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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    30/04/2024, 01:08

General

  • Target

    554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe

  • Size

    158KB

  • MD5

    3eb8c476c0abcd01fdb799de83503e12

  • SHA1

    138aa012bb3b20a79aaf016af172a1b3106a7304

  • SHA256

    554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986

  • SHA512

    ed277e52d5348d1401a51f002e9f03bfada6481b2cab827f13fa39d54f5c42d4e4ac6627ced47f98fbc22010b044fb0d09b55c6133fc2746e9e78234975c2f85

  • SSDEEP

    3072:tf/J2ULiTehI8FrkZTFieSzoSUYSziUP0ZMJG:32UL2i9FKFHd4SziUP0

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

MyBot

C2

asero23.ddns.net:5552

Mutex

863290bfb622fdfe0ad4e1b97536ae62

Attributes
  • reg_key

    863290bfb622fdfe0ad4e1b97536ae62

  • splitter

    Y262SUCZ4UJJ

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe
    "C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c echo on error resume next:CreateObject("WScript.Shell").Run "C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe",1: >"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"
      2⤵
      • Drops startup file
      PID:2232
    • C:\Windows\SysWOW64\cmd.exe
      /c net stop MpsSvc
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\net.exe
        net stop MpsSvc
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop MpsSvc
          4⤵
            PID:3024
      • C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe
        C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2548
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe" "554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe" ENABLE
          3⤵
          • Modifies Windows Firewall
          PID:2716

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe

      Filesize

      104KB

      MD5

      42ccd69a3be9618d329de0ea0fde3a81

      SHA1

      47e9897f303496eb9cd5883f9cdb283b6eee65d3

      SHA256

      14137fcc8697e967b251fd0fafbdf79af8db4c1a67f2eafe53756e3ad80a9bef

      SHA512

      33d95b20ce606441c89dbc575c8e884196a19db056ffd9d54a5e0c57f3928b0d064b6270e4abf033046606e0456156faba3f3a8e6a353e924a7461e61e46bfae

    • \Users\Admin\AppData\Local\Temp\554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986.exe

      Filesize

      158KB

      MD5

      3eb8c476c0abcd01fdb799de83503e12

      SHA1

      138aa012bb3b20a79aaf016af172a1b3106a7304

      SHA256

      554f40d4d4e6d80d96c5fc1b41afb7268a0b09b375adc3bcb1e10b1ff2eed986

      SHA512

      ed277e52d5348d1401a51f002e9f03bfada6481b2cab827f13fa39d54f5c42d4e4ac6627ced47f98fbc22010b044fb0d09b55c6133fc2746e9e78234975c2f85

    • memory/2216-0-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/2216-35-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/2216-19-0x0000000000470000-0x00000000004DB000-memory.dmp

      Filesize

      428KB

    • memory/2548-9-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-26-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-29-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-17-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-11-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-32-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-7-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-15-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-5-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-31-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-22-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2548-13-0x0000000000400000-0x0000000000978000-memory.dmp

      Filesize

      5.5MB

    • memory/2548-37-0x0000000002400000-0x0000000002440000-memory.dmp

      Filesize

      256KB

    • memory/2548-36-0x0000000073F50000-0x00000000744FB000-memory.dmp

      Filesize

      5.7MB

    • memory/2548-38-0x0000000073F50000-0x00000000744FB000-memory.dmp

      Filesize

      5.7MB

    • memory/2548-3-0x0000000000300000-0x0000000000400000-memory.dmp

      Filesize

      1024KB

    • memory/2548-39-0x0000000073F50000-0x00000000744FB000-memory.dmp

      Filesize

      5.7MB