Analysis

  • max time kernel
    150s
  • max time network
    162s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    27-07-2024 06:44

General

  • Target

    a5f629e62e8012c0ead81b462bc05ec9d20395af3121f87961f9d2dfde908895.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#.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Executes dropped EXE 11 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 8 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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 12 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5f629e62e8012c0ead81b462bc05ec9d20395af3121f87961f9d2dfde908895.exe
    "C:\Users\Admin\AppData\Local\Temp\a5f629e62e8012c0ead81b462bc05ec9d20395af3121f87961f9d2dfde908895.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4748
    • 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:2356
      • C:\Users\Admin\AppData\Roaming\efthfxj.sfx.exe
        efthfxj.sfx.exe -pgtrfdewscbsdyethnymkdesppodtyuhngfszafugyRhvqxsdfHbgnmeG -dC:\Users\Admin\AppData\Roaming
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3488
        • 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:3120
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4636
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks.exe" /Create /TN "HDdisplay" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF8D2.tmp" /F
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:3100
          • 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:1504
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            PID:1020
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1020 -s 96
              6⤵
              • Program crash
              PID:2080
          • C:\Users\Admin\AppData\Roaming\efthfxj.exe
            C:\Users\Admin\AppData\Roaming\efthfxj.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2056
            • 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:1548
              • C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                C:\Users\Admin\AppData\Roaming\XenoManager\efthfxj.exe
                7⤵
                • Executes dropped EXE
                PID:1612
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 92
                  8⤵
                  • Program crash
                  PID:4800
              • 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:4344
              • 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:5056
              • 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:852
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1020 -ip 1020
    1⤵
      PID:1464
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1612 -ip 1612
      1⤵
        PID:3404

      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

        522B

        MD5

        6658b021c1f7ac5e44634117ffe5bbeb

        SHA1

        23584308445dcbc6ccc2f8c94ca34018e752f312

        SHA256

        ab332f4f12e0cfa58daf8a27e801fcd5ed7f2781d7149a9be89e6ef40623d793

        SHA512

        ed8ba3c2c86a8a8c016c0f035ef79393c6d96531ff10bde005038897f5af48e4b37908d0c3b7394cf3b60e8c50ccde0f374a3f113493be1b772acc3e6b06311f

      • C:\Users\Admin\AppData\Local\Temp\tmpF8D2.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/3120-22-0x0000000000C30000-0x0000000000C78000-memory.dmp

        Filesize

        288KB

      • memory/3120-23-0x0000000003130000-0x0000000003136000-memory.dmp

        Filesize

        24KB

      • memory/3120-24-0x0000000005670000-0x00000000056B2000-memory.dmp

        Filesize

        264KB

      • memory/3120-25-0x0000000005990000-0x0000000005A2C000-memory.dmp

        Filesize

        624KB

      • memory/3120-26-0x00000000056C0000-0x00000000056C6000-memory.dmp

        Filesize

        24KB

      • memory/4636-27-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/4636-58-0x0000000005D30000-0x0000000005D96000-memory.dmp

        Filesize

        408KB

      • memory/4636-59-0x0000000005FA0000-0x000000000609A000-memory.dmp

        Filesize

        1000KB

      • memory/4636-60-0x0000000006270000-0x0000000006432000-memory.dmp

        Filesize

        1.8MB

      • memory/4636-61-0x0000000006120000-0x0000000006196000-memory.dmp

        Filesize

        472KB

      • memory/4636-62-0x00000000061A0000-0x00000000061F0000-memory.dmp

        Filesize

        320KB

      • memory/4636-63-0x0000000006970000-0x0000000006E9C000-memory.dmp

        Filesize

        5.2MB

      • memory/4636-64-0x0000000006460000-0x000000000647E000-memory.dmp

        Filesize

        120KB