Analysis

  • max time kernel
    142s
  • max time network
    168s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    21-10-2021 13:34

General

  • Target

    Docs No-65224XXX [ORDER-2021].exe

  • Size

    973KB

  • MD5

    994a2d143c5619a11906c87244855858

  • SHA1

    dc6c06fb2c1acf3164db514878209ec6aec95cac

  • SHA256

    19b95be1b0c890804845c8c6e19cef972c89bfc8156201c3490f047ebfc42ed4

  • SHA512

    271531df66b27cdc1e4f53774c820c186218d6c17a19387a47530a7b1910960e0d517150f88082ea3b03c9abb85f2ccfa9c8ca2d5e7864844179145b32e9b607

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epns

C2

http://www.lnvietnam.online/epns/

Decoy

mmfaccao.com

blttsperma.quest

946abe.net

indispensablehands.com

jkformationfrance.com

phonerepaire.com

lienquan-trian.com

youkuti.com

empowermindbodystudios.com

seunicapf.com

fk-link.xyz

kunai.tech

difficultbutdoablebrand.com

ejworkspace.com

teracorp.biz

thekids.today

quintaalentejana.com

annaviruksham.com

jshengrong.com

nsmetalmakina.xyz

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 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1400
      • C:\Users\Admin\AppData\Local\Temp\Docs No-65224XXX [ORDER-2021].exe
        "C:\Users\Admin\AppData\Local\Temp\Docs No-65224XXX [ORDER-2021].exe"
        2⤵
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1112
        • C:\Users\Admin\AppData\Local\Temp\Docs No-65224XXX [ORDER-2021].exe
          "C:\Users\Admin\AppData\Local\Temp\Docs No-65224XXX [ORDER-2021].exe"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:760
          • C:\Windows\SysWOW64\systray.exe
            "C:\Windows\SysWOW64\systray.exe"
            4⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            PID:1288

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/760-64-0x0000000000310000-0x0000000000321000-memory.dmp
      Filesize

      68KB

    • memory/760-56-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/760-57-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/760-58-0x000000000041D410-mapping.dmp
    • memory/760-61-0x00000000002D0000-0x00000000002E1000-memory.dmp
      Filesize

      68KB

    • memory/760-60-0x00000000006E0000-0x00000000009E3000-memory.dmp
      Filesize

      3.0MB

    • memory/760-63-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1112-54-0x0000000000220000-0x0000000000221000-memory.dmp
      Filesize

      4KB

    • memory/1112-55-0x00000000751A1000-0x00000000751A3000-memory.dmp
      Filesize

      8KB

    • memory/1112-53-0x0000000000281000-0x0000000000295000-memory.dmp
      Filesize

      80KB

    • memory/1288-66-0x0000000000000000-mapping.dmp
    • memory/1288-68-0x0000000000080000-0x00000000000A9000-memory.dmp
      Filesize

      164KB

    • memory/1288-67-0x00000000003F0000-0x00000000003F5000-memory.dmp
      Filesize

      20KB

    • memory/1288-69-0x0000000001E90000-0x0000000002193000-memory.dmp
      Filesize

      3.0MB

    • memory/1288-70-0x0000000001D90000-0x0000000001E20000-memory.dmp
      Filesize

      576KB

    • memory/1400-65-0x0000000006AA0000-0x0000000006B88000-memory.dmp
      Filesize

      928KB

    • memory/1400-62-0x0000000004740000-0x00000000047FF000-memory.dmp
      Filesize

      764KB

    • memory/1400-71-0x0000000008B10000-0x0000000008BFB000-memory.dmp
      Filesize

      940KB