Overview

overview

10

Static

static

4342092be0...b6.exe

windows7_x64

10

4342092be0...b6.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:00

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General

  • Target

    4342092be0d494e067341332e3831f9f8c6051286e3adec975e88cd3d524beb6.exe

  • Size

    118KB

  • MD5

    b2a783306993be4df58e0bdf5f40f5e4

  • SHA1

    ff0daa080adc166de359d40b387711910ee277a8

  • SHA256

    4342092be0d494e067341332e3831f9f8c6051286e3adec975e88cd3d524beb6

  • SHA512

    522f6e672f69f6e328b9152b8b0caea4943a3936eed1accdb21f7cccd06a990f0b79b85853cd835dd1607aaf9156a7efa925e19fa37043dc4c350a8cd53f7208

Score
10/10
evasionpersistencetrojan

Malware Config

Signatures

  • UAC bypass 3 TTPs
    evasiontrojan
  • Modifies Installed Components in the registry 2 TTPs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 28 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 5 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 42 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 62 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4342092be0d494e067341332e3831f9f8c6051286e3adec975e88cd3d524beb6.exe
    "C:\Users\Admin\AppData\Local\Temp\4342092be0d494e067341332e3831f9f8c6051286e3adec975e88cd3d524beb6.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4204
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • Modifies registry key
        PID:4636
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:4556
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:4660
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4916
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2780
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:2624

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Bypass User Account Control

    1
    T1088

    Defense Evasion

    Bypass User Account Control

    1
    T1088

    Disabling Security Tools

    1
    T1089

    Modify Registry

    3
    T1112

    Credential Access

    Discovery

    Query Registry

    5
    T1012

    System Information Discovery

    6
    T1082

    Peripheral Device Discovery

    2
    T1120

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/2432-130-0x0000000000610000-0x0000000000634000-memory.dmp
      Filesize

      144KB

      Download
    • memory/2780-141-0x000002EAE12D0000-0x000002EAE12F0000-memory.dmp
      Filesize

      128KB

      Download
    • memory/2780-143-0x000002EAE4480000-0x000002EAE44A0000-memory.dmp
      Filesize

      128KB

      Download
    • memory/2780-147-0x000002EAE02F0000-0x000002EAE02F8000-memory.dmp
      Filesize

      32KB

      Download
    • memory/2780-158-0x000002EAE39D0000-0x000002EAE39F0000-memory.dmp
      Filesize

      128KB

      Download
    • memory/2780-209-0x000002EAE464A000-0x000002EAE464D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/2780-210-0x000002EAE464A000-0x000002EAE464D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/2780-212-0x000002EAE464A000-0x000002EAE464D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/2780-211-0x000002EAE464A000-0x000002EAE464D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/4204-131-0x0000000000000000-mapping.dmp
      Download
    • memory/4636-132-0x0000000000000000-mapping.dmp
      Download