Analysis

  • max time kernel
    134s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04-03-2021 00:16

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:1192
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lTZDstzxRzxl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp782A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:980
    • C:\Users\Admin\AppData\Local\Temp\DHL Document.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Document.exe"
      2⤵
        PID:660

    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\tmp782A.tmp
      MD5

      734e3f0480ca10f9b9cedc6d451e7d12

      SHA1

      9c113cfb6c427b9f547ae6ae315698f07d15b7e5

      SHA256

      21b877010f002f6c7a0b8e37e37dc84eca0ceaa358544b428fb9ef5a5f167875

      SHA512

      b0dc7201d1c3ffd85707677d0f93e4097bb527c805f912448ab2b8e0f395d163c9134b850ec3b0f86a7f1744400224e7c11d33fa2b2d3b89f53050a12a0fcbd4

    • memory/660-18-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/660-17-0x000000000040242D-mapping.dmp
    • memory/660-16-0x0000000000400000-0x0000000000433000-memory.dmp
      Filesize

      204KB

    • memory/980-14-0x0000000000000000-mapping.dmp
    • memory/1192-7-0x0000000005150000-0x0000000005151000-memory.dmp
      Filesize

      4KB

    • memory/1192-9-0x00000000052B0000-0x00000000052B1000-memory.dmp
      Filesize

      4KB

    • memory/1192-10-0x0000000005B50000-0x0000000005B51000-memory.dmp
      Filesize

      4KB

    • memory/1192-11-0x00000000050F0000-0x00000000050F7000-memory.dmp
      Filesize

      28KB

    • memory/1192-12-0x00000000053B0000-0x00000000053B1000-memory.dmp
      Filesize

      4KB

    • memory/1192-13-0x0000000005FC0000-0x000000000600F000-memory.dmp
      Filesize

      316KB

    • memory/1192-8-0x0000000005070000-0x0000000005071000-memory.dmp
      Filesize

      4KB

    • memory/1192-2-0x0000000073D20000-0x000000007440E000-memory.dmp
      Filesize

      6.9MB

    • memory/1192-6-0x0000000005650000-0x0000000005651000-memory.dmp
      Filesize

      4KB

    • memory/1192-5-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
      Filesize

      4KB

    • memory/1192-3-0x0000000000690000-0x0000000000691000-memory.dmp
      Filesize

      4KB