Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2024, 14:40

General

  • Target

    43f0682f83485ae3dd505a8e916b409e.exe

  • Size

    24KB

  • MD5

    43f0682f83485ae3dd505a8e916b409e

  • SHA1

    e412feb81968ecc86d5df83d5b1ce4940bc00ee6

  • SHA256

    198597b7db8721407a106b440a7503ce8ba47295a45daa0db134deec92dea45b

  • SHA512

    fc9c0efd9a0281e4d5b96b88d4135caf4b6518e5dee3c43e4cebc38452bd77cd6db16dcd710922701c65206f616d3e415c47e8b31e652a1f4b95397f6aff97ea

  • SSDEEP

    384:E3eVES+/xwGkRKJ5RMlM61qmTTMVF9/q5G0:bGS+ZfbJ5RMO8qYoAv

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\43f0682f83485ae3dd505a8e916b409e.exe
    "C:\Users\Admin\AppData\Local\Temp\43f0682f83485ae3dd505a8e916b409e.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2332
    • 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:2992
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c set
        3⤵
          PID:2844
        • C:\Windows\SysWOW64\ipconfig.exe
          ipconfig /all
          3⤵
          • Gathers network information
          PID:1940
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:1308
        • C:\Windows\SysWOW64\net.exe
          net start
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2644
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start
            4⤵
              PID:2664
          • C:\Windows\SysWOW64\NETSTAT.EXE
            netstat -an
            3⤵
            • Gathers network information
            • Suspicious use of AdjustPrivilegeToken
            PID:2868

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • \??\c:\windows\temp\flash.log

        Filesize

        8KB

        MD5

        a525ded2c227f249aae3d66b4c1f4693

        SHA1

        ad6973aa1f8860234b3a130b0761337d30256141

        SHA256

        abff6d4013b2f1bb2ed7a86393f93512d7f5e1406e29754f2c496802ab203110

        SHA512

        d5bff06886bac2e0a1409cb07faebe9259166b44d329ba42532d921bbf011391b62b044865b6d44285d0033fd1c31ae153c089bbed3894a239dbd08dddde823f