Analysis

  • max time kernel
    142s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    08/10/2020, 07:38

General

  • Target
    e8002fbc4bd5e57fd317fb99e3bb2bc8965e94761e37757aed51f3f21486c0ad.msi
  • Size 6.7MB
  • Sample201008-34xyn95xde
  • SHA256 e8002fbc4bd5e57fd317fb99e3bb2bc8965e94761e37757aed51f3f21486c0ad
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • ServiceHost packer 10 IoCs

    Detects ServiceHost packer used for .NET malware

  • Blacklisted process makes network request 4 IoCs
  • Executes dropped EXE 15 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Loads dropped DLL 16 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Modifies service 2 TTPs 163 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 12 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 96 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 109 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\e8002fbc4bd5e57fd317fb99e3bb2bc8965e94761e37757aed51f3f21486c0ad.msi
    1⤵
    • Blacklisted process makes network request
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3608
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Modifies service
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Modifies service
      PID:2268
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0CB679E4C1905B294B76A55A4CC777B9
      2⤵
      • Loads dropped DLL
      • Modifies Control Panel
      • Suspicious use of WriteProcessMemory
      PID:752
      • C:\Windows\SysWOW64\expand.exe
        "C:\Windows\System32\expand.exe" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2172
      • C:\Users\Admin\AppData\Local\Temp\MW-fb82572e-8f4f-4b79-8f4f-c9125ff100cb\files\Setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-fb82572e-8f4f-4b79-8f4f-c9125ff100cb\files\Setup.exe" /SP- /VERYSILENT
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:496
        • C:\Users\Admin\AppData\Local\Temp\is-SS4N0.tmp\Setup.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-SS4N0.tmp\Setup.tmp" /SL5="$70032,6651823,721408,C:\Users\Admin\AppData\Local\Temp\MW-fb82572e-8f4f-4b79-8f4f-c9125ff100cb\files\Setup.exe" /SP- /VERYSILENT
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Program Files directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:4028
          • C:\Program Files (x86)\build.exe
            "C:\Program Files (x86)\build.exe"
            5⤵
            • Executes dropped EXE
            PID:2980
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 808
              6⤵
              • Program crash
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:4332
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\ProgramData\AuEyy\MMF2.vbs"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2396
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\ProgramData\AuEyy\main.bat" "
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:2920
              • C:\Windows\SysWOW64\mode.com
                mode 65,10
                7⤵
                  PID:4220
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e file.zip -p___________15024pwd10466pwd8827___________ -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4356
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_10.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4424
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_9.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4484
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_8.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4520
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_7.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4552
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_6.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4584
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_5.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4632
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_4.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4792
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_3.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4840
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_2.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4904
                • C:\ProgramData\AuEyy\7z.exe
                  7z.exe e extracted/file_1.zip -oextracted
                  7⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4964
                • C:\ProgramData\AuEyy\Setup.exe
                  "Setup.exe"
                  7⤵
                  • Executes dropped EXE
                  • Checks BIOS information in registry
                  • Loads dropped DLL
                  • Checks whether UAC is enabled
                  • Suspicious behavior: EnumeratesProcesses
                  PID:5012
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\ProgramData\AuEyy\DiskRemoval.bat" "
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:4116
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /T 60 /NOBREAK
                  7⤵
                  • Delays execution with timeout.exe
                  PID:4232
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-fb82572e-8f4f-4b79-8f4f-c9125ff100cb\files"
          3⤵
            PID:4320
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding E7760D235C3CC7A3030C8E6D3BF9B59B E Global\MSI0000
          2⤵
          • Loads dropped DLL
          PID:4152
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Modifies service
        • Suspicious use of AdjustPrivilegeToken
        PID:1452
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s DsmSvc
        1⤵
        • Checks SCSI registry key(s)
        • Modifies data under HKEY_USERS
        PID:3968

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/2980-33-0x00000000048E0000-0x00000000048E1000-memory.dmp

            memory/2980-30-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

            memory/2980-27-0x0000000000010000-0x0000000000011000-memory.dmp

            memory/2980-24-0x0000000071070000-0x000000007175E000-memory.dmp

            memory/3608-0-0x0000025E8B5E0000-0x0000025E8B5E4000-memory.dmp

            memory/4332-93-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-123-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-94-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-91-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-98-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-99-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-100-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-101-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-102-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-103-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-105-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-104-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-106-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-107-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-81-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-109-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-110-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-83-0x0000000005600000-0x0000000005601000-memory.dmp

            memory/4332-112-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-89-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-88-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-115-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-84-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-117-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-87-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-118-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-121-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-120-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-122-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-95-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-124-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-125-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-85-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-61-0x0000000005510000-0x0000000005511000-memory.dmp

            memory/4332-46-0x0000000004C00000-0x0000000004C01000-memory.dmp

            memory/4332-129-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-130-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-86-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-132-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-133-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-134-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/4332-135-0x00000000033C0000-0x00000000033C1000-memory.dmp

            memory/5012-149-0x0000000071070000-0x000000007175E000-memory.dmp

            memory/5012-150-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

            memory/5012-152-0x0000000002D00000-0x0000000002D25000-memory.dmp

            memory/5012-154-0x0000000005430000-0x0000000005431000-memory.dmp