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Analysis

  • max time kernel
    115s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/09/2024, 22:22

General

  • Target

    d0e8c16e6646f3eaaf78d273139f2df0N.exe

  • Size

    116KB

  • MD5

    d0e8c16e6646f3eaaf78d273139f2df0

  • SHA1

    6e6758b239b8cab23e04d208c0d3702cfb7c8b9b

  • SHA256

    40c7945ff7ba7aad8001b48f637996eb473dab74d825e87f7c4494a162af2254

  • SHA512

    a620c5c3df8351dba88308d3334ea43808566dcdfc45327655ef68cbccb61de5198727db56a41badd97d06b5c6b38c82b3ff85f4e88f301634f81009b84709b0

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDIR:P5eznsjsguGDFqGZ2rDIR

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 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 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 2 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 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d0e8c16e6646f3eaaf78d273139f2df0N.exe
    "C:\Users\Admin\AppData\Local\Temp\d0e8c16e6646f3eaaf78d273139f2df0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4860
    • 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:716
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 12
          4⤵
          • Program crash
          PID:3496
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 20
          4⤵
          • Program crash
          PID:2020
      • 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:2304
        • 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:4704
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 436 -ip 436
    1⤵
      PID:4032
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 436 -ip 436
      1⤵
        PID:3624

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      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

        34d01d37db113263942800fa740b8392

        SHA1

        6ce7a2934780e9d41a02f62bd0083bcd09f52fa0

        SHA256

        1811a989362102549a002519e986fe2dc554646eff4cd521135fc623258f77cf

        SHA512

        21443db761fc5422c6384d24eeb8100f3caab9e2846317b8cbd2449a005c2f6eaf6fe31905e5097486a1c339aadfe2aaa819c9e117c20d0e61ee8b80cc81e4b9

      • memory/436-23-0x0000000000400000-0x0000000000420000-memory.dmp

        Filesize

        128KB

      • memory/716-20-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/716-30-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/716-21-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/2304-28-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/2304-22-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/2304-29-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/2304-31-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/4860-19-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/4860-7-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/4860-6-0x0000000075432000-0x0000000075433000-memory.dmp

        Filesize

        4KB

      • memory/4860-2-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB

      • memory/4860-0-0x0000000075432000-0x0000000075433000-memory.dmp

        Filesize

        4KB

      • memory/4860-1-0x0000000075430000-0x00000000759E1000-memory.dmp

        Filesize

        5.7MB