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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2024, 12:40

General

  • Target

    40e30893fffd8d3add2c9bf05b090787.exe

  • Size

    24KB

  • MD5

    40e30893fffd8d3add2c9bf05b090787

  • SHA1

    372e63c8bdc4da260d0181a76a338a819a90e735

  • SHA256

    98e598bb032d1a79674c2750145420c25478ce7f6d38732921e8208979212c0b

  • SHA512

    5075a748d98e83f96c852d16006fa3db516d64cb61b6dff3aa9e6738e6085fcd657e4bd448a7192a4e8bbe5ce53484a62ff463dfd11ae8753dfb77ab2fe8cf16

  • SSDEEP

    384:E3eVES+/xwGkRKJolM61qmTTMVF9/q5h0:bGS+ZfbJoO8qYoA+

Score
6/10

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Runs net.exe
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40e30893fffd8d3add2c9bf05b090787.exe
    "C:\Users\Admin\AppData\Local\Temp\40e30893fffd8d3add2c9bf05b090787.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ver >c:\windows\temp\flash.log & cmd /c set >>c:\windows\temp\flash.log & ipconfig /all >>c:\windows\temp\flash.log & tasklist >>c:\windows\temp\flash.log & net start>>c:\windows\temp\flash.log & netstat -an >>c:\windows\temp\flash.log
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2272
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c set
        3⤵
          PID:2748
        • C:\Windows\SysWOW64\ipconfig.exe
          ipconfig /all
          3⤵
          • Gathers network information
          PID:2336
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:2488
        • C:\Windows\SysWOW64\net.exe
          net start
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2548
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start
            4⤵
              PID:2552
          • C:\Windows\SysWOW64\NETSTAT.EXE
            netstat -an
            3⤵
            • Gathers network information
            • Suspicious use of AdjustPrivilegeToken
            PID:2608

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • \??\c:\windows\temp\flash.log

        Filesize

        8KB

        MD5

        e986b50e20a86233818c58d9cc289c83

        SHA1

        f396132d2e9d585a48e057b56362ff6975b5996c

        SHA256

        d24de0e25a157b3d00dc300e5609aa4e76666d5fdf191a4169783a1013a73e0c

        SHA512

        25baa6dcd2b14d400cc9dfcaaa7f8335f7976bbec7f7615ce5d2fd86f9da77c3d764840dc43bcf654a1086daa04ddb0222fb6a390376ee6390a83d52abde50d8