Analysis

  • max time kernel
    126s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    27-07-2024 08:40

General

  • Target

    88696cf17417a2339b63f9452404c839.exe

  • Size

    614KB

  • MD5

    88696cf17417a2339b63f9452404c839

  • SHA1

    2123ca0e3764ba65e421d3b5dd7453da955d36f2

  • SHA256

    a5f629e62e8012c0ead81b462bc05ec9d20395af3121f87961f9d2dfde908895

  • SHA512

    a4236f6d52b985420dc733998842815fd24f12236bdbf3b885ed9a15c0d4815dec439cf919925b4b903ac158aba1ba2a8bf9eff20af7134d2e4edbce226f7931

  • SSDEEP

    12288:WcrNS33L10QdrX2ZVncWqvo2GAhcWMuql8lPtahdkkB183kD:FNA3R5drXwVcWWyLZ8db3kD

Malware Config

Extracted

Family

xenorat

C2

45.66.231.63

Mutex

Holid_rat_nd8859g

Attributes
  • delay

    60400

  • install_path

    appdata

  • port

    1243

  • startup_name

    HDdisplay

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 6 IoCs
  • Suspicious use of SetThreadContext 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 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 WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88696cf17417a2339b63f9452404c839.exe
    "C:\Users\Admin\AppData\Local\Temp\88696cf17417a2339b63f9452404c839.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:264
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\eystsdf.cmd" "
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Users\Admin\AppData\Roaming\efthfxj.sfx.exe
        efthfxj.sfx.exe -pgtrfdewscbsdyethnymkdesppodtyuhngfszafugyRhvqxsdfHbgnmeG -dC:\Users\Admin\AppData\Roaming
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2740
        • C:\Users\Admin\AppData\Roaming\efthfxj.exe
          "C:\Users\Admin\AppData\Roaming\efthfxj.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2680
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1736
            • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
              "C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1624
              • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:1768
              • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                7⤵
                • Executes dropped EXE
                PID:2936
              • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:1976
              • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                7⤵
                • Executes dropped EXE
                PID:2140
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1520
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /Create /TN "HDdisplay" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA209.tmp" /F
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1880
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1396
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            PID:2572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA209.tmp

    Filesize

    1KB

    MD5

    1fdd5f5a596a436ee52a5e78e1b86e00

    SHA1

    48f1f5d65c920f62320965c9c2b1cc41b096b8ae

    SHA256

    a997db9ebe7321980fbd9cff00f63967b921e4b5238280fed5725690ed10897f

    SHA512

    3146d8721f3796399e70933e09c66bf07fbcfed9b2d7e27507514761a5e2ea9e3b95a72c813658799934bec27ddbe5b9c4239a7c3cc861a00776feda9e87a332

  • C:\Users\Admin\AppData\Roaming\efthfxj.sfx.exe

    Filesize

    474KB

    MD5

    642a150be5bbed12c85dff794b955c01

    SHA1

    115de36f192e2bb10ec7c2c8bba9bf3dd639b461

    SHA256

    ded2b1a499ba8ac097361b01b1e56bdaa67769c0b7130489af489bef58cb5dfc

    SHA512

    d4a8249bc53bd070bfb8c0cdd703980ac4b12e0a0354a31333d7bf0af089edc1317c3005e99cdd3247b883ce72d10158e928d54664941010ee884fb4a5b1ce42

  • C:\Users\Admin\AppData\Roaming\eystsdf.cmd

    Filesize

    18KB

    MD5

    fa0fdc18cccb4a2fb162362848d10d73

    SHA1

    9ccab8577c310e19e1299fb7fcad538c72a36420

    SHA256

    c3f004c34695080e75df6dccc39dae9e269eba7164aa0f95b9964078973f3736

    SHA512

    fcce03713d22d8831cb8f792c9e367aeb4d3714ffb89f148f2b64ae32bb066f7ab0b5ea58778309a86584af8169a75bb7325ba6505567881bd330cdead222fd3

  • \Users\Admin\AppData\Roaming\efthfxj.exe

    Filesize

    251KB

    MD5

    dcb591d1fc03274934709e24b502d719

    SHA1

    9d4172d007347a9aa54b48cb5a214a792ad03708

    SHA256

    c7e67928407dc0d2fe2a61e10e2f97104986770b6ba6e59f8faa7b6fcc595028

    SHA512

    1d6748bdd0bbfbe4d1f15dde0af015fb08814ffc3360b215d4f56844b15ae1d4b29ade922678439c3a07f1fa41da287a1054b0eb5853a761ae2fabb4b08b2800

  • memory/1624-63-0x0000000000EF0000-0x0000000000F38000-memory.dmp

    Filesize

    288KB

  • memory/1736-41-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1736-49-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1736-45-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2680-37-0x0000000000D20000-0x0000000000D68000-memory.dmp

    Filesize

    288KB

  • memory/2680-38-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2680-39-0x0000000000A50000-0x0000000000A92000-memory.dmp

    Filesize

    264KB

  • memory/2680-40-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB