Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21/06/2022, 10:17

General

  • Target

    triage_dropped_file.exe

  • Size

    370KB

  • MD5

    1d93fbbb1895e55356b63fd37073ef62

  • SHA1

    994616598f9657eac8c3ebf8ce013aa3dc457864

  • SHA256

    b8cef7577e09d894f2136407634962aa9574f00c3c09651cafeffbed4e9b220a

  • SHA512

    56af7465c21d7ef8a4bd75696b90a17c79acbddbdf0c04134e64ed5b767d3e9acdabd062ef5b41844e57defad23ce26e8073b53cd0d6efac6bad2fd8dd3594de

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

mt88

Decoy

syzbf32.xyz

pertlines.com

vybaveniprocyklostezky.com

elianmsalas.tech

a-snag-tokei-kaitori.com

tuvistaing.com

whoyoucall.net

l8e9gr.xyz

sophrologuemontevrain77.com

ciclean.com

the-roel.com

campgreencove.com

foremostbookkeeping.com

zamanscorner.com

efeturozemniyet.com

penelope.team

murata.life

solfuls.com

tradefitinvesting.com

skinbid.pro

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 5 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
      "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1884
    • C:\Windows\SysWOW64\NETSTAT.EXE
      "C:\Windows\SysWOW64\NETSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1524
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        3⤵
          PID:1492

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1172-55-0x0000000000280000-0x00000000002B4000-memory.dmp

            Filesize

            208KB

          • memory/1172-54-0x0000000000EF0000-0x0000000000F52000-memory.dmp

            Filesize

            392KB

          • memory/1396-64-0x0000000007110000-0x0000000007264000-memory.dmp

            Filesize

            1.3MB

          • memory/1396-74-0x0000000004330000-0x0000000004407000-memory.dmp

            Filesize

            860KB

          • memory/1396-72-0x0000000004330000-0x0000000004407000-memory.dmp

            Filesize

            860KB

          • memory/1524-68-0x00000000002D0000-0x00000000002D9000-memory.dmp

            Filesize

            36KB

          • memory/1524-69-0x0000000000080000-0x00000000000AB000-memory.dmp

            Filesize

            172KB

          • memory/1524-70-0x0000000001FD0000-0x00000000022D3000-memory.dmp

            Filesize

            3.0MB

          • memory/1524-71-0x0000000000590000-0x0000000000620000-memory.dmp

            Filesize

            576KB

          • memory/1524-73-0x0000000000080000-0x00000000000AB000-memory.dmp

            Filesize

            172KB

          • memory/1884-63-0x00000000003D0000-0x00000000003E1000-memory.dmp

            Filesize

            68KB

          • memory/1884-62-0x00000000009C0000-0x0000000000CC3000-memory.dmp

            Filesize

            3.0MB

          • memory/1884-66-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1884-59-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1884-57-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1884-56-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB