Analysis

  • max time kernel
    148s
  • max time network
    197s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    10-09-2021 08:21

General

  • Target

    4444.exe

  • Size

    459KB

  • MD5

    a3e29a08e40f22092782a69ada250f36

  • SHA1

    5597636fe0d024ad1831b30cc5b16764847a2085

  • SHA256

    4a91d8f52d07bcd7fde157c6b56e2881c4abba94a0f7921633da4ae2bba53074

  • SHA512

    b8060bf8147e9659790957f42c6ce5b8906f862e57f20c810d4bf12e48174e8a9fccb6f9842713f4079e3ec95bef3a4489873faaf970e3db388b1923b35dd8f7

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

t75f

C2

http://www.vertexnailsblaine.com/t75f/

Decoy

onegolfsydney.com

kaizensportscoaching.com

mliacbjv.icu

rinstech.net

midas-parts.com

istmenian.com

ibrahimpike.com

herbspaces.com

gentleman4higher.com

workabusiness.com

isabusive.website

222555dy.com

lwhyzhzb.xyz

gabrielabravoillanes.com

hearthomelife.com

buildswealth.com

printitaz.com

l-mventures.com

baincot3.com

nstaq-labs.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
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\4444.exe
      "C:\Users\Admin\AppData\Local\Temp\4444.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:564
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1696
    • C:\Windows\SysWOW64\wininit.exe
      "C:\Windows\SysWOW64\wininit.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:1928

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/564-59-0x0000000000DA0000-0x0000000000DA1000-memory.dmp
      Filesize

      4KB

    • memory/564-61-0x0000000000650000-0x0000000000651000-memory.dmp
      Filesize

      4KB

    • memory/564-62-0x00000000004F0000-0x00000000004F7000-memory.dmp
      Filesize

      28KB

    • memory/564-63-0x0000000004E10000-0x0000000004E70000-memory.dmp
      Filesize

      384KB

    • memory/564-64-0x0000000004740000-0x000000000476A000-memory.dmp
      Filesize

      168KB

    • memory/1200-76-0x0000000004AE0000-0x0000000004BC5000-memory.dmp
      Filesize

      916KB

    • memory/1200-69-0x0000000006130000-0x0000000006272000-memory.dmp
      Filesize

      1.3MB

    • memory/1696-68-0x0000000000180000-0x0000000000190000-memory.dmp
      Filesize

      64KB

    • memory/1696-67-0x0000000000840000-0x0000000000B43000-memory.dmp
      Filesize

      3.0MB

    • memory/1696-66-0x000000000041D110-mapping.dmp
    • memory/1696-65-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1840-70-0x0000000000000000-mapping.dmp
    • memory/1840-72-0x0000000000F00000-0x0000000000F1A000-memory.dmp
      Filesize

      104KB

    • memory/1840-73-0x00000000000C0000-0x00000000000E9000-memory.dmp
      Filesize

      164KB

    • memory/1840-74-0x0000000000B90000-0x0000000000E93000-memory.dmp
      Filesize

      3.0MB

    • memory/1840-75-0x0000000000340000-0x00000000003CF000-memory.dmp
      Filesize

      572KB

    • memory/1928-71-0x0000000000000000-mapping.dmp