Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    10-01-2022 12:17

General

  • Target

    DEC SOA_09012022.exe

  • Size

    373KB

  • MD5

    6046b2f34b67e06c817f4375c6d26a54

  • SHA1

    2230944a4216a07fde067866af7e81e1a52e8535

  • SHA256

    56d2b2837e2856b61ad276a3b52151851a79e366c22c03652caf2ad2b50623db

  • SHA512

    542a355b0b51c43d7462f255822401fcce56ba8a3c1f117a578f68c762cd329bf533667e8f6c1f56bad8ff71678954b59edec1da725b2a837bb401edcf94b2ac

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

igwa

Decoy

listingswithalex.com

funtabse.com

aydenwalling.com

prochal.net

superfoodsnederland.com

moldluck.com

dianekgordon.store

regionalhomescommercial.com

mysecuritymadesimple.com

malwaremastery.com

kodaikeiko.com

jrzg996.com

agricurve.net

songlingjiu.com

virginianundahfishingclub.com

friendschance.com

pastelpresents.com

answertitles.com

survival-hunter.com

nxfddl.com

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 3 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 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 behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1300
    • C:\Users\Admin\AppData\Local\Temp\DEC SOA_09012022.exe
      "C:\Users\Admin\AppData\Local\Temp\DEC SOA_09012022.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Users\Admin\AppData\Local\Temp\DEC SOA_09012022.exe
        "C:\Users\Admin\AppData\Local\Temp\DEC SOA_09012022.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1096
    • C:\Windows\SysWOW64\autoconv.exe
      "C:\Windows\SysWOW64\autoconv.exe"
      2⤵
        PID:268
      • C:\Windows\SysWOW64\raserver.exe
        "C:\Windows\SysWOW64\raserver.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:472
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Local\Temp\DEC SOA_09012022.exe"
          3⤵
          • Deletes itself
          PID:1000

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nstA7A6.tmp\rwxef.dll
      MD5

      52944a6532acdb2543a8f6076c5b1eeb

      SHA1

      f01e61cd9d9b724e1d77851440493858c008100b

      SHA256

      5432fa320cbf8e925f37aae93da2602d41e912dd8141332e38fb49b5c955290e

      SHA512

      b5510b843f40ef0e4d30ecac150409634cad612701575ca4f022bee266dba9b703cfdbd60c11018001d030ed45f9496815773d9dda3953bfe85af4d99260e22a

    • memory/472-67-0x0000000001C90000-0x0000000001D20000-memory.dmp
      Filesize

      576KB

    • memory/472-65-0x00000000000C0000-0x00000000000E9000-memory.dmp
      Filesize

      164KB

    • memory/472-66-0x0000000001E20000-0x0000000002123000-memory.dmp
      Filesize

      3.0MB

    • memory/472-64-0x00000000002D0000-0x00000000002EC000-memory.dmp
      Filesize

      112KB

    • memory/472-61-0x0000000000000000-mapping.dmp
    • memory/956-53-0x0000000075D11000-0x0000000075D13000-memory.dmp
      Filesize

      8KB

    • memory/1000-63-0x0000000000000000-mapping.dmp
    • memory/1096-56-0x000000000041D440-mapping.dmp
    • memory/1096-59-0x0000000000490000-0x00000000004A1000-memory.dmp
      Filesize

      68KB

    • memory/1096-57-0x0000000000700000-0x0000000000A03000-memory.dmp
      Filesize

      3.0MB

    • memory/1096-55-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1300-60-0x0000000006970000-0x0000000006B02000-memory.dmp
      Filesize

      1.6MB

    • memory/1300-68-0x00000000073B0000-0x0000000007508000-memory.dmp
      Filesize

      1.3MB