Overview

overview

10

Static

static

9

ca7b714d45...ef.exe

windows7_x64

10

ca7b714d45...ef.exe

windows10_x64

10

Analysis

  • max time kernel
    124s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 20:25

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General

  • Target
    ca7b714d4501ec386efecaecdd0181d83de489321ddbd38da8efeb9925dc7bef.exe
  • Size 15.3MB
  • Sample201109-jeejdq37wx
  • SHA256 ca7b714d4501ec386efecaecdd0181d83de489321ddbd38da8efeb9925dc7bef
  • MD5 SHA1 SHA512
Score
10/10
evasiontrojanupx

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
    evasion
  • UAC bypass 3 TTPs
    evasiontrojan
  • Windows security bypass 2 TTPs
    evasiontrojan
  • UPX packed file 1 IoCs

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

    upx
  • Windows security modification 2 TTPs 7 IoCs
    evasiontrojan
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Windows directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 161 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 132 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:712
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:716
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:960
        • c:\windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2952
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
            1⤵
              PID:2976
            • c:\windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:3060
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3128
                  • C:\Users\Admin\AppData\Local\Temp\ca7b714d4501ec386efecaecdd0181d83de489321ddbd38da8efeb9925dc7bef.exe
                    "C:\Users\Admin\AppData\Local\Temp\ca7b714d4501ec386efecaecdd0181d83de489321ddbd38da8efeb9925dc7bef.exe"
                    2⤵
                    • Modifies firewall policy service
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Enumerates connected drives
                    • Drops file in Windows directory
                    • Checks processor information in registry
                    • Modifies registry class
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:984
                • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
                  "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
                  1⤵
                    PID:3376
                  • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
                    "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
                    1⤵
                      PID:3400
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      1⤵
                        PID:3624
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3892

                        Network

                              MITRE ATT&CK Enterprise v6

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                              Downloads

                              memory/984-0-0x0000000001AE0000-0x0000000002B9A000-memory.dmp
                              Download