Analysis

  • max time kernel
    185s
  • max time network
    166s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 16:09

General

  • Target

    1fc26771866526cb19293f19ffde11fe9c833b336cc67af89160607e0f5eb5d5.exe

  • Size

    160KB

  • MD5

    0816c0b45add832e917dfe70fbd048af

  • SHA1

    522d686ebff5e9075cbc4e2c6e39869fbc8a7e50

  • SHA256

    1fc26771866526cb19293f19ffde11fe9c833b336cc67af89160607e0f5eb5d5

  • SHA512

    db80cecb7e6ac2348aebf33b33883b39b883768872bf7bdcf72736a4ef8b507b392b20356fab0e835bdbb263eb078f269cdee50c12e122fa786f11337cf933d4

  • SSDEEP

    1536:F+gDbKlmyJKz5jR7766dxocisPfDsCUjhe+SPBp9oEoTTLgY++++1sY+++++ZDdM:FxbkuVbvLn7Uj3

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 9 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fc26771866526cb19293f19ffde11fe9c833b336cc67af89160607e0f5eb5d5.exe
    "C:\Users\Admin\AppData\Local\Temp\1fc26771866526cb19293f19ffde11fe9c833b336cc67af89160607e0f5eb5d5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1432
    • C:\Users\Admin\AppData\Local\Temp\1fc26771866526cb19293f19ffde11fe9c833b336cc67af89160607e0f5eb5d5.exe
      "C:\Users\Admin\AppData\Local\Temp\1fc26771866526cb19293f19ffde11fe9c833b336cc67af89160607e0f5eb5d5.exe"
      2⤵
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\TFDHC.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1992
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "xplorer" /t REG_SZ /d "C:\Windows\xplorer\xplorer.exe" /f
          4⤵
          • Adds Run key to start application
          PID:1448
      • C:\Windows\xplorer\xplorer.exe
        "C:\Windows\xplorer\xplorer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1280
        • C:\Windows\xplorer\xplorer.exe
          "C:\Windows\xplorer\xplorer.exe"
          4⤵
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1208
        • C:\Windows\xplorer\xplorer.exe
          "C:\Windows\xplorer\xplorer.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1456
          • C:\Windows\syswow64\svchost.exe
            C:\Windows\syswow64\svchost.exe
            5⤵
            • Adds policy Run key to start application
            • Drops file in Program Files directory
            • Drops file in Windows directory
            PID:564

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          124B

          MD5

          4e6e99d38b1264af2b53a68c7cd6d648

          SHA1

          55ffe17732d1d9c539d702a1311ef9674fe7b3cf

          SHA256

          168d9cdf4849fde3b4817db207e60934b6c877be439289f3fb3a4eb9e4326ff0

          SHA512

          bde21abed1bfc3dbdd6afc83614aa27c3f33dfbb434e139523ac57ecd84875b0e96a241f5828eda0b055f787ec7f95850b0f4ab0ee752ac36484b2bfd78a859d

        • C:\Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • C:\Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • C:\Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • C:\Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • \Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • \Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • \Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • \Windows\xplorer\xplorer.exe

          Filesize

          160KB

          MD5

          70989791f3617d6f542f5df1426f30aa

          SHA1

          47294c1c60d96056ffaa2d76510c539002aaccea

          SHA256

          d99a3810f4d9ae2e5cab8cecb082b70b27287efcefcb1f08b5858b2d5376fd44

          SHA512

          0ff4cfb63a36fdeb9b3e0de04e5c77f5e3f3291e2f1d65dda12ad01b8905d97b4523b9f1b73539642b818880f6d26c3f42db27587dd5627c15c82577b8b04698

        • memory/564-104-0x0000000000BE0000-0x0000000000BE8000-memory.dmp

          Filesize

          32KB

        • memory/564-109-0x0000000000020000-0x0000000000025000-memory.dmp

          Filesize

          20KB

        • memory/564-106-0x0000000000020000-0x0000000000025000-memory.dmp

          Filesize

          20KB

        • memory/564-105-0x00000000000C0000-0x00000000000C5000-memory.dmp

          Filesize

          20KB

        • memory/948-56-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-65-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-64-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-60-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-68-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-59-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-101-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/948-69-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

          Filesize

          8KB

        • memory/948-57-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1208-110-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1208-107-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1280-100-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/1432-63-0x0000000000400000-0x000000000043B000-memory.dmp

          Filesize

          236KB

        • memory/1456-103-0x0000000000400000-0x0000000000405000-memory.dmp

          Filesize

          20KB

        • memory/1456-95-0x0000000000400000-0x0000000000405000-memory.dmp

          Filesize

          20KB

        • memory/1456-91-0x0000000000400000-0x0000000000405000-memory.dmp

          Filesize

          20KB

        • memory/1456-89-0x0000000000400000-0x0000000000405000-memory.dmp

          Filesize

          20KB