Analysis

  • max time kernel
    271s
  • max time network
    300s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 22:37

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 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 36 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 6 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:1744
    • 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:2968
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2864
    • 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:2940
      • 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:2768
    • 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:3068
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {01893FF5-E8D4-4E74-8B90-71F125C8C765} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2428
    • 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:1108
      • 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:2972
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2116
      • 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:2040
        • 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:2252
      • 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:2476
    • 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:1228
      • 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:1644
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2556
      • 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:2232
        • 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:1284
      • 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:1432
    • 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:1320
      • 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:1660
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2488
      • 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:1832
        • 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:2752
      • 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:2800
    • 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:1848
      • 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:2672
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1168
      • 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:2996
        • 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:3044
      • 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:2696
    • 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:1728
      • 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:2184
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1652
      • 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:1684
        • 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:2288
      • 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:2064

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/1108-41-0x0000000000150000-0x00000000001B6000-memory.dmp

    Filesize

    408KB

  • memory/1228-67-0x0000000000820000-0x0000000000886000-memory.dmp

    Filesize

    408KB

  • memory/1320-82-0x0000000001060000-0x00000000010C6000-memory.dmp

    Filesize

    408KB

  • memory/1644-76-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1660-91-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1744-0-0x000000007427E000-0x000000007427F000-memory.dmp

    Filesize

    4KB

  • memory/1744-1-0x0000000001220000-0x0000000001286000-memory.dmp

    Filesize

    408KB

  • memory/1744-2-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/1744-23-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2968-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2968-34-0x0000000004D50000-0x0000000004D60000-memory.dmp

    Filesize

    64KB

  • memory/2968-15-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2968-18-0x0000000000A60000-0x0000000000A6A000-memory.dmp

    Filesize

    40KB

  • memory/2968-19-0x0000000000B50000-0x0000000000B6E000-memory.dmp

    Filesize

    120KB

  • memory/2968-20-0x0000000000AB0000-0x0000000000ABA000-memory.dmp

    Filesize

    40KB

  • memory/2968-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2968-25-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2968-26-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2968-28-0x0000000000BC0000-0x0000000000BD2000-memory.dmp

    Filesize

    72KB

  • memory/2968-29-0x0000000004710000-0x000000000472A000-memory.dmp

    Filesize

    104KB

  • memory/2968-30-0x0000000000D20000-0x0000000000D2E000-memory.dmp

    Filesize

    56KB

  • memory/2968-31-0x00000000047C0000-0x00000000047CE000-memory.dmp

    Filesize

    56KB

  • memory/2968-33-0x0000000004D40000-0x0000000004D54000-memory.dmp

    Filesize

    80KB

  • memory/2968-32-0x0000000004810000-0x000000000481C000-memory.dmp

    Filesize

    48KB

  • memory/2968-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2968-35-0x0000000004EA0000-0x0000000004EB4000-memory.dmp

    Filesize

    80KB

  • memory/2968-36-0x00000000052D0000-0x00000000052DE000-memory.dmp

    Filesize

    56KB

  • memory/2968-37-0x00000000052E0000-0x000000000530E000-memory.dmp

    Filesize

    184KB

  • memory/2968-38-0x0000000005320000-0x0000000005334000-memory.dmp

    Filesize

    80KB

  • memory/2968-14-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2968-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2968-3-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2968-4-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2968-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2968-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2972-57-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2972-60-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2972-53-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2972-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB