Analysis

  • max time kernel
    152s
  • max time network
    172s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    22-05-2022 05:20

General

  • Target

    catzx.exe

  • Size

    851KB

  • MD5

    e1731c2db19a1b2264946e001c26aad5

  • SHA1

    7044f00a4512c634b2aee0efa360f03e1f8a66e3

  • SHA256

    0fb2dc0a2ad27a832050c14675e3d816920c0a290bffece8ba6a0245b3eaecc6

  • SHA512

    556a962b93b34dcb52f69ab9e48412b1643124e1ef3e8ec982ff66ed77f40253f3eb902d4293261301ff10c7761a5f044e0c7ae935a4d423b7252c530004a2d4

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

r007

Decoy

trashpandaservice.com

mobileads.network

ascolstore.com

gelsinextra.com

bonestell.net

heitoll.xyz

ceapgis.com

mon-lapin.biz

miq-eva.com

rematedesillas.com

playingonline.xyz

hausense.quest

tnyzw.com

appsdial.com

addcolor.city

hagenoblog.com

michaelwesleyj.com

she-zain.com

lorhsems.com

karmaserena.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 4 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 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 use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Local\Temp\catzx.exe
      "C:\Users\Admin\AppData\Local\Temp\catzx.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Users\Admin\AppData\Local\Temp\catzx.exe
        "C:\Users\Admin\AppData\Local\Temp\catzx.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:956
    • C:\Windows\SysWOW64\colorcpl.exe
      "C:\Windows\SysWOW64\colorcpl.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\catzx.exe"
        3⤵
        • Deletes itself
        PID:892

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/892-71-0x0000000000000000-mapping.dmp
  • memory/956-66-0x0000000000880000-0x0000000000B83000-memory.dmp
    Filesize

    3.0MB

  • memory/956-62-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/956-65-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/956-67-0x0000000000210000-0x0000000000221000-memory.dmp
    Filesize

    68KB

  • memory/956-59-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/956-60-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/956-63-0x000000000041D9B0-mapping.dmp
  • memory/1272-76-0x0000000007250000-0x00000000073B1000-memory.dmp
    Filesize

    1.4MB

  • memory/1272-68-0x00000000070B0000-0x0000000007243000-memory.dmp
    Filesize

    1.6MB

  • memory/1944-57-0x00000000054C0000-0x0000000005552000-memory.dmp
    Filesize

    584KB

  • memory/1944-56-0x00000000003F0000-0x00000000003FA000-memory.dmp
    Filesize

    40KB

  • memory/1944-58-0x0000000000B40000-0x0000000000B76000-memory.dmp
    Filesize

    216KB

  • memory/1944-55-0x00000000765C1000-0x00000000765C3000-memory.dmp
    Filesize

    8KB

  • memory/1944-54-0x0000000001260000-0x000000000133C000-memory.dmp
    Filesize

    880KB

  • memory/2004-69-0x0000000000000000-mapping.dmp
  • memory/2004-72-0x0000000000D30000-0x0000000000D48000-memory.dmp
    Filesize

    96KB

  • memory/2004-73-0x00000000000C0000-0x00000000000EA000-memory.dmp
    Filesize

    168KB

  • memory/2004-74-0x0000000002150000-0x0000000002453000-memory.dmp
    Filesize

    3.0MB

  • memory/2004-75-0x00000000009A0000-0x0000000000A30000-memory.dmp
    Filesize

    576KB