Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    03-03-2021 23:22

General

  • Target

    DHL Document.exe

  • Size

    1.1MB

  • MD5

    92900a9f09ad28e0e6068988f85383c4

  • SHA1

    d2088728af43a30bd69fd4bff9db5e9a6f54d55c

  • SHA256

    73429ed369e556843e28f21b233a49aa9cc7b55d36c5be69f3745a75d17eaf1f

  • SHA512

    77ff1b0a1d99f92204955a60599953965292ead8dc41c2b993a4c522350eeb50efead8fcc7500d72e823b04efa6165e750fcc5f5f793f8af192252cebc354d40

Malware Config

Signatures

  • NetWire RAT payload 3 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • 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 use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Document.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Document.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lTZDstzxRzxl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5F30.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:584
    • C:\Users\Admin\AppData\Local\Temp\DHL Document.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Document.exe"
      2⤵
        PID:808

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp5F30.tmp

      MD5

      6962341ccb489bfd94f195a33c39f6c3

      SHA1

      e92941236535e5a7b5e02a95fce3afff7f407b1d

      SHA256

      d5a88084a8cca11ad358a532e184d3b24643ef494acb8f2dac6e098923030682

      SHA512

      8ee22c00cd801ea75241fbb20a1b65fb332a0c21d89bf5017b8361c26a5283ca8630d35896d0bcf8b0f64a880a987cfb55c2bb9aec7a7e1751583d88fc1a0683

    • memory/584-8-0x0000000000000000-mapping.dmp

    • memory/808-10-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/808-11-0x000000000040242D-mapping.dmp

    • memory/808-12-0x0000000076371000-0x0000000076373000-memory.dmp

      Filesize

      8KB

    • memory/808-13-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/1832-2-0x0000000074900000-0x0000000074FEE000-memory.dmp

      Filesize

      6.9MB

    • memory/1832-3-0x0000000000E20000-0x0000000000E21000-memory.dmp

      Filesize

      4KB

    • memory/1832-5-0x0000000000270000-0x0000000000277000-memory.dmp

      Filesize

      28KB

    • memory/1832-6-0x00000000023C0000-0x00000000023C1000-memory.dmp

      Filesize

      4KB

    • memory/1832-7-0x0000000000960000-0x00000000009AF000-memory.dmp

      Filesize

      316KB