Analysis

  • max time kernel
    54s
  • max time network
    92s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    03-02-2023 19:24

General

  • Target

    62ee5b95c34acf1b01e338ad370c4dda687bdd67.exe

  • Size

    248KB

  • MD5

    4ca04b351bb18652fcda67b45eed03a9

  • SHA1

    62ee5b95c34acf1b01e338ad370c4dda687bdd67

  • SHA256

    420dfb75c981fe4ab474de914e92c8171f52544d1f3a4d66bf9249e8578d729d

  • SHA512

    d462553e89b0adda35854157bdbb668dc6ac7e415f5dcf37cf65aecd19ff1d93f0aa18e8831f59be5982c21d71715dfa227958696b81d71a9cde8ec9bc79c7b6

  • SSDEEP

    6144:m8OyFY+X5tuRG9YodJ8mQccZowlFfo7qa4D64+94QIKgFLKyEs2UfaoksNzB1jpU:TFY+X5tuRG9YodJ8mQccZowlFfo7qa4U

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62ee5b95c34acf1b01e338ad370c4dda687bdd67.exe
    "C:\Users\Admin\AppData\Local\Temp\62ee5b95c34acf1b01e338ad370c4dda687bdd67.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Users\Admin\AppData\Local\Temp\tmpE9F2.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpE9F2.tmp.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup ashfdjkhgwiueghfruihwjkefwe
        3⤵
          PID:1328
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c cmd < 2
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1164
          • C:\Windows\SysWOW64\cmd.exe
            cmd
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:788
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              powershell get-process avastui
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1456

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2

      Filesize

      11KB

      MD5

      cf13b620804b451200c2fc35d0955c1e

      SHA1

      0b9034ce408d6bdfc2d12a5f957361df1494b564

      SHA256

      968a4e2af5aa8c0ab95e65c08eb5a5ea03d921c9220def24675a676ff3f9fe76

      SHA512

      a4c73efd6ff723b9067c95258f02ee0570cf076a1d992456bfdccdd064e1771dde530d0dd046d2dad6185cb08eb4d641484f75b94b04f0dfd384bdd60fd22f26

    • C:\Users\Admin\AppData\Local\Temp\tmpE9F2.tmp.exe

      Filesize

      1.3MB

      MD5

      2d48214132e5c4d808740e71ec5f6a7f

      SHA1

      f3c7534d9f139782006b5656ec0d229d8d9d356e

      SHA256

      c1fadb8e09ba1257f7656be5a1c8d44e2a0da8697e8e0a32485714949a6c29ca

      SHA512

      71b38bc31ecd199d3408e831c0cda0b0fbce6b363d5da3500767ff2a9a02fc0b3990512085d8d44e25b50e87eceaf4527e58d9c3e0a0802efbc3164af94a77a2

    • \Users\Admin\AppData\Local\Temp\tmpE9F2.tmp.exe

      Filesize

      1.3MB

      MD5

      2d48214132e5c4d808740e71ec5f6a7f

      SHA1

      f3c7534d9f139782006b5656ec0d229d8d9d356e

      SHA256

      c1fadb8e09ba1257f7656be5a1c8d44e2a0da8697e8e0a32485714949a6c29ca

      SHA512

      71b38bc31ecd199d3408e831c0cda0b0fbce6b363d5da3500767ff2a9a02fc0b3990512085d8d44e25b50e87eceaf4527e58d9c3e0a0802efbc3164af94a77a2

    • memory/788-63-0x0000000000000000-mapping.dmp

    • memory/1164-61-0x0000000000000000-mapping.dmp

    • memory/1188-56-0x00000000002D5000-0x00000000002E6000-memory.dmp

      Filesize

      68KB

    • memory/1188-55-0x0000000075BE1000-0x0000000075BE3000-memory.dmp

      Filesize

      8KB

    • memory/1188-54-0x0000000000280000-0x00000000002BE000-memory.dmp

      Filesize

      248KB

    • memory/1188-67-0x00000000002D5000-0x00000000002E6000-memory.dmp

      Filesize

      68KB

    • memory/1328-60-0x0000000000000000-mapping.dmp

    • memory/1456-64-0x0000000000000000-mapping.dmp

    • memory/1456-66-0x000000006F0B0000-0x000000006F65B000-memory.dmp

      Filesize

      5.7MB

    • memory/1456-68-0x000000006F0B0000-0x000000006F65B000-memory.dmp

      Filesize

      5.7MB

    • memory/1964-58-0x0000000000000000-mapping.dmp