Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    01-06-2022 09:10

General

  • Target

    Quax0r.exe

  • Size

    16KB

  • MD5

    779b96f25a5c23fb88062503290e69ce

  • SHA1

    1d3b85c38418d296ced87fb7155e40aad8cb0773

  • SHA256

    cd1bb0b84729b272e28a48cdfc22ef1f2577e4a1779a9fe871e54cf71707ded8

  • SHA512

    7ac94fb7d832302f0aba124f41e168d00e1b3567ff88b7938c25cfb4dd72539e80b56862abf65be99f800d2dec034dbab56be3d5021175a314beee65def9ce3a

Score
7/10

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 30 IoCs
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 64 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry class 6 IoCs
  • Runs net.exe
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quax0r.exe
    "C:\Users\Admin\AppData\Local\Temp\Quax0r.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c net users %username% LOCKEDBYROZBEHOFSATAN
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\net.exe
        net users Admin LOCKEDBYROZBEHOFSATAN
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1684
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 users Admin LOCKEDBYROZBEHOFSATAN
          4⤵
            PID:2020
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c assoc .exe=RozbehOfSatanFile && assoc .bat=RozbehOfSatanFile && assoc .cmd=RozbehOfSatanFile
        2⤵
        • Modifies registry class
        PID:1752
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c echo ^[autorun^] > ..\\autorun.inf
        2⤵
          PID:1172
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c echo open^=WindowsScan^.exe >> ..\\autorun.inf
          2⤵
            PID:1444
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c netsh Interface Set Interface Wi-Fi 12 disable
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1284
            • C:\Windows\SysWOW64\netsh.exe
              netsh Interface Set Interface Wi-Fi 12 disable
              3⤵
                PID:1612
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /c taskkill /im chrome.exe /f && taskkill /im WireShark.exe /f && taskkill /im MSASCUI.exe /f && taskkill /im taskmgr.exe /f && taskkill /im regedit.exe /f && taskkill /im Kaspersky.exe /f && taskkill /im msseces.exe /f && taskkill /im nod32.exe /f && taskkill /im msmpeng.exe /f && taskkill /im navapsvc.exe /f && taskkill /im avkwctl.exe /f && taskkill /im fsav32.exe /f && rundll32 keyboard,disable
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:360
              • C:\Windows\SysWOW64\taskkill.exe
                taskkill /im chrome.exe /f
                3⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:1720

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Initial Access

          Replication Through Removable Media

          1
          T1091

          Credential Access

          Credentials in Files

          1
          T1081

          Lateral Movement

          Replication Through Removable Media

          1
          T1091

          Collection

          Data from Local System

          1
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\autorun.inf
            Filesize

            35B

            MD5

            261490e22651f58aeb72b82b148f1e02

            SHA1

            f180054e9592561288db216c9fb156a99ad5830f

            SHA256

            b12b5eb5be8ef735ed43076e438f438a34adf362a27b187aeba422a4e831b4ba

            SHA512

            83edf93509d5cc5f275c5877bcf571cf5a8716df603783155bb88338008d409ff5041dfb040253c400750e000e51c9eb8c26cb714cd06186ab9b00fc44b2769c

          • memory/360-69-0x0000000000000000-mapping.dmp
          • memory/1172-60-0x0000000000000000-mapping.dmp
          • memory/1284-66-0x0000000000000000-mapping.dmp
          • memory/1328-58-0x0000000000000000-mapping.dmp
          • memory/1444-61-0x0000000000000000-mapping.dmp
          • memory/1612-71-0x0000000000000000-mapping.dmp
          • memory/1668-73-0x0000000071040000-0x0000000071D5D000-memory.dmp
            Filesize

            13.1MB

          • memory/1668-76-0x0000000070800000-0x0000000070F3E000-memory.dmp
            Filesize

            7.2MB

          • memory/1668-64-0x00000000741A0000-0x0000000074980000-memory.dmp
            Filesize

            7.9MB

          • memory/1668-79-0x0000000071F00000-0x00000000720D1000-memory.dmp
            Filesize

            1.8MB

          • memory/1668-67-0x0000000071F00000-0x00000000720D1000-memory.dmp
            Filesize

            1.8MB

          • memory/1668-78-0x0000000072AF0000-0x0000000073E7F000-memory.dmp
            Filesize

            19.6MB

          • memory/1668-57-0x00000000720E0000-0x0000000072AF0000-memory.dmp
            Filesize

            10.1MB

          • memory/1668-56-0x0000000072AF0000-0x0000000073E7F000-memory.dmp
            Filesize

            19.6MB

          • memory/1668-70-0x0000000071D60000-0x0000000071EF4000-memory.dmp
            Filesize

            1.6MB

          • memory/1668-55-0x00000000762C1000-0x00000000762C3000-memory.dmp
            Filesize

            8KB

          • memory/1668-77-0x00000000706A0000-0x0000000070769000-memory.dmp
            Filesize

            804KB

          • memory/1668-54-0x0000000001130000-0x000000000113C000-memory.dmp
            Filesize

            48KB

          • memory/1668-74-0x0000000070F40000-0x000000007103C000-memory.dmp
            Filesize

            1008KB

          • memory/1684-63-0x0000000000000000-mapping.dmp
          • memory/1720-72-0x0000000000000000-mapping.dmp
          • memory/1752-59-0x0000000000000000-mapping.dmp
          • memory/2020-68-0x0000000000000000-mapping.dmp