Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2024, 21:09

General

  • Target

    78641128d1339b6920de0b0c87792506.exe

  • Size

    402KB

  • MD5

    78641128d1339b6920de0b0c87792506

  • SHA1

    d7df45b7383f80d12f65f010f939e5d66bb704d5

  • SHA256

    d5e37030c7b9015b254892672789bc573aab50af39b9b4b9650ce506a74bdc4c

  • SHA512

    92f05bb255c64da66fe0157c7ad2112bc84964fc936fee9dde67f8f083d990ba7b8b0d795e0df86275dd98c4954ca63ec4cbd09433e1f01d802c43e4dd7b29d9

  • SSDEEP

    6144:hmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDg2:mSmLAuEY71fviagATFmebVQDcYca

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

pdf

C2

hhhmach.ddns.net:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78641128d1339b6920de0b0c87792506.exe
    "C:\Users\Admin\AppData\Local\Temp\78641128d1339b6920de0b0c87792506.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c test.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Users\Admin\AppData\Local\Temp\test.exe
        test.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2104
        • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
          "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1860
  • C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
    1⤵
    • Modifies Windows Firewall
    PID:2764

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\test.exe

          Filesize

          78KB

          MD5

          42c5854aa0709d8bf6c28ea82c67b9a5

          SHA1

          124ea473f0572009de85a4a46f361109f4fae7d6

          SHA256

          71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

          SHA512

          c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

        • memory/1860-17-0x0000000000BC0000-0x0000000000C00000-memory.dmp

          Filesize

          256KB

        • memory/1860-16-0x0000000074CE0000-0x000000007528B000-memory.dmp

          Filesize

          5.7MB

        • memory/1860-20-0x0000000000BC0000-0x0000000000C00000-memory.dmp

          Filesize

          256KB

        • memory/1860-21-0x0000000074CE0000-0x000000007528B000-memory.dmp

          Filesize

          5.7MB

        • memory/2104-5-0x0000000074CE0000-0x000000007528B000-memory.dmp

          Filesize

          5.7MB

        • memory/2104-7-0x0000000074CE0000-0x000000007528B000-memory.dmp

          Filesize

          5.7MB

        • memory/2104-8-0x0000000000410000-0x0000000000450000-memory.dmp

          Filesize

          256KB

        • memory/2104-15-0x0000000074CE0000-0x000000007528B000-memory.dmp

          Filesize

          5.7MB

        • memory/2512-0-0x0000000000400000-0x00000000004FA000-memory.dmp

          Filesize

          1000KB

        • memory/2512-18-0x0000000000400000-0x00000000004FA000-memory.dmp

          Filesize

          1000KB