Analysis

  • max time kernel
    157s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/01/2024, 08:01

General

  • Target

    a632a39ffdce2f2de984c6992d188986.exe

  • Size

    533KB

  • MD5

    a632a39ffdce2f2de984c6992d188986

  • SHA1

    7a1bb8fea06c819b7e575f9ef431af09151837eb

  • SHA256

    6800905847788c228e211fd1086dad6a20aa745d1351c0bd43d5f89aa58b1c9e

  • SHA512

    a7a6f0bc2448f3222652882893c9b14e21f073dce0dc0509c534bd0e1219a8860278be485a1b41333f7b9dc969431aacd54701f4ca7eb9d615ffdf192452244b

  • SSDEEP

    12288:HLV6Btpmklh0YDwhTOSq5nyxUnfMgE9Pb/ji7u8LW:rApflh0Ik5vanhI/ku86

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe
    "C:\Users\Admin\AppData\Local\Temp\a632a39ffdce2f2de984c6992d188986.exe"
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:324
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp45F3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1268
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp60FE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1616

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp45F3.tmp

          Filesize

          1KB

          MD5

          029e60b39959bba895979975e33b96a5

          SHA1

          ebd492c14ffb3733d315adc7378175a4de8d4104

          SHA256

          037de60417e4d3866d82505a021651fd8101ad0c4270e86a1cc3c272dde08196

          SHA512

          8977daaa0da4713c3802562402731d201c063385cd86728e81528a4b419f8a8302f6408e53906b69ebace2fc83b5567c2a6b6cf25958b3f73db3874909ef82bd

        • C:\Users\Admin\AppData\Local\Temp\tmp60FE.tmp

          Filesize

          1KB

          MD5

          a1e72d32044df2250a28d62375b19f15

          SHA1

          f82e0131f1a1fcbf825544cd2cc25e28174c47ee

          SHA256

          b3e2fff6289e337bc83c056904dad620e5edc7f28ac3690ab4900f3ec90df799

          SHA512

          df04c1f421c3d2ed3c928e388aa068be0c3b1bd16348f2692a63c641ec6cd3b103525a8e39298566a395f863fc23a3e29cf2ae50f3e68b5ffba981241587a88b

        • memory/324-6-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

          Filesize

          64KB

        • memory/324-8-0x000000001BD10000-0x000000001BDB6000-memory.dmp

          Filesize

          664KB

        • memory/324-4-0x000000001B690000-0x000000001BB5E000-memory.dmp

          Filesize

          4.8MB

        • memory/324-5-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

          Filesize

          9.6MB

        • memory/324-0-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

          Filesize

          9.6MB

        • memory/324-7-0x0000000000AE0000-0x0000000000B7C000-memory.dmp

          Filesize

          624KB

        • memory/324-1-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

          Filesize

          9.6MB

        • memory/324-9-0x0000000000810000-0x0000000000818000-memory.dmp

          Filesize

          32KB

        • memory/324-10-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

          Filesize

          64KB

        • memory/324-13-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

          Filesize

          64KB

        • memory/324-3-0x00007FFC8D7D0000-0x00007FFC8E171000-memory.dmp

          Filesize

          9.6MB

        • memory/324-2-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

          Filesize

          64KB

        • memory/324-23-0x0000000000BD0000-0x0000000000BDE000-memory.dmp

          Filesize

          56KB

        • memory/324-20-0x0000000000CE0000-0x0000000000CEA000-memory.dmp

          Filesize

          40KB

        • memory/324-21-0x00000000008E0000-0x00000000008F2000-memory.dmp

          Filesize

          72KB

        • memory/324-22-0x000000001CB10000-0x000000001CB2A000-memory.dmp

          Filesize

          104KB

        • memory/324-19-0x000000001C1B0000-0x000000001C2B0000-memory.dmp

          Filesize

          1024KB

        • memory/324-24-0x000000001CB30000-0x000000001CB3E000-memory.dmp

          Filesize

          56KB

        • memory/324-25-0x000000001CB40000-0x000000001CB4C000-memory.dmp

          Filesize

          48KB

        • memory/324-26-0x000000001CB50000-0x000000001CB64000-memory.dmp

          Filesize

          80KB

        • memory/324-27-0x00000000007F0000-0x0000000000800000-memory.dmp

          Filesize

          64KB

        • memory/324-28-0x00000000008A0000-0x00000000008B4000-memory.dmp

          Filesize

          80KB

        • memory/324-29-0x00000000008C0000-0x00000000008CE000-memory.dmp

          Filesize

          56KB

        • memory/324-30-0x000000001CB60000-0x000000001CB7E000-memory.dmp

          Filesize

          120KB