Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 06:35

General

  • Target

    a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe

  • Size

    174KB

  • MD5

    738ce05fd101df895a9f94194c780b9f

  • SHA1

    08515188d79a00dcfe46d2fd3aabe507a5da32c0

  • SHA256

    a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68

  • SHA512

    9d3b15a340445220b994070efae6a9b3b08dfdcbc3926eacacd251c7cefab436ed100853487f8cf8f52a4d1fd382efd73391ca6894d4c0f7b38397c8208202ab

  • SSDEEP

    3072:BUjKL04BXtB57iecsOv7lzIAKddLhVcDjgOzzH9P2kYiy3MeKXRPCc96Rd/:Bcct1czz+rdLh4jRzH9ukY6eKXRPCnd/

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 1 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 4 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • 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.

  • 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: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
    "C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3868
    • C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
      C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3636
      • C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
        "C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
          C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4388
        • C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
          C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
          4⤵
          • Executes dropped EXE
          PID:4460
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4460 -s 80
            5⤵
            • Program crash
            PID:2156
        • C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
          C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1540
    • C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
      C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
      2⤵
        PID:3204
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 80
          3⤵
          • Program crash
          PID:1108
      • C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
        C:\Users\Admin\AppData\Local\Temp\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1624
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA79A.tmp" /F
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1580
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3204 -ip 3204
      1⤵
        PID:3696
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4460 -ip 4460
        1⤵
          PID:1736

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe.log

          Filesize

          706B

          MD5

          d95c58e609838928f0f49837cab7dfd2

          SHA1

          55e7139a1e3899195b92ed8771d1ca2c7d53c916

          SHA256

          0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

          SHA512

          405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

        • C:\Users\Admin\AppData\Local\Temp\tmpA79A.tmp

          Filesize

          1KB

          MD5

          0aa5f09b33684ece58752cba6b0fc0b9

          SHA1

          d666c354b450fb74ef8a2e18de630908739a3bfa

          SHA256

          c26a596b205afc7cbf378a69abe7bf18a22fab2063a06f42099ba4d614925e4b

          SHA512

          425601a1d31411a1a63836922fcbbff2e132d4a8ab627cac529210856cbb0c132b359abd631618ef431d4cc1f846a84dfe8303e7641757e44b9c8f61f667cf33

        • C:\Users\Admin\AppData\Roaming\UpdateManager\a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68.exe

          Filesize

          174KB

          MD5

          738ce05fd101df895a9f94194c780b9f

          SHA1

          08515188d79a00dcfe46d2fd3aabe507a5da32c0

          SHA256

          a4fec84817659fd95a1cfca90d750f64da249942cb660fb735f76e6d66fd7c68

          SHA512

          9d3b15a340445220b994070efae6a9b3b08dfdcbc3926eacacd251c7cefab436ed100853487f8cf8f52a4d1fd382efd73391ca6894d4c0f7b38397c8208202ab

        • memory/1624-41-0x0000000006200000-0x0000000006266000-memory.dmp

          Filesize

          408KB

        • memory/1624-38-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/1624-18-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/1624-16-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/2788-37-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/2788-30-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/3636-12-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/3636-9-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/3636-29-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/3868-0-0x000000007518E000-0x000000007518F000-memory.dmp

          Filesize

          4KB

        • memory/3868-8-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/3868-7-0x0000000004C20000-0x0000000004C26000-memory.dmp

          Filesize

          24KB

        • memory/3868-17-0x0000000075180000-0x0000000075930000-memory.dmp

          Filesize

          7.7MB

        • memory/3868-6-0x000000000DC80000-0x000000000DD12000-memory.dmp

          Filesize

          584KB

        • memory/3868-5-0x000000000E190000-0x000000000E734000-memory.dmp

          Filesize

          5.6MB

        • memory/3868-4-0x000000000DB40000-0x000000000DBDC000-memory.dmp

          Filesize

          624KB

        • memory/3868-3-0x000000000DA70000-0x000000000DAA4000-memory.dmp

          Filesize

          208KB

        • memory/3868-2-0x00000000075D0000-0x00000000075D6000-memory.dmp

          Filesize

          24KB

        • memory/3868-1-0x00000000007E0000-0x0000000000810000-memory.dmp

          Filesize

          192KB