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Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 15:35

General

  • Target

    33e41c9553f7f25de5b37f03c20e33a2d20465a07653ded2061fdb77607131f7.dll

  • Size

    200KB

  • MD5

    52aa10dee472357f557e80233c934493

  • SHA1

    52defda0020931021e5a7543af5ca5405c19341b

  • SHA256

    33e41c9553f7f25de5b37f03c20e33a2d20465a07653ded2061fdb77607131f7

  • SHA512

    a155c8f50a3ed087b777a7bb22c4021b264d03dc3bd747571cee9086996c65c7b235539cbdddfad388875d044468e16b8a0fd7b757378b4a930f8c60e42becea

  • SSDEEP

    6144:X1kmVe2cbY+idfSIfNuLP8qt0mtdHLhkDD:X1kmVJck+idfSIfMLEqGedKD

Score
8/10

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer Protected Mode 1 TTPs 15 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 38 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 13 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\33e41c9553f7f25de5b37f03c20e33a2d20465a07653ded2061fdb77607131f7.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\33e41c9553f7f25de5b37f03c20e33a2d20465a07653ded2061fdb77607131f7.dll,#1
      2⤵
      • Modifies Internet Explorer Protected Mode
      • Modifies Internet Explorer Protected Mode Banner
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
          PID:1568
        • C:\Windows\SysWOW64\notepad.exe
          notepad.exe
          3⤵
          • Modifies Internet Explorer Protected Mode
          • Modifies Internet Explorer Protected Mode Banner
          • Modifies Internet Explorer settings
          • Suspicious behavior: EnumeratesProcesses
          PID:1736
        • C:\Windows\SysWOW64\notepad.exe
          notepad.exe
          3⤵
          • Modifies Internet Explorer Protected Mode
          • Modifies Internet Explorer Protected Mode Banner
          • Modifies Internet Explorer settings
          • Suspicious behavior: EnumeratesProcesses
          PID:1248
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{682159d9-c321-47ca-b3f1-30e36b2ec8b9} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        2⤵
        • Suspicious use of FindShellTrayWindow
        PID:284
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:776
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:776 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:580

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\CVYJYG07.txt

      Filesize

      608B

      MD5

      5e1b5784af91033c8aca099516b92177

      SHA1

      301a7d8cfaf4a532153efa598b01750112faebd5

      SHA256

      9af86fde05364abd7b846a8f8f0f139bf41802f31e6f76f68ed0fb53b7aec17b

      SHA512

      ceb1c00f0a8f70fdcfd485d5b32fa4416d623e90972f50e2341edaef560baf62b330932be0f7b6b77a46ad6ea71edf4686352d041b248caeb3fa36b657b02584

    • memory/856-68-0x000007FEFBE11000-0x000007FEFBE13000-memory.dmp

      Filesize

      8KB

    • memory/856-70-0x00000000037C0000-0x00000000037D0000-memory.dmp

      Filesize

      64KB

    • memory/1248-81-0x00000000004B0000-0x00000000004E1000-memory.dmp

      Filesize

      196KB

    • memory/1248-78-0x00000000004B0000-0x00000000004E1000-memory.dmp

      Filesize

      196KB

    • memory/1248-77-0x00000000003B0000-0x00000000003E6000-memory.dmp

      Filesize

      216KB

    • memory/1248-76-0x0000000000300000-0x0000000000331000-memory.dmp

      Filesize

      196KB

    • memory/1568-67-0x00000000748A1000-0x00000000748A3000-memory.dmp

      Filesize

      8KB

    • memory/1736-72-0x00000000002E0000-0x0000000000316000-memory.dmp

      Filesize

      216KB

    • memory/1736-80-0x0000000001E80000-0x0000000001EB1000-memory.dmp

      Filesize

      196KB

    • memory/1736-73-0x0000000001E80000-0x0000000001EB1000-memory.dmp

      Filesize

      196KB

    • memory/1736-71-0x0000000000210000-0x0000000000241000-memory.dmp

      Filesize

      196KB

    • memory/1956-57-0x00000000002C0000-0x00000000002F6000-memory.dmp

      Filesize

      216KB

    • memory/1956-58-0x00000000007B0000-0x00000000007E1000-memory.dmp

      Filesize

      196KB

    • memory/1956-61-0x00000000007B0000-0x00000000007E1000-memory.dmp

      Filesize

      196KB

    • memory/1956-62-0x00000000007B0000-0x00000000007E1000-memory.dmp

      Filesize

      196KB

    • memory/1956-59-0x00000000007B0000-0x00000000007E1000-memory.dmp

      Filesize

      196KB

    • memory/1956-79-0x00000000007B0000-0x00000000007E1000-memory.dmp

      Filesize

      196KB

    • memory/1956-56-0x0000000000130000-0x0000000000161000-memory.dmp

      Filesize

      196KB

    • memory/1956-60-0x00000000007B0000-0x00000000007E1000-memory.dmp

      Filesize

      196KB

    • memory/1956-55-0x00000000758C1000-0x00000000758C3000-memory.dmp

      Filesize

      8KB