0000000000000000-mapping.dmp
                      • memory/3300-119-0x0000000002AA0000-0x0000000002AA1000-memory.dmp
                      • memory/3664-120-0x0000000000000000-mapping.dmp
                      • memory/4088-115-0x0000000002D90000-0x0000000002D91000-memory.dmp