Analysis

  • max time kernel
    138s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2024 01:36

General

  • Target

    91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe

  • Size

    384KB

  • MD5

    27aa8ad8930fa0d076510cfb6573ce74

  • SHA1

    26da6ec9efcd8b95c2d744373532afd12d26bf8f

  • SHA256

    91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d

  • SHA512

    bb1af7c9caf9d05e6bf2ebf3ff8fbada74c0e4fbac04759428da3766110b66a8966081b22c0ffc4dc3a141a0914e552a6fc0a766c037c438546e8d4124f5922f

  • SSDEEP

    6144:6JHf/OboJwboxHcE2Heo6e+qFCKs7cDZGrBKdt7cWZGbpYByPT7lyvIcbSIvF68U:c3VwboxHc8o6epUVKd9cWvByPHly5WIl

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

blackangel.hopto.org:54984

Mutex

f71cda30-fa3d-4402-acaf-cf2c8c816f12

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    blackangel.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-04-20T19:45:18.703376436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • 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

    f71cda30-fa3d-4402-acaf-cf2c8c816f12

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    blackangel.hopto.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.

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 24 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe
    "C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe
      "C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.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
      PID:2424
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1812
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1784
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2076
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {E35396EB-C074-4810-BB38-10E229DF5E85} S-1-5-21-3502430532-24693940-2469786940-1000:PSBQWFYT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
        "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2056
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2928
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1096
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1884
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2904
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
        "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2096
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2028
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2044
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1612
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:320
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      PID:2512
      • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
        "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1056
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:884
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1712
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2200
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\microsoft.exe

    Filesize

    384KB

    MD5

    27aa8ad8930fa0d076510cfb6573ce74

    SHA1

    26da6ec9efcd8b95c2d744373532afd12d26bf8f

    SHA256

    91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d

    SHA512

    bb1af7c9caf9d05e6bf2ebf3ff8fbada74c0e4fbac04759428da3766110b66a8966081b22c0ffc4dc3a141a0914e552a6fc0a766c037c438546e8d4124f5922f

  • memory/1484-52-0x0000000000130000-0x0000000000196000-memory.dmp

    Filesize

    408KB

  • memory/2056-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2096-87-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2096-86-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2096-83-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2320-27-0x00000000749A0000-0x000000007508E000-memory.dmp

    Filesize

    6.9MB

  • memory/2320-1-0x00000000013A0000-0x0000000001406000-memory.dmp

    Filesize

    408KB

  • memory/2320-17-0x00000000749A0000-0x000000007508E000-memory.dmp

    Filesize

    6.9MB

  • memory/2320-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

    Filesize

    4KB

  • memory/2424-35-0x0000000000700000-0x000000000071A000-memory.dmp

    Filesize

    104KB

  • memory/2424-40-0x0000000000E80000-0x0000000000E90000-memory.dmp

    Filesize

    64KB

  • memory/2424-4-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-6-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-29-0x0000000000320000-0x000000000032A000-memory.dmp

    Filesize

    40KB

  • memory/2424-31-0x0000000000630000-0x000000000063A000-memory.dmp

    Filesize

    40KB

  • memory/2424-30-0x0000000000430000-0x000000000044E000-memory.dmp

    Filesize

    120KB

  • memory/2424-34-0x00000000006F0000-0x0000000000702000-memory.dmp

    Filesize

    72KB

  • memory/2424-8-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-36-0x0000000000770000-0x000000000077E000-memory.dmp

    Filesize

    56KB

  • memory/2424-37-0x0000000000930000-0x000000000093E000-memory.dmp

    Filesize

    56KB

  • memory/2424-38-0x0000000000980000-0x000000000098C000-memory.dmp

    Filesize

    48KB

  • memory/2424-39-0x0000000000CC0000-0x0000000000CD4000-memory.dmp

    Filesize

    80KB

  • memory/2424-23-0x00000000749A0000-0x000000007508E000-memory.dmp

    Filesize

    6.9MB

  • memory/2424-41-0x0000000000E90000-0x0000000000EA4000-memory.dmp

    Filesize

    80KB

  • memory/2424-42-0x0000000000EA0000-0x0000000000EAE000-memory.dmp

    Filesize

    56KB

  • memory/2424-43-0x0000000000EF0000-0x0000000000F1E000-memory.dmp

    Filesize

    184KB

  • memory/2424-44-0x0000000001380000-0x0000000001394000-memory.dmp

    Filesize

    80KB

  • memory/2424-13-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-14-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-19-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-72-0x00000000749A0000-0x000000007508E000-memory.dmp

    Filesize

    6.9MB

  • memory/2424-2-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-22-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2424-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2500-74-0x0000000000E40000-0x0000000000EA6000-memory.dmp

    Filesize

    408KB