Analysis

  • max time kernel
    114s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 03:57

General

  • Target

    92953cba343b187b62ecabbb8f328730N.exe

  • Size

    115KB

  • MD5

    92953cba343b187b62ecabbb8f328730

  • SHA1

    54209fb6a4006b2e7e0730b71655cf6f0960026d

  • SHA256

    83241a9eda0be76566dac2f9235a756f28c14d8e1c27ab3b721dea0f194b7dc4

  • SHA512

    5f3a04a3740904d59d5d78f8c823dc6d70d5a7f38ed9ff964ddcb7cbe96726cf8f06d0bb6a7978ac3c09d33235f3fa17d5ac7c3315db71b9d01637b24438a9a2

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuM6:P5eznsjsguGDFqGZ2r6

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 1 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\92953cba343b187b62ecabbb8f328730N.exe
    "C:\Users\Admin\AppData\Local\Temp\92953cba343b187b62ecabbb8f328730N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1072
    • 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:4552
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:1860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 80
          4⤵
          • Program crash
          PID:1364
      • 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:4864
        • 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:4048
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1860 -ip 1860
    1⤵
      PID:2776

    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

      115KB

      MD5

      a0bf90a8961293214dc6ae709d4cbe9c

      SHA1

      19a0f9a85103f60e59d767c227e6da0fbf77b7e5

      SHA256

      9cc5e1f8d2aacb4ceafc8745f3319909113c4d08a7e62582ed0ced4c69b3ba96

      SHA512

      1d776c3481c25f02e98c6f56582b83bd90d4d558452e5caeaee925bfa2ef5815411950b3b19389848ff0c68c803538294be12ea0b8b4b9c19b14084d6c629a35

    • memory/1072-1-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/1072-16-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/1072-0-0x00000000751B2000-0x00000000751B3000-memory.dmp

      Filesize

      4KB

    • memory/4552-27-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/4552-17-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/4864-24-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/4864-18-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/4864-25-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/4864-26-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/4864-28-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB

    • memory/4864-29-0x00000000751B0000-0x0000000075761000-memory.dmp

      Filesize

      5.7MB