Analysis

  • max time kernel
    85s
  • max time network
    184s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-07-2021 22:04

General

  • Target

    767E1C497FF0D617DE66C2D8ECE44C49.exe

  • Size

    203KB

  • MD5

    767e1c497ff0d617de66c2d8ece44c49

  • SHA1

    118e1e764cd05b98c631bb9a5687acae94f208e1

  • SHA256

    f84b3abd9e10ed3595fb957ba10f2c222fa6ac99605bbfd768cc65ee4f59e6e8

  • SHA512

    f24acf37c91c0fbfb02c17566d5b9d3ff548bd414d11f343ab56b4105d257721fc54c57254d3078ae30d4ec54d403eb5af3e50a648b4b1f8c579d745f50b492c

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 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\767E1C497FF0D617DE66C2D8ECE44C49.exe
    "C:\Users\Admin\AppData\Local\Temp\767E1C497FF0D617DE66C2D8ECE44C49.exe"
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "LAN Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAB5C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1792
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "LAN Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAC95.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1756

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAB5C.tmp

    MD5

    67804f816e379fb05d068938dfa88076

    SHA1

    9f7d749bb4e76adccd4720a80513df2cf459ad2f

    SHA256

    6a460eaaabdb9c64cc3f9f19ea8d135e4f44ba4f5cd0da36dbad5e8a68d96136

    SHA512

    0b57be2044357e2be038a7d7790a9330e87f3ec5e12df39852e72390548930545e8b4092333489253044176959a88f8ab3f86eb5b576daab89fadadd58907bcd

  • C:\Users\Admin\AppData\Local\Temp\tmpAC95.tmp

    MD5

    54865f98871478b2b88b7f8aa6100915

    SHA1

    6f8667f1ce25cebee2a7b460668736ff6bcfac54

    SHA256

    287f7b4372926ff59bb9a14bdfc00ad63f92af8efdb2e14f6f6baf31878fd44e

    SHA512

    caba0bd0cb0eda0710291f9754cfdef1a3d8fdb8b6d07f5d3e4d1e7b09c87f37032287ddef0a75485d6e685afa3510ee64453662e6c8d223ae171b392b58e493

  • memory/1104-59-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

    Filesize

    8KB

  • memory/1104-60-0x0000000000610000-0x0000000000611000-memory.dmp

    Filesize

    4KB

  • memory/1104-65-0x0000000000611000-0x0000000000612000-memory.dmp

    Filesize

    4KB

  • memory/1756-63-0x0000000000000000-mapping.dmp

  • memory/1792-61-0x0000000000000000-mapping.dmp