Analysis

  • max time kernel
    78s
  • max time network
    68s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-08-2023 01:53

General

  • Target

    bdd1438c98225e3ea172ec284a6708f9.exe

  • Size

    1.5MB

  • MD5

    bdd1438c98225e3ea172ec284a6708f9

  • SHA1

    0d1e23278ef4346d2a051f35d4cecf30199e6eae

  • SHA256

    6920c222d9646d2f191e93a2a0f5ea080615ddc88f0b65d18342eb335dfa480c

  • SHA512

    7847f435bf73205fc0f2354c4d80c16d414f2f9076a5a725cbac2bd53d72b7b0f52c5e321d03915a1e9209e99006398d6208ef66c5e77190a256b9067ad2f3a4

  • SSDEEP

    49152:VU7EGUTipLZ+DYQ1dKrHIdbbwPk+1ddjjt2:C7EZG/+DYwdKrap+1d

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bdd1438c98225e3ea172ec284a6708f9.exe
    "C:\Users\Admin\AppData\Local\Temp\bdd1438c98225e3ea172ec284a6708f9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:4120
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 188
          3⤵
          • Program crash
          PID:1876
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Local\Temp\rttre"
        2⤵
          PID:3148
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe'" /f
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4208
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe'" /f
            3⤵
            • Creates scheduled task(s)
            PID:2636
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\bdd1438c98225e3ea172ec284a6708f9.exe" "C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe"
          2⤵
            PID:3488
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4120 -ip 4120
          1⤵
            PID:3432
          • C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe
            C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe
            1⤵
            • Executes dropped EXE
            PID:1188

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe

            Filesize

            1.5MB

            MD5

            bdd1438c98225e3ea172ec284a6708f9

            SHA1

            0d1e23278ef4346d2a051f35d4cecf30199e6eae

            SHA256

            6920c222d9646d2f191e93a2a0f5ea080615ddc88f0b65d18342eb335dfa480c

            SHA512

            7847f435bf73205fc0f2354c4d80c16d414f2f9076a5a725cbac2bd53d72b7b0f52c5e321d03915a1e9209e99006398d6208ef66c5e77190a256b9067ad2f3a4

          • C:\Users\Admin\AppData\Local\Temp\rttre\rttre.exe

            Filesize

            1.5MB

            MD5

            bdd1438c98225e3ea172ec284a6708f9

            SHA1

            0d1e23278ef4346d2a051f35d4cecf30199e6eae

            SHA256

            6920c222d9646d2f191e93a2a0f5ea080615ddc88f0b65d18342eb335dfa480c

            SHA512

            7847f435bf73205fc0f2354c4d80c16d414f2f9076a5a725cbac2bd53d72b7b0f52c5e321d03915a1e9209e99006398d6208ef66c5e77190a256b9067ad2f3a4

          • memory/1188-148-0x0000000074890000-0x0000000075040000-memory.dmp

            Filesize

            7.7MB

          • memory/2388-145-0x0000000074890000-0x0000000075040000-memory.dmp

            Filesize

            7.7MB

          • memory/2388-137-0x00000000052E0000-0x00000000052F0000-memory.dmp

            Filesize

            64KB

          • memory/2388-133-0x0000000074890000-0x0000000075040000-memory.dmp

            Filesize

            7.7MB

          • memory/2388-136-0x0000000074890000-0x0000000075040000-memory.dmp

            Filesize

            7.7MB

          • memory/2388-135-0x00000000052E0000-0x00000000052F0000-memory.dmp

            Filesize

            64KB

          • memory/2388-134-0x00000000007F0000-0x000000000097A000-memory.dmp

            Filesize

            1.5MB

          • memory/4120-138-0x0000000000500000-0x00000000008E4000-memory.dmp

            Filesize

            3.9MB

          • memory/4120-139-0x0000000000500000-0x00000000008E4000-memory.dmp

            Filesize

            3.9MB

          • memory/4120-140-0x0000000000500000-0x00000000008E4000-memory.dmp

            Filesize

            3.9MB

          • memory/4120-141-0x0000000000500000-0x00000000008E4000-memory.dmp

            Filesize

            3.9MB