Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2024 02:22

General

  • Target

    548212f42d5dc4965db354d6ce075422dcb3331a213fb0b5b662e08e59234829.doc

  • Size

    191KB

  • MD5

    ec6627e48bb4c56abbb2a4563072e631

  • SHA1

    9e237643473c67940eb359bba09825114c7bc726

  • SHA256

    548212f42d5dc4965db354d6ce075422dcb3331a213fb0b5b662e08e59234829

  • SHA512

    4fb47dcf9e0fe13e038a88cc8c9e06ff1dde996d69281c505a07c3d4cc591e32770c1df8dac3da8d031f4868073ebde8202a7173dfd369b016aa2c69af2385a3

  • SSDEEP

    3072:Q877VGZ5Sd3b4e0wNZtsqXNKd5AvDJW4S+I/tZ6X1bpF6m+3b:9GZYwAZHMCDJ8/u5pAm0b

Malware Config

Extracted

Family

xenorat

C2

dns.stipamana.com

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    12000

  • install_path

    appdata

  • port

    4567

  • startup_name

    mrec

Signatures

  • Detect XenoRat Payload 3 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Downloads MZ/PE file
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 5 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Drops file in Windows directory 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 7 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\548212f42d5dc4965db354d6ce075422dcb3331a213fb0b5b662e08e59234829.doc"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2128
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24FE.tmp" /F
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2916
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1812
        • C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
          "C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2424
          • C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
            5⤵
            • Executes dropped EXE
            PID:2828
          • C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
            5⤵
            • Executes dropped EXE
            PID:2720
          • C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\RUSYZH.exe
            5⤵
            • Executes dropped EXE
            PID:1104
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:808
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:604

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp24FE.tmp

      Filesize

      1KB

      MD5

      9d9df2517964d8e049d41515f0d287c3

      SHA1

      2cf5f49554bbf0b73930d06b07e2bf12638d60b7

      SHA256

      03cddeda34c46e3bc77be33a37ae97dea02f4a2d6a8e4c3d208ca2bfa5bf242f

      SHA512

      807e30b096381211eebc6399bf879ce6f6aca5e0659a458403d4207f845c42f6a5f40eae8d00d94ad99917d94e4384e407428cd2f1c6837f9e8b12918f85c031

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\RUSYZH.exe

      Filesize

      134KB

      MD5

      c5782fb8a119d6092f4816b8b39b5fa0

      SHA1

      68f2f0c4884168f1d775a6fc0f550150176ec402

      SHA256

      963bb7cbfda00f3033cfed5058521b0a4a42f797cc0e7473b0008ac1416e30e8

      SHA512

      d0809b3e54024cf08af7548525732d642a7ca00b0e8d30310377b4c9e74cc302c3ab926688da7776beabc055ed5bd5ef56d25e82e19e2ea3b6be08ffee214fe3

    • memory/816-28-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-96-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-4-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-17-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-20-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-19-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-18-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-15-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-0-0x000000002F701000-0x000000002F702000-memory.dmp

      Filesize

      4KB

    • memory/816-14-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-13-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-12-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-11-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-10-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-9-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-8-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-6-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-5-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-16-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-7-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-22-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-26-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-25-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-24-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-23-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-27-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-21-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-2-0x0000000070FCD000-0x0000000070FD8000-memory.dmp

      Filesize

      44KB

    • memory/816-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/816-29-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-95-0x0000000000450000-0x0000000000550000-memory.dmp

      Filesize

      1024KB

    • memory/816-94-0x0000000070FCD000-0x0000000070FD8000-memory.dmp

      Filesize

      44KB

    • memory/1880-63-0x0000000000610000-0x000000000063A000-memory.dmp

      Filesize

      168KB

    • memory/1880-62-0x0000000000A10000-0x0000000000A36000-memory.dmp

      Filesize

      152KB

    • memory/2128-64-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/2128-66-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/2128-67-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/2424-83-0x0000000000250000-0x0000000000276000-memory.dmp

      Filesize

      152KB