Analysis

  • max time kernel
    115s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 13:55

General

  • Target

    7abd36fd92bf444bcb8472ea1826d8e0N.exe

  • Size

    115KB

  • MD5

    7abd36fd92bf444bcb8472ea1826d8e0

  • SHA1

    88a481771faf9222dac2cf0527df77924718e50e

  • SHA256

    caad0b85aaaf8044a8a4482cae5b1908295f68378a8c5cad31dad01024cabe82

  • SHA512

    d43ad84cede27c5b7ff33befea5c655331d82ffdccf98659af7021d5334238a186f9214c9795a927daf4dcda75c6d9cbc440300047ee550ac7d816159c3ec684

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL10:P5eznsjsguGDFqGZ2rDL10

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7abd36fd92bf444bcb8472ea1826d8e0N.exe
    "C:\Users\Admin\AppData\Local\Temp\7abd36fd92bf444bcb8472ea1826d8e0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3680
    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
      "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3412
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:4672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 72
          4⤵
          • Program crash
          PID:1260
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:5068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5068 -s 80
          4⤵
          • Program crash
          PID:4544
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:1660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 12
          4⤵
          • Program crash
          PID:4780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 52
          4⤵
          • Program crash
          PID:4032
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1916
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5068 -ip 5068
    1⤵
      PID:5092
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1660 -ip 1660
      1⤵
        PID:4244
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4672 -ip 4672
        1⤵
          PID:3104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1660 -ip 1660
          1⤵
            PID:3312

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

            Filesize

            400B

            MD5

            0a9b4592cd49c3c21f6767c2dabda92f

            SHA1

            f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

            SHA256

            c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

            SHA512

            6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

          • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

            Filesize

            116KB

            MD5

            7453cf06d96e2cd200ab6e4797f85545

            SHA1

            7b98dffdad66681bffb1cf7c988e086c4a3120bd

            SHA256

            f60cbd7c53ceb043936f96ca44a85803fe3130b04c2c58f4864a2e253be489d7

            SHA512

            c586df56343a280f8f662b3ffd1a8c9b99afa9dc3f73976c8e5392c7a18a0431aa5a03a14463c68ea85d19ca3afd4ff2241adee4f6a7ad03896b14b951dadba1

          • memory/1608-33-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/1608-31-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/1608-21-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/1660-23-0x0000000000400000-0x0000000000420000-memory.dmp

            Filesize

            128KB

          • memory/3412-18-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/3412-20-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/3412-19-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/3412-32-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/3680-0-0x00000000746F2000-0x00000000746F3000-memory.dmp

            Filesize

            4KB

          • memory/3680-17-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/3680-2-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB

          • memory/3680-1-0x00000000746F0000-0x0000000074CA1000-memory.dmp

            Filesize

            5.7MB