Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    08-07-2021 12:05

General

  • Target

    DHL_PACKAGE_HD98232.pdf.exe

  • Size

    1.3MB

  • MD5

    0e72b26fbd7f27c2753c02193337c280

  • SHA1

    fc000dd71eeace99e08c54e6a8ec6d578c80ed20

  • SHA256

    6095dd10965d4e081e87c366736e0305b7d42f84dbdb10471bcedacfe145f7a5

  • SHA512

    0f222aef8358f3a712871316eb9aa1c24efc36c90396701c4cbae558a3e52bab6c6acedd2a21555e914204fab47f30b586a6322a81fa925042c05eda4ec34950

Malware Config

Signatures

  • RevcodeRat, WebMonitorRat

    WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.

  • WebMonitor Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_PACKAGE_HD98232.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL_PACKAGE_HD98232.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6181.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:864
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1536
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1524

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6181.tmp

      MD5

      29047727459169c1a38a2deda91e10bc

      SHA1

      da41255f155b7d477269a6720cfeebadbb836cef

      SHA256

      2f54ab283a834f10fa48c169e8a6065d179bebdc49941ad2ddb3a1530c5047d0

      SHA512

      c3c6a57ee2d00bdf411ae841f447ab312af486e5178e03b8ff84986a272794765d05d01322e63243a119f89e6440e09ebd6b2d626165c089b5ce8ade104eb471

    • memory/864-65-0x0000000000000000-mapping.dmp

    • memory/1348-59-0x0000000000210000-0x0000000000211000-memory.dmp

      Filesize

      4KB

    • memory/1348-61-0x0000000004C70000-0x0000000004C71000-memory.dmp

      Filesize

      4KB

    • memory/1348-62-0x00000000003F0000-0x00000000003FF000-memory.dmp

      Filesize

      60KB

    • memory/1348-63-0x0000000007FB0000-0x00000000080B0000-memory.dmp

      Filesize

      1024KB

    • memory/1348-64-0x00000000091E0000-0x00000000092E4000-memory.dmp

      Filesize

      1.0MB

    • memory/1524-67-0x0000000000400000-0x00000000004F3000-memory.dmp

      Filesize

      972KB

    • memory/1524-68-0x000000000049D8CA-mapping.dmp

    • memory/1524-69-0x00000000762C1000-0x00000000762C3000-memory.dmp

      Filesize

      8KB

    • memory/1524-70-0x0000000000400000-0x00000000004F3000-memory.dmp

      Filesize

      972KB

    • memory/1524-71-0x0000000002F40000-0x0000000003F40000-memory.dmp

      Filesize

      16.0MB