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Analysis

  • max time kernel
    93s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 21:56

General

  • Target

    adsav.exe

  • Size

    55KB

  • MD5

    80c7ba2da4987600d1e9008265aafb0d

  • SHA1

    4712783a6004912fd4cedd71e9f60a0ddd03b6d0

  • SHA256

    47d0ceb844938cc8c28168f069f45461e5f0d670205fef7d092a41704ae416f0

  • SHA512

    fbefdc6b3f2d6669c1382ebad364d96e9561c40d561e6d9d9a1d50e331d54c72d7fd3602f8f9e2824a43ee11e20bd0d15f2dc80fef27fe840618c0b2c6c31317

  • SSDEEP

    768:h2GgkY5J4Z3LSPQVrHO46v/qNo/ORG7CAXORF72pC+beeM2cSj428lDADOcLeh+E:hLEv/6om47OR92k+bVRcSESO7gJXG

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:58981

147.185.221.24:58981

Attributes
  • Install_directory

    %AppData%

  • install_file

    Update.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adsav.exe
    "C:\Users\Admin\AppData\Local\Temp\adsav.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2132
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk

    Filesize

    766B

    MD5

    3cc90689c22580094ea3e427fa8c91f3

    SHA1

    f3146d5faa3da58eaf223a48b3303653327b17d6

    SHA256

    9dc6e77c03c353b0b5ea375d6396fb718101988d75cde34ca0e5cf43667e7bdd

    SHA512

    c6ae11f77b112eb9839d682e726f230161a4b2f92d68661e2e2586fd114d77cf93c75600385c1a070b5f594e9d0ec1bf55360be96f0b22d9e1f42dea68e7a451

  • C:\Users\Admin\AppData\Roaming\Update.exe

    Filesize

    55KB

    MD5

    80c7ba2da4987600d1e9008265aafb0d

    SHA1

    4712783a6004912fd4cedd71e9f60a0ddd03b6d0

    SHA256

    47d0ceb844938cc8c28168f069f45461e5f0d670205fef7d092a41704ae416f0

    SHA512

    fbefdc6b3f2d6669c1382ebad364d96e9561c40d561e6d9d9a1d50e331d54c72d7fd3602f8f9e2824a43ee11e20bd0d15f2dc80fef27fe840618c0b2c6c31317

  • memory/2132-0-0x00007FF976223000-0x00007FF976225000-memory.dmp

    Filesize

    8KB

  • memory/2132-1-0x00000000005E0000-0x00000000005F4000-memory.dmp

    Filesize

    80KB

  • memory/2132-6-0x00007FF976220000-0x00007FF976CE1000-memory.dmp

    Filesize

    10.8MB

  • memory/2132-11-0x00007FF976223000-0x00007FF976225000-memory.dmp

    Filesize

    8KB

  • memory/2132-27-0x00007FF976220000-0x00007FF976CE1000-memory.dmp

    Filesize

    10.8MB

  • memory/4840-23-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-24-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-22-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-21-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-20-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-19-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-18-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-14-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-13-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB

  • memory/4840-12-0x00000287F0A80000-0x00000287F0A81000-memory.dmp

    Filesize

    4KB