Analysis

  • max time kernel
    77s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • 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
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 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:3872
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp51E9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4052
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3636
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\quQxgzOdP65CHHD4.bat" "
        3⤵
          PID:584

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\quQxgzOdP65CHHD4.bat

      MD5

      a92866b463715c137dca08d7733c0fbb

      SHA1

      525673b55b6e525a10fd75c216b8412ed9c68451

      SHA256

      5f6b850691c688be5432e1b3bf587b5d61d578874e09ff19f0054c105b64e0ec

      SHA512

      6a31b95364559dbbaf43695070ab4066d874049912e91eef66cae113b4160eef79d8e6d6d4ad9943786c82666dfc12a31a81d569e630ac038dd52b1a9be4292b

    • C:\Users\Admin\AppData\Local\Temp\tmp51E9.tmp

      MD5

      8418b94adf7e2db9572e4f785f334b5b

      SHA1

      5c9ed0c6481a2e30d07db7871d44f9b659ec2669

      SHA256

      4ec401f774064973966e832ff4c497d8e6281c0ea45f27e452b4572d096fa1f5

      SHA512

      010ef727df25ffd96012c755d8d6e8fdce015ee7f756fd1a864d7d41b8c6a9bb0a7ce0cc8da331a0993c2fe24ea2f183269b795aa4675a44ded4e0da3c3e11b2

    • memory/584-130-0x0000000000000000-mapping.dmp

    • memory/3636-129-0x0000000000400000-0x00000000004F3000-memory.dmp

      Filesize

      972KB

    • memory/3636-128-0x000000000049D8CA-mapping.dmp

    • memory/3636-127-0x0000000000400000-0x00000000004F3000-memory.dmp

      Filesize

      972KB

    • memory/3872-119-0x0000000005230000-0x0000000005231000-memory.dmp

      Filesize

      4KB

    • memory/3872-122-0x0000000005570000-0x000000000557F000-memory.dmp

      Filesize

      60KB

    • memory/3872-123-0x0000000008A40000-0x0000000008B40000-memory.dmp

      Filesize

      1024KB

    • memory/3872-124-0x000000000B130000-0x000000000B234000-memory.dmp

      Filesize

      1.0MB

    • memory/3872-121-0x00000000052A0000-0x000000000579E000-memory.dmp

      Filesize

      5.0MB

    • memory/3872-120-0x00000000054C0000-0x00000000054C1000-memory.dmp

      Filesize

      4KB

    • memory/3872-114-0x0000000000840000-0x0000000000841000-memory.dmp

      Filesize

      4KB

    • memory/3872-118-0x0000000005340000-0x0000000005341000-memory.dmp

      Filesize

      4KB

    • memory/3872-117-0x00000000057A0000-0x00000000057A1000-memory.dmp

      Filesize

      4KB

    • memory/3872-116-0x0000000005160000-0x0000000005161000-memory.dmp

      Filesize

      4KB

    • memory/4052-125-0x0000000000000000-mapping.dmp