Analysis

  • max time kernel
    135s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    13-07-2020 12:33

General

  • Target

    App.bin.exe

  • Size

    560KB

  • MD5

    5518020384ceb599dd993c388c21acf3

  • SHA1

    11c3c0a314b76eb980f69c5db4807cc147e3a1d6

  • SHA256

    91b9e5401ca19ff3f45d8c3acce6a793f7cb713bc6920d9c5371197ad6a3b582

  • SHA512

    7767e0edc52c158a1c3aca4c6dfba33bdade555238b238f82c25aa98e21db1cff479aaced3e570419e9767aabdbb10e03eb51debd016b93ba4c681b5432ce001

Malware Config

Signatures

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • NanoCore

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

  • Drops file in Program Files directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Adds Run entry to start application 2 TTPs 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\App.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\App.bin.exe"
    1⤵
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: GetForegroundWindowSpam
    • Adds Run entry to start application
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    PID:1496
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6B4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:388
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "WAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp85A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6B4.tmp

  • C:\Users\Admin\AppData\Local\Temp\tmp85A.tmp

  • memory/388-0-0x0000000000000000-mapping.dmp

  • memory/1636-2-0x0000000000000000-mapping.dmp