Analysis

  • max time kernel
    151s
  • max time network
    164s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16/06/2022, 09:51

General

  • Target

    Ordine nr. D12201437.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 3 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 6 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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 WriteProcessMemory
    PID:1268
    • 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 nr. D12201437.xlsx"
      2⤵
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:624
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Public\vbc.exe"
        3⤵
          PID:952
    • 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:1092
      • C:\Users\Public\vbc.exe
        "C:\Users\Public\vbc.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1520
        • 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:1108

    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/624-60-0x0000000072B0D000-0x0000000072B18000-memory.dmp

            Filesize

            44KB

          • memory/624-72-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/624-58-0x00000000769D1000-0x00000000769D3000-memory.dmp

            Filesize

            8KB

          • memory/624-54-0x000000002FD91000-0x000000002FD94000-memory.dmp

            Filesize

            12KB

          • memory/624-57-0x0000000072B0D000-0x0000000072B18000-memory.dmp

            Filesize

            44KB

          • memory/624-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/624-55-0x0000000071B21000-0x0000000071B23000-memory.dmp

            Filesize

            8KB

          • memory/624-73-0x0000000072B0D000-0x0000000072B18000-memory.dmp

            Filesize

            44KB

          • memory/956-90-0x0000000000860000-0x0000000000B63000-memory.dmp

            Filesize

            3.0MB

          • memory/956-89-0x00000000000C0000-0x00000000000EB000-memory.dmp

            Filesize

            172KB

          • memory/956-88-0x0000000000370000-0x0000000000378000-memory.dmp

            Filesize

            32KB

          • memory/956-91-0x0000000000620000-0x00000000006B0000-memory.dmp

            Filesize

            576KB

          • memory/956-93-0x00000000000C0000-0x00000000000EB000-memory.dmp

            Filesize

            172KB

          • memory/1108-75-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1108-76-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1108-78-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1108-82-0x0000000000400000-0x000000000042B000-memory.dmp

            Filesize

            172KB

          • memory/1108-83-0x0000000000910000-0x0000000000C13000-memory.dmp

            Filesize

            3.0MB

          • memory/1108-84-0x0000000000250000-0x0000000000261000-memory.dmp

            Filesize

            68KB

          • memory/1268-85-0x0000000004130000-0x00000000041F1000-memory.dmp

            Filesize

            772KB

          • memory/1268-92-0x00000000062C0000-0x00000000063AD000-memory.dmp

            Filesize

            948KB

          • memory/1520-74-0x00000000009C0000-0x00000000009F2000-memory.dmp

            Filesize

            200KB

          • memory/1520-71-0x00000000052C0000-0x0000000005328000-memory.dmp

            Filesize

            416KB

          • memory/1520-70-0x00000000002C0000-0x00000000002CC000-memory.dmp

            Filesize

            48KB

          • memory/1520-68-0x0000000000150000-0x00000000001F4000-memory.dmp

            Filesize

            656KB