Analysis

  • max time kernel
    168s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 11:36

General

  • Target

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261.exe

  • Size

    80KB

  • MD5

    2fa8094540f180188743c4efd7629b18

  • SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

  • SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

  • SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • SSDEEP

    1536:VLFtyml6bLTFX+a/TBYOwWm3L6MvgR0VNdBqBfIBiuNptT:8m0/TcuBhmblLrqBfIBDl

Malware Config

Signatures

  • UAC bypass 3 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Drops startup file 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 61 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261.exe
    "C:\Users\Admin\AppData\Local\Temp\ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261.exe"
    1⤵
    • UAC bypass
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1780
    • C:\Users\Admin\AppData\Local\Temp\WINRAR.exe
      "C:\Users\Admin\AppData\Local\Temp\WINRAR.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1436
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WINRAR.exe" "WINRAR.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1136
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\SysWOW64\wscript.exe" "wscript.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1720
      • C:\Windows\SysWOW64\wscript.exe
        "C:\Windows\SysWOW64\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\WINRAR.vbe"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

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

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • C:\Users\Admin\AppData\Local\Temp\WINRAR.vbe

    Filesize

    54B

    MD5

    eb1be3cf656c1ff8808474c6708f4a93

    SHA1

    395fff9de94a69cc1cb827cb7c591fa8010b52f3

    SHA256

    8234f1321aa2f8bbded30e59b1119943ffb7893046c657c6ce308c3447b1ef5a

    SHA512

    eeb0ea3998eed924898bf35d07c0bb5d8d568abc9238697702754eadd2a5196fbf4aba534b202d0a8741115f0e17559f20b9affb44df12b009f3b135521df775

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\71adf2b4692febb15010f262408d0226.exe

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • \Users\Admin\AppData\Local\Temp\WINRAR.exe

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • \Users\Admin\AppData\Local\Temp\WINRAR.exe

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • \Users\Admin\AppData\Local\Temp\WINRAR.exe

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • \Users\Admin\AppData\Local\Temp\WINRAR.exe

    Filesize

    80KB

    MD5

    2fa8094540f180188743c4efd7629b18

    SHA1

    747f716b1cc02e7d72af9ed06b358539f6743bbf

    SHA256

    ebcd17bfa57ef9527fa142165a0592951fdaa8692e36644bca4aca319463a261

    SHA512

    41675d02b5475a408bae72a47ec7e08e96f0fe29bbc41c69c5734836dcec126eef89e846d62904c9a448b57d1b05afac3d721ff8e39aa03bd384398d700dd27e

  • memory/1436-67-0x0000000074DE0000-0x000000007538B000-memory.dmp

    Filesize

    5.7MB

  • memory/1436-74-0x0000000074DE0000-0x000000007538B000-memory.dmp

    Filesize

    5.7MB

  • memory/1620-73-0x0000000074DE0000-0x000000007538B000-memory.dmp

    Filesize

    5.7MB

  • memory/1620-76-0x0000000074DE0000-0x000000007538B000-memory.dmp

    Filesize

    5.7MB

  • memory/1780-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

    Filesize

    8KB

  • memory/1780-62-0x0000000074DE0000-0x000000007538B000-memory.dmp

    Filesize

    5.7MB

  • memory/1780-55-0x0000000074DE0000-0x000000007538B000-memory.dmp

    Filesize

    5.7MB