Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-07-2024 08:21

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#.

  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 13 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\eystsdf.cmd" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Users\Admin\AppData\Roaming\efthfxj.sfx.exe
        efthfxj.sfx.exe -pgtrfdewscbsdyethnymkdesppodtyuhngfszafugyRhvqxsdfHbgnmeG -dC:\Users\Admin\AppData\Roaming
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:780
        • 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:4020
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:5004
            • 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:3884
              • 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:2088
              • 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:4340
              • 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:2104
              • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                7⤵
                • Executes dropped EXE
                PID:3828
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 84
                  8⤵
                  • Program crash
                  PID:1236
          • 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:4928
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /Create /TN "HDdisplay" /XML "C:\Users\Admin\AppData\Local\Temp\tmp726C.tmp" /F
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2120
          • 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:1584
          • 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:1912
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3828 -ip 3828
    1⤵
      PID:4368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      226B

      MD5

      916851e072fbabc4796d8916c5131092

      SHA1

      d48a602229a690c512d5fdaf4c8d77547a88e7a2

      SHA256

      7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

      SHA512

      07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

    • C:\Users\Admin\AppData\Local\Temp\tmp726C.tmp

      Filesize

      1KB

      MD5

      1fdd5f5a596a436ee52a5e78e1b86e00

      SHA1

      48f1f5d65c920f62320965c9c2b1cc41b096b8ae

      SHA256

      a997db9ebe7321980fbd9cff00f63967b921e4b5238280fed5725690ed10897f

      SHA512

      3146d8721f3796399e70933e09c66bf07fbcfed9b2d7e27507514761a5e2ea9e3b95a72c813658799934bec27ddbe5b9c4239a7c3cc861a00776feda9e87a332

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

      Filesize

      251KB

      MD5

      dcb591d1fc03274934709e24b502d719

      SHA1

      9d4172d007347a9aa54b48cb5a214a792ad03708

      SHA256

      c7e67928407dc0d2fe2a61e10e2f97104986770b6ba6e59f8faa7b6fcc595028

      SHA512

      1d6748bdd0bbfbe4d1f15dde0af015fb08814ffc3360b215d4f56844b15ae1d4b29ade922678439c3a07f1fa41da287a1054b0eb5853a761ae2fabb4b08b2800

    • 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

    • memory/3884-48-0x0000000004960000-0x00000000049A2000-memory.dmp

      Filesize

      264KB

    • memory/4020-22-0x0000000000A50000-0x0000000000A98000-memory.dmp

      Filesize

      288KB

    • memory/4020-23-0x00000000014D0000-0x00000000014D6000-memory.dmp

      Filesize

      24KB

    • memory/4020-25-0x0000000006860000-0x00000000068FC000-memory.dmp

      Filesize

      624KB

    • memory/4020-24-0x0000000003080000-0x00000000030C2000-memory.dmp

      Filesize

      264KB

    • memory/4020-26-0x0000000005520000-0x0000000005526000-memory.dmp

      Filesize

      24KB

    • memory/5004-27-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB