Resubmissions

18-11-2020 17:38

201118-q5ksdz5fts 8

18-11-2020 16:27

201118-55lnpg8fkn 8

Analysis

  • max time kernel
    1749s
  • max time network
    1748s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-11-2020 17:38

General

  • Target

    api.exe

  • Size

    22.9MB

  • MD5

    3561a1c35184a0b60b89f4b560a9660d

  • SHA1

    e39442388db90a088a8eb8ce46d4f61182334a1b

  • SHA256

    3f1e28e961239c01602b1ce7555f51778c9f369b059ef07b75a7d9dee70ff8b1

  • SHA512

    7a83a669e8a72d6ec83952c9d57cc8059a6fff6f3564dab69ad50ca939a7d8e3f3d7d9ed74f8d06d060a39f8c4525fcfdcdecf2550c6fe57da0bef3df1f5ee75

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 25 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Windows directory 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies Control Panel 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 46 IoCs
  • Suspicious use of SendNotifyMessage 46 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\api.exe
    "C:\Users\Admin\AppData\Local\Temp\api.exe"
    1⤵
    • Drops file in Drivers directory
    • Checks computer location settings
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Modifies system certificate store
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\SysWOW64\LaunchWinApp.exe
      "C:\Windows\system32\LaunchWinApp.exe" "https://adlice.com/thanks-downloading-diag/?utm_campaign=diag&utm_source=soft&utm_medium=btn"
      2⤵
        PID:1992
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x3f4
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:488
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
      1⤵
      • Drops file in Windows directory
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3832
    • C:\Windows\system32\browser_broker.exe
      C:\Windows\system32\browser_broker.exe -Embedding
      1⤵
      • Modifies Internet Explorer settings
      PID:3916
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2292
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2140
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      PID:4344
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      PID:4504
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      PID:4592
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:680
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x3f4
      1⤵
        PID:2212
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x3f4
        1⤵
          PID:1352

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Bootkit

        1
        T1067

        Defense Evasion

        Modify Registry

        3
        T1112

        Install Root Certificate

        1
        T1130

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        4
        T1012

        System Information Discovery

        3
        T1082

        Peripheral Device Discovery

        2
        T1120

        Collection

        Data from Local System

        1
        T1005

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/680-357-0x000001AEFBE5A000-0x000001AEFBF73000-memory.dmp
          Filesize

          1.1MB

        • memory/680-361-0x000001AEFBE5A000-0x000001AEFBF73000-memory.dmp
          Filesize

          1.1MB

        • memory/1992-8-0x0000000000000000-mapping.dmp
        • memory/2484-92-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-114-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-11-0x0000000010500000-0x0000000010501000-memory.dmp
          Filesize

          4KB

        • memory/2484-14-0x0000000010500000-0x0000000010501000-memory.dmp
          Filesize

          4KB

        • memory/2484-19-0x0000000010500000-0x0000000010501000-memory.dmp
          Filesize

          4KB

        • memory/2484-27-0x0000000010500000-0x0000000010501000-memory.dmp
          Filesize

          4KB

        • memory/2484-47-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-51-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-65-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-77-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-81-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-1-0x0000000005500000-0x0000000005501000-memory.dmp
          Filesize

          4KB

        • memory/2484-97-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-10-0x0000000007ED0000-0x0000000007ED1000-memory.dmp
          Filesize

          4KB

        • memory/2484-148-0x0000000010600000-0x0000000010601000-memory.dmp
          Filesize

          4KB

        • memory/2484-208-0x00000000106E0000-0x00000000106E1000-memory.dmp
          Filesize

          4KB

        • memory/2484-209-0x00000000106E0000-0x00000000106E1000-memory.dmp
          Filesize

          4KB

        • memory/2484-238-0x00000000106E0000-0x00000000106E1000-memory.dmp
          Filesize

          4KB

        • memory/2484-239-0x00000000106E0000-0x00000000106E1000-memory.dmp
          Filesize

          4KB

        • memory/2484-240-0x00000000106E0000-0x00000000106E1000-memory.dmp
          Filesize

          4KB

        • memory/2484-286-0x00000000116B0000-0x00000000116B1000-memory.dmp
          Filesize

          4KB

        • memory/2484-287-0x00000000116B0000-0x00000000116B1000-memory.dmp
          Filesize

          4KB

        • memory/2484-295-0x00000000116B0000-0x00000000116B1000-memory.dmp
          Filesize

          4KB

        • memory/2484-296-0x00000000116B0000-0x00000000116B1000-memory.dmp
          Filesize

          4KB

        • memory/2484-9-0x0000000007DD0000-0x0000000007DD1000-memory.dmp
          Filesize

          4KB

        • memory/2484-5-0x0000000005800000-0x0000000005801000-memory.dmp
          Filesize

          4KB