Analysis

  • max time kernel
    72s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08-07-2021 13:14

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:644
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sKUmEKiiItxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp738B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3576
    • 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:1272
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Cp23lHGXUg798Zno.bat" "
        3⤵
          PID:3732

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cp23lHGXUg798Zno.bat

      MD5

      70fc35793857e44ca73f9baac5839600

      SHA1

      1e1d5a041ab00487c42acca383cd794728f0420c

      SHA256

      e6f6623d7dcd6a40ba599bdfe61ff798dc767ddcec8f14fa12b1d4f3f79455ba

      SHA512

      eb2092951cbb9d1ae3a028e9318e6a4d16e9f64bc0493fe6c44166580c75bd4ce0ac026fd52d75afabb13b26690fd95329e5993a69427504d776cf2e55d1694a

    • C:\Users\Admin\AppData\Local\Temp\tmp738B.tmp

      MD5

      fc0903577fbe7a6237335df193c5f502

      SHA1

      64352d57c875e42cb03a031d0c1865206da246f2

      SHA256

      0595581fdf503f6b207596332ab573d9e067031d9a93a7b8dce0091446c3ce81

      SHA512

      fa41c7f6ce59e13f0bf4ac20a0680c121b651378e69a3b103c7eebd8619c684fa8c479a360f1015cb11923dfbacb687dce44681174fe2cce110eb67de071fae0

    • memory/644-123-0x00000000089E0000-0x0000000008AE0000-memory.dmp

      Filesize

      1024KB

    • memory/644-124-0x000000000C0D0000-0x000000000C1D4000-memory.dmp

      Filesize

      1.0MB

    • memory/644-119-0x00000000050A0000-0x00000000050A1000-memory.dmp

      Filesize

      4KB

    • memory/644-120-0x0000000005390000-0x0000000005391000-memory.dmp

      Filesize

      4KB

    • memory/644-121-0x0000000005050000-0x00000000050EC000-memory.dmp

      Filesize

      624KB

    • memory/644-122-0x0000000005570000-0x000000000557F000-memory.dmp

      Filesize

      60KB

    • memory/644-114-0x0000000000740000-0x0000000000741000-memory.dmp

      Filesize

      4KB

    • memory/644-118-0x0000000005230000-0x0000000005231000-memory.dmp

      Filesize

      4KB

    • memory/644-116-0x00000000050F0000-0x00000000050F1000-memory.dmp

      Filesize

      4KB

    • memory/644-117-0x0000000005730000-0x0000000005731000-memory.dmp

      Filesize

      4KB

    • memory/1272-127-0x0000000000400000-0x00000000004F3000-memory.dmp

      Filesize

      972KB

    • memory/1272-128-0x000000000049D8CA-mapping.dmp

    • memory/1272-129-0x0000000000400000-0x00000000004F3000-memory.dmp

      Filesize

      972KB

    • memory/3576-125-0x0000000000000000-mapping.dmp

    • memory/3732-130-0x0000000000000000-mapping.dmp