Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 14:22

General

  • Target

    Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe

  • Size

    381KB

  • MD5

    891820fd2e1bbe5f5f74cd2b77a1f6b9

  • SHA1

    682a00cb848ded94d88e218f222803214a040774

  • SHA256

    0d2e62e016f98d3213e3ac755d335795035b76f6ad9d6b5370df9ca0cced055c

  • SHA512

    545fe42e8191657d7e45db77f58c1e83d9c8839ce07da1c1dcecb8d08056a4ca61ed2ab70e5498e15fb30e95df6b73703bd181a3d0f25040e1004f46a0c8a03c

  • SSDEEP

    6144:wRHGKZMkhBE45nstM7gSD3OqpNsvSUvyvdLkld9Bgxoa4zrfVqAhRLh42ZdzMovS:a2SBHnsWMS3Ns5vyVcdmo9TjpKsQ7Y4

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kamuchehddhgfgf.ddns.net:1187

37.0.10.22:1187

Mutex

9ff0e8a4-a323-4111-bc49-0daecb63120d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    37.0.10.22

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-17T00:05:39.048278936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1187

  • 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

    9ff0e8a4-a323-4111-bc49-0daecb63120d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kamuchehddhgfgf.ddns.net

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe
    "C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe
      "C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe"
      2⤵
        PID:2564
      • C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe
        "C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe"
        2⤵
          PID:2568
        • C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).exe
          "C:\Users\Admin\AppData\Local\Temp\Circular PSSB Parts Disc Credit Term (Dlr) Oct2021 (1).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
          PID:2684

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2420-20-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2420-1-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2420-0-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2420-3-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2420-4-0x0000000000670000-0x00000000006B0000-memory.dmp
        Filesize

        256KB

      • memory/2420-2-0x0000000000670000-0x00000000006B0000-memory.dmp
        Filesize

        256KB

      • memory/2684-27-0x0000000002110000-0x0000000002150000-memory.dmp
        Filesize

        256KB

      • memory/2684-9-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-7-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-5-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-17-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-15-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-11-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-19-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2684-22-0x0000000002110000-0x0000000002150000-memory.dmp
        Filesize

        256KB

      • memory/2684-21-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2684-23-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2684-26-0x0000000074800000-0x0000000074DAB000-memory.dmp
        Filesize

        5.7MB

      • memory/2684-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB