Analysis

  • max time kernel
    148s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    19/05/2024, 19:02

General

  • Target

    16bf317221c0cd935d04cae4f14f9bd19f0f71bfc07c5abb608d6f53d93dbe19.exe

  • Size

    84KB

  • MD5

    10cd2c32f1e7594d4aaef85def849bcb

  • SHA1

    7639bf41c80157b880e2af66aed24f10096cb14b

  • SHA256

    16bf317221c0cd935d04cae4f14f9bd19f0f71bfc07c5abb608d6f53d93dbe19

  • SHA512

    e5cb707c067251aa8eb6c781ab7ad240aa3ad50f3192b17ce83c6beef821ed96b8b3feca6098a5a1b4c361deffaec8e5a6b8535de1b2472c8d7d9a55000e8dde

  • SSDEEP

    1536:1clIGFNMi+hJUneHoGTvvv4V9hqdhbtgS:+RMi+fUnCTvvv4V9hEhbCS

Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 61 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\16bf317221c0cd935d04cae4f14f9bd19f0f71bfc07c5abb608d6f53d93dbe19.exe
    "C:\Users\Admin\AppData\Local\Temp\16bf317221c0cd935d04cae4f14f9bd19f0f71bfc07c5abb608d6f53d93dbe19.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Local\Temp\16bf317221c0cd935d04cae4f14f9bd19f0f71bfc07c5abb608d6f53d93dbe19.exe
      "C:\Users\Admin\AppData\Local\Temp\16bf317221c0cd935d04cae4f14f9bd19f0f71bfc07c5abb608d6f53d93dbe19.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\LULAV.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2484
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Audio Driver" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\system\lsass.exe" /f
          4⤵
          • Adds Run key to start application
          PID:880
      • C:\Users\Admin\AppData\Roaming\system\lsass.exe
        "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:600
        • C:\Users\Admin\AppData\Roaming\system\lsass.exe
          "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2596
        • C:\Users\Admin\AppData\Roaming\system\lsass.exe
          "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2428
          • C:\Users\Admin\AppData\Roaming\system\lsass.exe
            "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
            5⤵
            • Executes dropped EXE
            • Modifies system certificate store
            PID:2220

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          68KB

          MD5

          29f65ba8e88c063813cc50a4ea544e93

          SHA1

          05a7040d5c127e68c25d81cc51271ffb8bef3568

          SHA256

          1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

          SHA512

          e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          344B

          MD5

          91a03a5a5a935d93733842854b074598

          SHA1

          980e2d3576e4eb5176448181b93f8df74004fa2b

          SHA256

          b793a25ef3e18601d78cb437c9c5bb8349bfa7b9386600663aacbe7794cd9b92

          SHA512

          595f39201e5af1def3d4a26895193d76516953a49072853c4bb099e230f7e481b63f693fd2a2e60639e3ce26380893e313aee450c4171881101c6fa15078d49f

        • C:\Users\Admin\AppData\Local\Temp\LULAV.bat

          Filesize

          146B

          MD5

          c8cba0a9d4d5600b5f53c4c0681d1115

          SHA1

          0e5348e210ca70b2b0ffdc3ff7e6f611716df80c

          SHA256

          ca2b63f6d7bf17480415ae93e115bf9f9699335e84e62719eefdbcc5a78bd2e1

          SHA512

          a2ad6eb5ae2f6d57ca15363ac2f0c57ca3580474e94b9c010750948814cf4d5ffa0c3e7ef44634a3593da23f56011703ff220a3d7780f6f01785bf3b6676ced0

        • C:\Users\Admin\AppData\Local\Temp\Tar23EC.tmp

          Filesize

          177KB

          MD5

          435a9ac180383f9fa094131b173a2f7b

          SHA1

          76944ea657a9db94f9a4bef38f88c46ed4166983

          SHA256

          67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

          SHA512

          1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

        • \Users\Admin\AppData\Roaming\system\lsass.exe

          Filesize

          84KB

          MD5

          01f9b3b004dd50d91ea5895ba80a1de5

          SHA1

          344612463c19a07e6a652a7fcdcdeacc9380b3b3

          SHA256

          a290617971f887dfffead1c55a2e2ca10c6e222ec706a6be71112aa9f800054d

          SHA512

          443e77b97525ca5dff6c374aa3570937b5d67ba87b48dabea369deb52931df0d30f24823283cae0ba267ffb3fd67f5d127c9f52d0781eb49a5edcfb38a01f6e9

        • memory/2020-179-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2020-394-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2020-281-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2020-175-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2020-177-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2020-186-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2196-153-0x00000000004C0000-0x00000000004C1000-memory.dmp

          Filesize

          4KB

        • memory/2196-58-0x0000000000450000-0x0000000000451000-memory.dmp

          Filesize

          4KB

        • memory/2196-152-0x00000000004B0000-0x00000000004B1000-memory.dmp

          Filesize

          4KB

        • memory/2196-155-0x00000000004D0000-0x00000000004D1000-memory.dmp

          Filesize

          4KB

        • memory/2196-185-0x00000000007B0000-0x00000000007B1000-memory.dmp

          Filesize

          4KB

        • memory/2196-156-0x00000000004F0000-0x00000000004F1000-memory.dmp

          Filesize

          4KB

        • memory/2196-157-0x00000000007A0000-0x00000000007A1000-memory.dmp

          Filesize

          4KB

        • memory/2196-2-0x0000000000270000-0x0000000000271000-memory.dmp

          Filesize

          4KB

        • memory/2196-68-0x0000000000460000-0x0000000000461000-memory.dmp

          Filesize

          4KB

        • memory/2196-150-0x00000000004A0000-0x00000000004A1000-memory.dmp

          Filesize

          4KB

        • memory/2196-4-0x0000000000270000-0x0000000000271000-memory.dmp

          Filesize

          4KB

        • memory/2196-38-0x0000000000430000-0x0000000000431000-memory.dmp

          Filesize

          4KB

        • memory/2196-14-0x00000000003F0000-0x00000000003F1000-memory.dmp

          Filesize

          4KB

        • memory/2196-26-0x0000000000420000-0x0000000000421000-memory.dmp

          Filesize

          4KB

        • memory/2428-406-0x0000000000400000-0x0000000000403000-memory.dmp

          Filesize

          12KB

        • memory/2428-391-0x0000000000400000-0x0000000000403000-memory.dmp

          Filesize

          12KB

        • memory/2596-390-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/2596-561-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB