Analysis

  • max time kernel
    150s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    28-09-2021 11:10

General

  • Target

    REVISED OFFER.exe

  • Size

    1.5MB

  • MD5

    a23d32321c572b877246453f426494d2

  • SHA1

    23f03a3533053b06acc915bcb33e9a8ebfdfa010

  • SHA256

    9748d96e1143a06277d9cc3e9398d366fe3fa21c4316b8134462c42a0020fe87

  • SHA512

    356ddaaf71c6d409450a558a51d8c43a8edcccf283fdf24d1c7d81a10bf21123e1b1abffae63694219bb7b2192704fd885d8a8a7409e481a6629763b7d5e2555

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c2ue

C2

http://www.heidevelop.xyz/c2ue/

Decoy

isportdata.com

stellarex.energy

hsucollections.com

menuhaisan.com

joe-tzu.com

lumichargemktg.com

uae.tires

rapidcae.com

softwaresystemsolutions.com

s-galaxy.website

daewon-talks.net

northgamesnetwork.com

catalogue-bouyguestele.com

criativanet.com

theseasonalshift.com

actionfoto.online

openmaildoe.com

trashpenguin.com

ennopure.net

azurermine.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
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 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:1200
    • C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe
      "C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe
        "{path}"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:976
    • C:\Windows\SysWOW64\wlanext.exe
      "C:\Windows\SysWOW64\wlanext.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\REVISED OFFER.exe"
        3⤵
        • Deletes itself
        PID:524

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/524-66-0x0000000000000000-mapping.dmp
  • memory/976-63-0x0000000000350000-0x0000000000361000-memory.dmp
    Filesize

    68KB

  • memory/976-62-0x0000000000C90000-0x0000000000F93000-memory.dmp
    Filesize

    3.0MB

  • memory/976-60-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/976-61-0x000000000041D3A0-mapping.dmp
  • memory/1200-72-0x0000000004A00000-0x0000000004AD2000-memory.dmp
    Filesize

    840KB

  • memory/1200-64-0x0000000004180000-0x0000000004241000-memory.dmp
    Filesize

    772KB

  • memory/1268-59-0x0000000004150000-0x000000000417B000-memory.dmp
    Filesize

    172KB

  • memory/1268-54-0x0000000000840000-0x0000000000841000-memory.dmp
    Filesize

    4KB

  • memory/1268-58-0x0000000006010000-0x000000000608E000-memory.dmp
    Filesize

    504KB

  • memory/1268-57-0x0000000000580000-0x000000000058E000-memory.dmp
    Filesize

    56KB

  • memory/1268-56-0x0000000004E60000-0x0000000004E61000-memory.dmp
    Filesize

    4KB

  • memory/1612-65-0x0000000000000000-mapping.dmp
  • memory/1612-67-0x0000000000C20000-0x0000000000C36000-memory.dmp
    Filesize

    88KB

  • memory/1612-68-0x0000000000080000-0x00000000000A9000-memory.dmp
    Filesize

    164KB

  • memory/1612-69-0x0000000002040000-0x0000000002343000-memory.dmp
    Filesize

    3.0MB

  • memory/1612-70-0x00000000762D1000-0x00000000762D3000-memory.dmp
    Filesize

    8KB

  • memory/1612-71-0x0000000000810000-0x00000000008A0000-memory.dmp
    Filesize

    576KB