Analysis

  • max time kernel
    178s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2022, 01:32

General

  • Target

    fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead.exe

  • Size

    764KB

  • MD5

    fdae058e80f98616f4fdce735ab07e47

  • SHA1

    525a3a9806312b69722f8bc1c33cb066429855bd

  • SHA256

    fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead

  • SHA512

    f2097e5983f9e2386312474855c10a07f162ed44fe42f404bc4814347af63a575162e0e3f942b0da00f3b9553211e6f1f68acb49e3d4af610ceb9a0029bfd0c5

  • SSDEEP

    12288:VM5DSN6aAH0vN32GXeWa7U8oico9hJMBex+gQL0:VM5D1kN370NVlxnF

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead.exe
    "C:\Users\Admin\AppData\Local\Temp\fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe C:\Users\Admin\AppData\Local\Temp\fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead
      2⤵
        PID:2148
      • \??\c:\Win\lsass.exe
        c:\Win\lsass.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Enumerates connected drives
        • Suspicious behavior: GetForegroundWindowSpam
        PID:780
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:1060
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4560

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Win\lsass.exe

              Filesize

              764KB

              MD5

              fdae058e80f98616f4fdce735ab07e47

              SHA1

              525a3a9806312b69722f8bc1c33cb066429855bd

              SHA256

              fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead

              SHA512

              f2097e5983f9e2386312474855c10a07f162ed44fe42f404bc4814347af63a575162e0e3f942b0da00f3b9553211e6f1f68acb49e3d4af610ceb9a0029bfd0c5

            • \??\c:\Win\lsass.exe

              Filesize

              764KB

              MD5

              fdae058e80f98616f4fdce735ab07e47

              SHA1

              525a3a9806312b69722f8bc1c33cb066429855bd

              SHA256

              fb691050e97b988db80ec165bff3c702da08eb05e4d3ac46c77bcf4a3fa18ead

              SHA512

              f2097e5983f9e2386312474855c10a07f162ed44fe42f404bc4814347af63a575162e0e3f942b0da00f3b9553211e6f1f68acb49e3d4af610ceb9a0029bfd0c5

            • memory/404-132-0x0000000000400000-0x000000000052D000-memory.dmp

              Filesize

              1.2MB

            • memory/404-136-0x0000000000400000-0x000000000052D000-memory.dmp

              Filesize

              1.2MB

            • memory/780-138-0x0000000000400000-0x000000000052D000-memory.dmp

              Filesize

              1.2MB

            • memory/780-139-0x0000000000400000-0x000000000052D000-memory.dmp

              Filesize

              1.2MB