Analysis

  • max time kernel
    20s
  • max time network
    22s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 15:38

General

  • Target

    acfgshxdf.exe

  • Size

    174KB

  • MD5

    d0cbf54138d03f82115b5708be94c5c0

  • SHA1

    aeaafe59c0342c0105d764ee69f6292206f661c6

  • SHA256

    c243a7dcd332df7a231b33e346a1db91ad01c7f0a17f10ed8dec3efa34743949

  • SHA512

    fedc40b326466772e5da972798faa3504837ee67cd26f73db2f6a7effae9d1dc511007279ddd3b78b885c8d691c897ffd2a29f82dd37c6a33623eee85ebb1108

  • 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 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 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 AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
    "C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
      C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE8B.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4676
    • C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
      C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
      2⤵
        PID:4272
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4272 -s 12
          3⤵
          • Program crash
          PID:1412
      • C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
        C:\Users\Admin\AppData\Local\Temp\acfgshxdf.exe
        2⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2508
        • C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
          "C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:916
          • C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
            4⤵
            • Executes dropped EXE
            • Suspicious use of UnmapMainImage
            PID:856
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 12
              5⤵
              • Program crash
              PID:232
          • C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
            4⤵
            • Executes dropped EXE
            PID:4640
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 80
              5⤵
              • Program crash
              PID:4308
          • C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\acfgshxdf.exe
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:3320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4272 -ip 4272
      1⤵
        PID:392
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 856 -ip 856
        1⤵
          PID:2404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4640 -ip 4640
          1⤵
            PID:4360

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            706B

            MD5

            d95c58e609838928f0f49837cab7dfd2

            SHA1

            55e7139a1e3899195b92ed8771d1ca2c7d53c916

            SHA256

            0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

            SHA512

            405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

          • C:\Users\Admin\AppData\Local\Temp\tmpCE8B.tmp

            Filesize

            1KB

            MD5

            3c18b4c5bf6f31ee0aceaedc9e5f5adf

            SHA1

            076db77eb3bea68f2051017353e57c288b53fdaa

            SHA256

            689b2dc6a3c7483fc81bda34c404461a6f1f4400876cddb57c066a0c8e27b7c4

            SHA512

            fb6a0a8cb0240e77d7ec10b9d0a0341f5ac10729d91b3280ac253cb48c19d235c9935bd59ac1697a259853589dd28fa4bd7706e51eb620594962681e8e8a2180

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

            Filesize

            174KB

            MD5

            d0cbf54138d03f82115b5708be94c5c0

            SHA1

            aeaafe59c0342c0105d764ee69f6292206f661c6

            SHA256

            c243a7dcd332df7a231b33e346a1db91ad01c7f0a17f10ed8dec3efa34743949

            SHA512

            fedc40b326466772e5da972798faa3504837ee67cd26f73db2f6a7effae9d1dc511007279ddd3b78b885c8d691c897ffd2a29f82dd37c6a33623eee85ebb1108

          • memory/916-35-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/916-28-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/2136-13-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/2136-16-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/2136-36-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/2136-9-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2508-14-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/2508-29-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/4280-8-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/4280-0-0x000000007468E000-0x000000007468F000-memory.dmp

            Filesize

            4KB

          • memory/4280-6-0x0000000007240000-0x00000000072D2000-memory.dmp

            Filesize

            584KB

          • memory/4280-15-0x0000000074680000-0x0000000074E30000-memory.dmp

            Filesize

            7.7MB

          • memory/4280-5-0x00000000077F0000-0x0000000007D94000-memory.dmp

            Filesize

            5.6MB

          • memory/4280-4-0x00000000071A0000-0x000000000723C000-memory.dmp

            Filesize

            624KB

          • memory/4280-3-0x00000000046C0000-0x00000000046F4000-memory.dmp

            Filesize

            208KB

          • memory/4280-2-0x0000000004C00000-0x0000000004C06000-memory.dmp

            Filesize

            24KB

          • memory/4280-7-0x0000000004D30000-0x0000000004D36000-memory.dmp

            Filesize

            24KB

          • memory/4280-1-0x00000000002B0000-0x00000000002E0000-memory.dmp

            Filesize

            192KB