Analysis

  • max time kernel
    137s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    16-04-2021 12:01

General

  • Target

    ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97.exe

  • Size

    283KB

  • MD5

    1f130569a8373dfae4f387d4757769cf

  • SHA1

    038f27c37ade7fcb97745e149b65258a7a1ea295

  • SHA256

    ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97

  • SHA512

    7401da486a4141efe362f3ba80299f3305e05866e7a04cad8a40107fe6a83765e4616af4ef6f6f40b605135cd34a3c48dedc6023ee32facfb8b4984f29cfa7b3

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • DiamondFox

    DiamondFox is a multipurpose botnet with many capabilities.

  • DiamondFox payload 3 IoCs

    Detects DiamondFox payload in file/memory.

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 3 IoCs
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97.exe
    "C:\Users\Admin\AppData\Local\Temp\ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Users\Admin\AppData\Local\Temp\ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97.exe
      "C:\Users\Admin\AppData\Local\Temp\ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic" /Node:localhost /Namespace:\\root\SecurityCenter2 path AntiVirusProduct get DisplayName /FORMAT:List
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1820
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic" os get caption /FORMAT:List
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:548
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic" path win32_VideoController get caption /FORMAT:List
        3⤵
          PID:592
        • C:\Windows\SysWOW64\Wbem\wmic.exe
          "wmic" path win32_NetworkAdapterConfiguration where IPEnabled=1 get IPAddress /FORMAT:List
          3⤵
            PID:1972
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            "wmic" LogicalDisk Where DriveType=4 get VolumeName /FORMAT:List
            3⤵
              PID:2008
            • C:\Windows\SysWOW64\Wbem\wmic.exe
              "wmic" path win32_PingStatus where address='vladisfoxlink.ru' get StatusCode /FORMAT:List
              3⤵
                PID:1724
              • C:\Windows\SysWOW64\Wbem\wmic.exe
                "wmic" path win32_PingStatus where address='vladisfoxlink.ru' get ResponseTime /FORMAT:List
                3⤵
                  PID:1072
                • C:\Users\Admin\AppData\Local\Temp\ed5872028e073a00549aa0ffe151dc4d641eae83694c1fcc3dc545183c091d97.exe
                  /scomma "C:\Users\Admin\AppData\Local\Temp\1.log"
                  3⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1592

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Credential Access

            Credentials in Files

            1
            T1081

            Discovery

            Query Registry

            1
            T1012

            Collection

            Data from Local System

            1
            T1005

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\1.log
              MD5

              4f7d90f045ae07792fb8d76bce925854

              SHA1

              c39b2866368f2c88c1865aa5577792bd2fb8bfe5

              SHA256

              df74b997137fec63589828cafa9df9bfe272b330ffb8743fa4db79096a0fdc34

              SHA512

              4ce48987acf465b7064d0162449eaf929b1e80dc760fe2da72e2841754a34536be5b2c17ade17d58e76c31bc9fdd6540820191395b9399287aabf4007274ae71

            • memory/548-70-0x0000000000000000-mapping.dmp
            • memory/592-71-0x0000000000000000-mapping.dmp
            • memory/788-76-0x0000000004975000-0x0000000004986000-memory.dmp
              Filesize

              68KB

            • memory/788-60-0x0000000000D10000-0x0000000000D11000-memory.dmp
              Filesize

              4KB

            • memory/788-64-0x00000000004C0000-0x00000000004C1000-memory.dmp
              Filesize

              4KB

            • memory/788-63-0x0000000004970000-0x0000000004971000-memory.dmp
              Filesize

              4KB

            • memory/788-62-0x0000000000440000-0x000000000047F000-memory.dmp
              Filesize

              252KB

            • memory/1072-75-0x0000000000000000-mapping.dmp
            • memory/1592-80-0x0000000000400000-0x000000000047C000-memory.dmp
              Filesize

              496KB

            • memory/1592-77-0x0000000000400000-0x000000000047C000-memory.dmp
              Filesize

              496KB

            • memory/1592-78-0x00000000004466F4-mapping.dmp
            • memory/1696-68-0x0000000000400000-0x0000000000435000-memory.dmp
              Filesize

              212KB

            • memory/1696-66-0x0000000000401000-mapping.dmp
            • memory/1696-67-0x0000000075551000-0x0000000075553000-memory.dmp
              Filesize

              8KB

            • memory/1696-65-0x0000000000400000-0x0000000000435000-memory.dmp
              Filesize

              212KB

            • memory/1724-74-0x0000000000000000-mapping.dmp
            • memory/1820-69-0x0000000000000000-mapping.dmp
            • memory/1972-72-0x0000000000000000-mapping.dmp
            • memory/2008-73-0x0000000000000000-mapping.dmp