Analysis

  • max time kernel
    152s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16/06/2022, 09:44

General

  • Target

    SR2022061584,pdf.exe

  • Size

    230KB

  • MD5

    c181d4072468279090f281c81a1cccec

  • SHA1

    4eacb1d04de258fde250819018b5fba93e6bc77e

  • SHA256

    347b2260600d99e1b3007aeaf18c01e4c5bb1d9f2b97eb371c6d2d69c8ee1169

  • SHA512

    ddf8eec7a23289554b1dd863167324dfcf87d1e4d9caec97fe1fdcf56c2cf1a3970fc78d795ea7b3eb3b47c673ba485c7492883224f3323319f739c9d186f4a2

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

uugs

Decoy

dooflegogpriitives.com

designvak.com

burunghitam.com

sw-autotrader.com

rebelvulgar.top

brentwilsonphoto.com

masjidmuqarrabin.com

loyaltykleaners.com

rodfernandesmarketing.com

goshenlaboratory.com

golivehome.store

lensflareair.com

annistonescarra.com

pastedup.com

burinfohope-holding-group.com

monicaconsulting.com

theswanmarketing.com

guentherconstructionllc.com

citizenshipguides.com

aemsmc.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • 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 4 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Users\Admin\AppData\Local\Temp\SR2022061584,pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\SR2022061584,pdf.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:108
      • 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:1144
    • C:\Windows\SysWOW64\NETSTAT.EXE
      "C:\Windows\SysWOW64\NETSTAT.EXE"
      2⤵
      • Adds policy Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Gathers network information
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:964
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        3⤵
          PID:1984
        • C:\Program Files\Mozilla Firefox\Firefox.exe
          "C:\Program Files\Mozilla Firefox\Firefox.exe"
          3⤵
            PID:816

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/108-54-0x0000000000F30000-0x0000000000F6C000-memory.dmp

              Filesize

              240KB

            • memory/108-55-0x00000000003D0000-0x0000000000406000-memory.dmp

              Filesize

              216KB

            • memory/964-71-0x0000000000AB0000-0x0000000000B40000-memory.dmp

              Filesize

              576KB

            • memory/964-74-0x0000000075A61000-0x0000000075A63000-memory.dmp

              Filesize

              8KB

            • memory/964-70-0x0000000000C40000-0x0000000000F43000-memory.dmp

              Filesize

              3.0MB

            • memory/964-69-0x00000000000C0000-0x00000000000EB000-memory.dmp

              Filesize

              172KB

            • memory/964-68-0x0000000000F50000-0x0000000000F59000-memory.dmp

              Filesize

              36KB

            • memory/1144-56-0x0000000000400000-0x000000000042B000-memory.dmp

              Filesize

              172KB

            • memory/1144-64-0x0000000000200000-0x0000000000211000-memory.dmp

              Filesize

              68KB

            • memory/1144-63-0x00000000008F0000-0x0000000000BF3000-memory.dmp

              Filesize

              3.0MB

            • memory/1144-62-0x0000000000400000-0x000000000042B000-memory.dmp

              Filesize

              172KB

            • memory/1144-57-0x0000000000400000-0x000000000042B000-memory.dmp

              Filesize

              172KB

            • memory/1144-59-0x0000000000400000-0x000000000042B000-memory.dmp

              Filesize

              172KB

            • memory/1228-65-0x0000000004270000-0x000000000432B000-memory.dmp

              Filesize

              748KB

            • memory/1228-72-0x0000000005C30000-0x0000000005CEA000-memory.dmp

              Filesize

              744KB

            • memory/1228-73-0x0000000004270000-0x000000000432B000-memory.dmp

              Filesize

              748KB

            • memory/1228-75-0x0000000005C30000-0x0000000005CEA000-memory.dmp

              Filesize

              744KB