Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2024 19:31

General

  • Target

    System32.exe

  • Size

    45KB

  • MD5

    896081ff179580794b2e56d763e60e5a

  • SHA1

    97dca39b6a660e9e1285b401456576fdd0998710

  • SHA256

    acf6b4e5100ebd3921ea434dfb8e6fe93c3933390ec960a18670120d6732125b

  • SHA512

    48809ea72174b61a8b6ee24c61a42257e60ac10980098c3fbad45cab00eb96065662bd57425f6dbd2f561f30ab88395f4cb568a7fdc62645824ed1de403a145e

  • SSDEEP

    768:MdhO/poiiUcjlJIndfH9Xqk5nWEZ5SbTDatuI7CPW5S:Gw+jjgnVH9XqcnW85SbTwuIK

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

System32

Attributes
  • delay

    5000

  • install_path

    temp

  • port

    4444

  • startup_name

    System32

Signatures

  • Detect XenoRat Payload 2 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\System32.exe
    "C:\Users\Admin\AppData\Local\Temp\System32.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:436
    • C:\Users\Admin\AppData\Local\Temp\XenoManager\System32.exe
      "C:\Users\Admin\AppData\Local\Temp\XenoManager\System32.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4968
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "System32" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7474.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\System32.exe.log

    Filesize

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • C:\Users\Admin\AppData\Local\Temp\XenoManager\System32.exe

    Filesize

    45KB

    MD5

    896081ff179580794b2e56d763e60e5a

    SHA1

    97dca39b6a660e9e1285b401456576fdd0998710

    SHA256

    acf6b4e5100ebd3921ea434dfb8e6fe93c3933390ec960a18670120d6732125b

    SHA512

    48809ea72174b61a8b6ee24c61a42257e60ac10980098c3fbad45cab00eb96065662bd57425f6dbd2f561f30ab88395f4cb568a7fdc62645824ed1de403a145e

  • C:\Users\Admin\AppData\Local\Temp\tmp7474.tmp

    Filesize

    1KB

    MD5

    b34fc460ef3471937aafe3b06e4f954c

    SHA1

    ed9abcc6b0430edbbdf4cf2c43243ba1a17e7aa2

    SHA256

    edacee32c3c4ba1c86b77b520a8f6d52e7aa004ff714c70bc2437877cde68c2b

    SHA512

    e3a1d215fb9808e69d10eb7852bedbbf1390bc2b0296a8187ea5d8cb6d393321f8bfae86e0407849b728ca2626b44314ad9c6c62cbcb58b63e33a57372018afd

  • memory/436-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/436-1-0x0000000000A50000-0x0000000000A62000-memory.dmp

    Filesize

    72KB

  • memory/4968-15-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-16-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-19-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/4968-20-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB