Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16/06/2022, 09:49

General

  • Target

    ordine n.223737-3748.xlsx

  • Size

    255KB

  • MD5

    7a1d66b7ff2e9ac7fa6b971165ff4e36

  • SHA1

    94ac522422a381a85649f705337e05aa517231ee

  • SHA256

    bb67823344c66355e808040a736b0cf9c4f1676429f6e643880a4f057ce0be00

  • SHA512

    d93defcbf8afc7a0fd7a512c043c22c0474296cfd17895f75a9215b9ba352dcee547a512372c1cdc04a5de2c7338fae83814f65c0ef2d327343ad3cad6f258a4

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

oecd

Decoy

mrcrickethighlights.com

milozzo.com

biggorillacreative.com

pecwi67.store

stoneeast.com

redicredi.com

warrentonvalodging.com

lexbbc.com

acmet-shirtco.com

grocits.com

vlconstruction.info

jxstore1.com

lifeenrollmarketplace.com

wgr5n.xyz

710wgm.com

ccrdidkqpoxzrrpfpmcb.com

boswellbrothersofnc.net

girajewelry.com

primesukkah.com

daotengge.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 5 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1384
    • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\ordine n.223737-3748.xlsx"
      2⤵
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\SysWOW64\cmd.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Public\vbc.exe"
        3⤵
          PID:2000
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1528
      • C:\Users\Public\vbc.exe
        "C:\Users\Public\vbc.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1744
        • C:\Users\Public\vbc.exe
          "C:\Users\Public\vbc.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1324

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • C:\Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • C:\Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • \Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • \Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • \Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • \Users\Public\vbc.exe

            Filesize

            632KB

            MD5

            f413642263b39b39fc90ea1ef32bcc01

            SHA1

            6ae21aa75be549567131a4d4acf4dfb68d40ecf7

            SHA256

            f62c3f81cd0f8db52470b8ca25ffae0c0eb20c202e90db9425e9904d3e673b8d

            SHA512

            71893e9a24e54af2acda3aea6cdc9be27c64287fb849b55b0ac0512b9aeda88a446f7054b6ccfc75668a9ce285235d970204817e786ab6409ae41a58dcd15af3

          • memory/1324-81-0x00000000008F0000-0x0000000000BF3000-memory.dmp

            Filesize

            3.0MB

          • memory/1324-74-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1324-80-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1324-82-0x00000000002D0000-0x00000000002E1000-memory.dmp

            Filesize

            68KB

          • memory/1324-85-0x0000000000450000-0x0000000000461000-memory.dmp

            Filesize

            68KB

          • memory/1324-88-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1324-76-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1324-73-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1384-86-0x0000000006720000-0x0000000006809000-memory.dmp

            Filesize

            932KB

          • memory/1384-83-0x0000000006F80000-0x00000000070F8000-memory.dmp

            Filesize

            1.5MB

          • memory/1384-97-0x0000000004C00000-0x0000000004CA6000-memory.dmp

            Filesize

            664KB

          • memory/1384-96-0x0000000004C00000-0x0000000004CA6000-memory.dmp

            Filesize

            664KB

          • memory/1564-95-0x0000000001DE0000-0x0000000001E70000-memory.dmp

            Filesize

            576KB

          • memory/1564-92-0x0000000002020000-0x0000000002323000-memory.dmp

            Filesize

            3.0MB

          • memory/1564-91-0x0000000000080000-0x00000000000AB000-memory.dmp

            Filesize

            172KB

          • memory/1564-90-0x000000004A000000-0x000000004A04C000-memory.dmp

            Filesize

            304KB

          • memory/1744-72-0x0000000000610000-0x0000000000642000-memory.dmp

            Filesize

            200KB

          • memory/1744-71-0x0000000005070000-0x00000000050D8000-memory.dmp

            Filesize

            416KB

          • memory/1744-69-0x00000000003D0000-0x00000000003DC000-memory.dmp

            Filesize

            48KB

          • memory/1744-67-0x00000000010B0000-0x0000000001154000-memory.dmp

            Filesize

            656KB

          • memory/2004-55-0x0000000071311000-0x0000000071313000-memory.dmp

            Filesize

            8KB

          • memory/2004-58-0x0000000075521000-0x0000000075523000-memory.dmp

            Filesize

            8KB

          • memory/2004-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2004-93-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/2004-94-0x00000000722FD000-0x0000000072308000-memory.dmp

            Filesize

            44KB

          • memory/2004-57-0x00000000722FD000-0x0000000072308000-memory.dmp

            Filesize

            44KB

          • memory/2004-70-0x00000000722FD000-0x0000000072308000-memory.dmp

            Filesize

            44KB

          • memory/2004-54-0x000000002FA01000-0x000000002FA04000-memory.dmp

            Filesize

            12KB