Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 05:43

General

  • Target

    f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe

  • Size

    681KB

  • MD5

    b1d986e9c155fd11d3a1d2e01c9783cd

  • SHA1

    7f1b1be16e8eab4573e7828611a54f69c59d1f22

  • SHA256

    f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b

  • SHA512

    e7f22f880c6ae38c23b2ed0852fbe06f2d6e26f63d4c4b05c77aad88105d4794f5ea66c5926fd1989e97c83b464725d0d16df158deb6b9395db8ab6aabea7a84

  • SSDEEP

    12288:jrmtiK5oBG9q9jEbCREZ+gKfvuZIOIy20soND6jM4ZZFDkhQwC:jr+FoBG8eKfWWusoFSZZFD

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kengroup.publicvm.com:5577

Mutex

2d946f88-95e7-4ef9-bf22-b17b601a3a0a

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-02T11:12:00.603845836Z

  • 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

    5577

  • default_group

    Default

  • 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

    2d946f88-95e7-4ef9-bf22-b17b601a3a0a

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kengroup.publicvm.com

  • 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.

  • Nanocore family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe
    "C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uWyhyrvNHzsdDV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7EDF.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3412
    • C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe
      "C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe"
      2⤵
        PID:180
      • C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe
        "C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe"
        2⤵
          PID:3696
        • C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe
          "C:\Users\Admin\AppData\Local\Temp\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe"
          2⤵
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1696
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "SCSI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp83D1.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1568
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "SCSI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8420.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3496

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f0d060dc131d75a89792d7ac291b26350d9515c5f5ecbf8c9149a22a8c81111b.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • C:\Users\Admin\AppData\Local\Temp\tmp83D1.tmp

        Filesize

        1KB

        MD5

        9f6194f08eb2ffd977d9ef9b5a2e9e59

        SHA1

        cf08a32c622093cdccc20e00a5604f3f6cfa79b1

        SHA256

        a0b56f02b152ed9efb4b549007062cb1813eca3da4e6411dac6af470e578dc25

        SHA512

        936d8ef644daf981b5e7b6eeee3e77e9302de457c1b6c3d7e007488602e7c77593bd6445507e8b8f01aa840142253d18bfd18e97e5b599d2f5458839335bb736

      • C:\Users\Admin\AppData\Local\Temp\tmp8420.tmp

        Filesize

        1KB

        MD5

        2862e61d09852ea2886c036af0465051

        SHA1

        45e30b14543868213f7f1cba0a1e0cc840fb2cd2

        SHA256

        d4ba6219d0aff5a36d129a8475cf35b00043d205f751f63ddd56a5c7d4a03ff3

        SHA512

        33dfd9d12adaa19dd3d4dd7013930e233dd3ff1d114e1e86e50d20ffa848a27582eebdffc09ab974b8de86316c01da6f6254f349992ad507d0f8b13cf0e36579

      • memory/1696-17-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/1696-30-0x00000000051F0000-0x00000000051FA000-memory.dmp

        Filesize

        40KB

      • memory/1696-34-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB

      • memory/1696-33-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB

      • memory/1696-32-0x0000000006370000-0x000000000637A000-memory.dmp

        Filesize

        40KB

      • memory/1696-31-0x0000000006250000-0x000000000626E000-memory.dmp

        Filesize

        120KB

      • memory/1696-22-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB

      • memory/1696-20-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB

      • memory/4052-2-0x0000000005460000-0x0000000005A04000-memory.dmp

        Filesize

        5.6MB

      • memory/4052-0-0x000000007480E000-0x000000007480F000-memory.dmp

        Filesize

        4KB

      • memory/4052-3-0x0000000004DF0000-0x0000000004E82000-memory.dmp

        Filesize

        584KB

      • memory/4052-10-0x0000000005E10000-0x0000000005E94000-memory.dmp

        Filesize

        528KB

      • memory/4052-21-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB

      • memory/4052-9-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB

      • memory/4052-11-0x0000000005E90000-0x0000000005EE0000-memory.dmp

        Filesize

        320KB

      • memory/4052-1-0x0000000000370000-0x0000000000420000-memory.dmp

        Filesize

        704KB

      • memory/4052-4-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

        Filesize

        40KB

      • memory/4052-8-0x000000007480E000-0x000000007480F000-memory.dmp

        Filesize

        4KB

      • memory/4052-7-0x0000000004F80000-0x0000000004FA2000-memory.dmp

        Filesize

        136KB

      • memory/4052-6-0x0000000005160000-0x00000000051FC000-memory.dmp

        Filesize

        624KB

      • memory/4052-5-0x0000000074800000-0x0000000074FB0000-memory.dmp

        Filesize

        7.7MB