Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2022, 23:44

General

  • Target

    798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe

  • Size

    465KB

  • MD5

    6a37314fe92378a49c260a32e766c4da

  • SHA1

    e809f3fa0769e264a549be8e7ea543fd7f96b34e

  • SHA256

    798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

  • SHA512

    f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

  • SSDEEP

    6144:mv5uq+iPU24t23xxeZjcI2oGq3ZQJLeNDyR4E93AUZHxjT2rKWhmG19pK:euq1F4t23axcOJ36eND5HyHd2mWhH+

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

intelligentminds14.mooo.com:53896

127.0.0.1:53896

Mutex

fbbaa79f-9be4-4852-80c0-9049060e7694

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2015-03-08T14:05:55.617633036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    53896

  • default_group

    First clients

  • 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

    fbbaa79f-9be4-4852-80c0-9049060e7694

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    intelligentminds14.mooo.com

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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 2 IoCs

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe
    "C:\Users\Admin\AppData\Local\Temp\798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1392
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Update\Google Update" /XML "C:\Users\Admin\AppData\Local\Temp\aBBBBB.xml"
      2⤵
      • Creates scheduled task(s)
      PID:1524
    • C:\Users\Admin\AppData\Local\Temp\798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe
      "C:\Users\Admin\AppData\Local\Temp\798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1488
    • C:\Users\Admin\AppData\Local\Temp\sql_support.exe
      "C:\Users\Admin\AppData\Local\Temp\sql_support.exe" -woohoo 1488 C:\Users\Admin\AppData\Local\Temp\chrome.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:820
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Update\Google Update" /XML "C:\Users\Admin\AppData\Local\Temp\aUUUUU.xml"
        3⤵
        • Creates scheduled task(s)
        PID:268
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 0 > C:\Users\Admin\AppData\Local\Temp\798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe:Zone.Identifier & exit
      2⤵
      • NTFS ADS
      PID:1628

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26.exe

          Filesize

          465KB

          MD5

          6a37314fe92378a49c260a32e766c4da

          SHA1

          e809f3fa0769e264a549be8e7ea543fd7f96b34e

          SHA256

          798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

          SHA512

          f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

        • C:\Users\Admin\AppData\Local\Temp\aBBBBB.xml

          Filesize

          1KB

          MD5

          2c2b3ac9bdef149809bb454149b7e8df

          SHA1

          3d3fec0a80e3f0ca0e76b9fcff664819341be809

          SHA256

          43a197a9ffa44eccd7b95bf5f06adb7dfa4432396585984fabb65ba0fe5c31ba

          SHA512

          4a94125391b50d83050b15918d84ba704638d6a372ae676d28f62672aa7449a4d69c7113da653ebe7776948c604f11686f57c2c654829e291ccb563abb98e3cc

        • C:\Users\Admin\AppData\Local\Temp\aUUUUU.xml

          Filesize

          1KB

          MD5

          2c2b3ac9bdef149809bb454149b7e8df

          SHA1

          3d3fec0a80e3f0ca0e76b9fcff664819341be809

          SHA256

          43a197a9ffa44eccd7b95bf5f06adb7dfa4432396585984fabb65ba0fe5c31ba

          SHA512

          4a94125391b50d83050b15918d84ba704638d6a372ae676d28f62672aa7449a4d69c7113da653ebe7776948c604f11686f57c2c654829e291ccb563abb98e3cc

        • C:\Users\Admin\AppData\Local\Temp\chrome.exe

          Filesize

          465KB

          MD5

          6a37314fe92378a49c260a32e766c4da

          SHA1

          e809f3fa0769e264a549be8e7ea543fd7f96b34e

          SHA256

          798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

          SHA512

          f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

        • C:\Users\Admin\AppData\Local\Temp\sql_support.exe

          Filesize

          465KB

          MD5

          6a37314fe92378a49c260a32e766c4da

          SHA1

          e809f3fa0769e264a549be8e7ea543fd7f96b34e

          SHA256

          798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

          SHA512

          f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

        • C:\Users\Admin\AppData\Local\Temp\sql_support.exe

          Filesize

          465KB

          MD5

          6a37314fe92378a49c260a32e766c4da

          SHA1

          e809f3fa0769e264a549be8e7ea543fd7f96b34e

          SHA256

          798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

          SHA512

          f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

        • \Users\Admin\AppData\Local\Temp\sql_support.exe

          Filesize

          465KB

          MD5

          6a37314fe92378a49c260a32e766c4da

          SHA1

          e809f3fa0769e264a549be8e7ea543fd7f96b34e

          SHA256

          798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

          SHA512

          f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

        • \Users\Admin\AppData\Local\Temp\sql_support.exe

          Filesize

          465KB

          MD5

          6a37314fe92378a49c260a32e766c4da

          SHA1

          e809f3fa0769e264a549be8e7ea543fd7f96b34e

          SHA256

          798fbe760dd7a5ae98e1749292f5d545042d546e1702213d0c9f74b749be1f26

          SHA512

          f6fc69d6435705a41235b41dbdf0f7525a3284655a2d8080d84dc1428177fcbe006d29290f5ce21b9f6ec53148f9401e02aadb5be2356a16d3dd5ed38da413f5

        • memory/820-84-0x00000000745A0000-0x0000000074B4B000-memory.dmp

          Filesize

          5.7MB

        • memory/820-89-0x00000000745A0000-0x0000000074B4B000-memory.dmp

          Filesize

          5.7MB

        • memory/1392-54-0x0000000075521000-0x0000000075523000-memory.dmp

          Filesize

          8KB

        • memory/1392-58-0x00000000745A0000-0x0000000074B4B000-memory.dmp

          Filesize

          5.7MB

        • memory/1392-55-0x00000000745A0000-0x0000000074B4B000-memory.dmp

          Filesize

          5.7MB

        • memory/1488-59-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-81-0x00000000745A0000-0x0000000074B4B000-memory.dmp

          Filesize

          5.7MB

        • memory/1488-73-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-71-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-67-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-64-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-62-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-60-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1488-88-0x00000000745A0000-0x0000000074B4B000-memory.dmp

          Filesize

          5.7MB