Analysis

  • max time kernel
    89s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19-10-2022 06:41

General

  • Target

    RQF-PONqwnU793jFKhCYJxls.scr.exe

  • Size

    865KB

  • MD5

    59452c1b615b1203869974cab888a34a

  • SHA1

    10764daeca838d1d48b7a4b65e4d6ef3f886b82e

  • SHA256

    93dc450725fdc803bb3d1e0cfdb20f796278364ecaac9c3b1a3df0c1ea7ba463

  • SHA512

    ac5b8431585564db925bb920a520c7fff23069f7660b417903e890c3ec0f38d4f83db3bd1168d8cfd2994f7a256ec722c029c2ce3bc5b0cd5e2d907fc8fbbd3b

  • SSDEEP

    12288:6awU+FWeNS+Cvulaw8yQwDYhXllljVlsLpem5e5b/CuCnm:bmSP+a1lljV0BeVCzm

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

power22.myftp.org:3546

Mutex

55861d8e-ed1a-4742-a20e-20f81af81b14

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    power22.myftp.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-16T01:02:04.786212036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3546

  • default_group

    Good$$

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    55861d8e-ed1a-4742-a20e-20f81af81b14

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    power22.myftp.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 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 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NCPSEJKzgAQLm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1464
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NCPSEJKzgAQLm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC36.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1212
    • C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe"
      2⤵
        PID:588
      • C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\RQF-PONqwnU793jFKhCYJxls.scr.exe"
        2⤵
        • 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:1744
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "AGP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCFDE.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:700
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "AGP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD09A.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1092

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpCC36.tmp

      Filesize

      1KB

      MD5

      f43fe4aa2578cc96fb655b41ccc1908c

      SHA1

      9cf57433f0852605d72236dbb907cb74d806e110

      SHA256

      e3bcbf4d487e11b6af6baad6145377037daeb69add64545461c4a5e8dcfc1655

      SHA512

      b58e5ca73a86f4011e387ecfa45422bd5bd4859349843afe760ec6c28d2fb0d84eceb5fb49b165b23dd15176bb02fc3a324643d8d077058b60190b3efc28a902

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

      Filesize

      1KB

      MD5

      b23374d8eaf170770e788a55bda37a6e

      SHA1

      a19288f840e73faa6047813e4a26816370506330

      SHA256

      0c537054bdc093f10800d03bc51db1543f7f669c9a69d52cc4638de06b0172a4

      SHA512

      bf96df8f19be47b239698bbf1271bd695ea86e6e019561d17030d1dc6dff43e1fa9ba82e07781b460c0a8b4f47daff82393ae8c87118c9095b1dbec70312602e

    • C:\Users\Admin\AppData\Local\Temp\tmpD09A.tmp

      Filesize

      1KB

      MD5

      885d6dd30570594e167fadb59d9ca0ea

      SHA1

      9981e583644c4eb9cf5056615a0e1c2913c8983b

      SHA256

      7155bc082d1713d77c2797575ee0ade8467fb7012f5376c1d6f4aa618141a7d2

      SHA512

      1623218143c2c25a7c85fa9da8e0f251f04a5eb848c4d0aa10bfb78688518b82393a2b3c7f287a9dc06a366ef9f46d0d4e2d246ad4cef4554a74c0bb6ff9dd2a

    • memory/700-78-0x0000000000000000-mapping.dmp

    • memory/1092-80-0x0000000000000000-mapping.dmp

    • memory/1200-64-0x0000000005D70000-0x0000000005DB0000-memory.dmp

      Filesize

      256KB

    • memory/1200-58-0x00000000005B0000-0x00000000005BC000-memory.dmp

      Filesize

      48KB

    • memory/1200-59-0x00000000005D0000-0x000000000066C000-memory.dmp

      Filesize

      624KB

    • memory/1200-54-0x00000000010A0000-0x000000000117E000-memory.dmp

      Filesize

      888KB

    • memory/1200-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

      Filesize

      8KB

    • memory/1200-56-0x0000000005AA0000-0x0000000005B84000-memory.dmp

      Filesize

      912KB

    • memory/1200-57-0x0000000000AC0000-0x0000000000AD8000-memory.dmp

      Filesize

      96KB

    • memory/1212-61-0x0000000000000000-mapping.dmp

    • memory/1464-98-0x000000006EC50000-0x000000006F1FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1464-85-0x000000006EC50000-0x000000006F1FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1464-60-0x0000000000000000-mapping.dmp

    • memory/1744-82-0x0000000000230000-0x000000000023A000-memory.dmp

      Filesize

      40KB

    • memory/1744-86-0x0000000000390000-0x00000000003A2000-memory.dmp

      Filesize

      72KB

    • memory/1744-74-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1744-72-0x000000000041E792-mapping.dmp

    • memory/1744-71-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1744-69-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1744-68-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1744-83-0x0000000000250000-0x000000000026E000-memory.dmp

      Filesize

      120KB

    • memory/1744-84-0x0000000000240000-0x000000000024A000-memory.dmp

      Filesize

      40KB

    • memory/1744-66-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1744-87-0x00000000003A0000-0x00000000003BA000-memory.dmp

      Filesize

      104KB

    • memory/1744-76-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1744-88-0x00000000004F0000-0x00000000004FE000-memory.dmp

      Filesize

      56KB

    • memory/1744-89-0x0000000000500000-0x0000000000512000-memory.dmp

      Filesize

      72KB

    • memory/1744-90-0x0000000000520000-0x000000000052E000-memory.dmp

      Filesize

      56KB

    • memory/1744-92-0x0000000000690000-0x00000000006A4000-memory.dmp

      Filesize

      80KB

    • memory/1744-91-0x0000000000600000-0x000000000060C000-memory.dmp

      Filesize

      48KB

    • memory/1744-93-0x00000000006A0000-0x00000000006B0000-memory.dmp

      Filesize

      64KB

    • memory/1744-94-0x00000000007B0000-0x00000000007C4000-memory.dmp

      Filesize

      80KB

    • memory/1744-95-0x00000000007C0000-0x00000000007CE000-memory.dmp

      Filesize

      56KB

    • memory/1744-97-0x00000000007E0000-0x00000000007F4000-memory.dmp

      Filesize

      80KB

    • memory/1744-96-0x0000000000830000-0x000000000085E000-memory.dmp

      Filesize

      184KB

    • memory/1744-65-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB