Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • 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 14 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:412
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lTZDstzxRzxl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp89BE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2896
    • C:\Users\Admin\AppData\Local\Temp\DHL Document.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Document.exe"
      2⤵
        PID:3508

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp89BE.tmp
      MD5

      9896a77429fd5f7e1f8a9259ae24bd0d

      SHA1

      1ccd5d4cbb6709c5cc91ecc457352d24bf6f877c

      SHA256

      12bbe43a10b0b9bbdc3da59d1882a956ef30de6feb8a6895ca14bc1f9ad035e6

      SHA512

      8ba24bea2e75777b9a8e0e31f6f94d62932caadb402aa15cfea62522288ebc684a5b8251a705ba934cc114dfdbfc1f8deb342eabeb7501b51e23d846752c1c3e

    • memory/412-7-0x0000000004BE0000-0x0000000004BE1000-memory.dmp
      Filesize

      4KB

    • memory/412-12-0x0000000004B40000-0x0000000004B47000-memory.dmp
      Filesize

      28KB

    • memory/412-6-0x0000000005040000-0x0000000005041000-memory.dmp
      Filesize

      4KB

    • memory/412-2-0x0000000073D40000-0x000000007442E000-memory.dmp
      Filesize

      6.9MB

    • memory/412-8-0x0000000004A10000-0x0000000004A11000-memory.dmp
      Filesize

      4KB

    • memory/412-9-0x0000000004C80000-0x0000000004C81000-memory.dmp
      Filesize

      4KB

    • memory/412-5-0x0000000004A40000-0x0000000004A41000-memory.dmp
      Filesize

      4KB

    • memory/412-11-0x0000000005540000-0x0000000005541000-memory.dmp
      Filesize

      4KB

    • memory/412-10-0x0000000004D20000-0x0000000004D21000-memory.dmp
      Filesize

      4KB

    • memory/412-13-0x0000000004FF0000-0x000000000503F000-memory.dmp
      Filesize

      316KB

    • memory/412-3-0x00000000000D0000-0x00000000000D1000-memory.dmp
      Filesize

      4KB

    • memory/2896-14-0x0000000000000000-mapping.dmp
    • memory/3508-16-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/3508-17-0x000000000040242D-mapping.dmp
    • memory/3508-18-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB