Analysis

  • max time kernel
    190s
  • max time network
    197s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 23:10

General

  • Target

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0.exe

  • Size

    306KB

  • MD5

    96e1a7ce16e8c0883c092dc085ade0ee

  • SHA1

    83a790b2a645deb4566901f57a98c465685e972d

  • SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

  • SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • SSDEEP

    6144:M3t3X7cmgQNegW+Hw8jGSA3FPFpX9eCSWAqXr2WQfXr61muU:sX7cmvWqsFDeCSWpB

Malware Config

Extracted

Family

nanocore

Version

1.2.1.1

C2

103.25.58.220:72

Mutex

a12f511d-4b09-4b1c-bce0-1f3be91c147f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2014-10-22T21:36:34.307109236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    72

  • default_group

    Testers

  • 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

    a12f511d-4b09-4b1c-bce0-1f3be91c147f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    103.25.58.220

  • primary_dns_server

  • 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

    1.2.1.1

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Executes dropped EXE 11 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0.exe
    "C:\Users\Admin\AppData\Local\Temp\6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Users\Admin\AppData\Local\Temp\6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0.exe
      "C:\Users\Admin\AppData\Local\Temp\6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:5092
    • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1516
      • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:60
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:3152
        • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          PID:2000
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:5072
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:3280
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:3024
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:4760
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:4960
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:4656
        • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
          4⤵
          • Executes dropped EXE
          PID:3464

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\LookupSvi.exe.log
    Filesize

    128B

    MD5

    a5dcc7c9c08af7dddd82be5b036a4416

    SHA1

    4f998ca1526d199e355ffb435bae111a2779b994

    SHA256

    e24033ceec97fd03402b03acaaabd1d1e378e83bb1683afbccac760e00f8ead5

    SHA512

    56035de734836c0c39f0b48641c51c26adb6e79c6c65e23ca96603f71c95b8673e2ef853146e87efc899dd1878d0bbc2c82d91fbf0fce81c552048e986f9bb5a

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\secdrv.exe.log
    Filesize

    496B

    MD5

    5b4789d01bb4d7483b71e1a35bce6a8b

    SHA1

    de083f2131c9a763c0d1810c97a38732146cffbf

    SHA256

    e248cef9500ed6e0c9f99d72a2a6a36955a5f0cfc0725748ef25a733cc8282f6

    SHA512

    357e18ef30430e4b9cc4f2569b9735b1cd12f934c83162e4de78ac29ba9703b63ddb624ccc22afd5a5868f6e9d91a3c64581846abac22e9625f5b2e3d80b3ede

  • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
    Filesize

    13KB

    MD5

    cf7e259dd0225ae86a29f5952bcb5b4d

    SHA1

    4c6b2363a754bcaa07edeee5b4837b464cfb5d5c

    SHA256

    bcf654651c834ff5f885a6ab272d000aa48acea1ebe68ce146c68c863c4736a8

    SHA512

    91c469f7b4d3c95177ccb013e3c16fe61fffa1fd631857f44bb335382b6c0c80d8bb178e72140178716312f49efbee45ccbe3467a01099561ab3ddf33b412b3a

  • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
    Filesize

    13KB

    MD5

    cf7e259dd0225ae86a29f5952bcb5b4d

    SHA1

    4c6b2363a754bcaa07edeee5b4837b464cfb5d5c

    SHA256

    bcf654651c834ff5f885a6ab272d000aa48acea1ebe68ce146c68c863c4736a8

    SHA512

    91c469f7b4d3c95177ccb013e3c16fe61fffa1fd631857f44bb335382b6c0c80d8bb178e72140178716312f49efbee45ccbe3467a01099561ab3ddf33b412b3a

  • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
    Filesize

    13KB

    MD5

    cf7e259dd0225ae86a29f5952bcb5b4d

    SHA1

    4c6b2363a754bcaa07edeee5b4837b464cfb5d5c

    SHA256

    bcf654651c834ff5f885a6ab272d000aa48acea1ebe68ce146c68c863c4736a8

    SHA512

    91c469f7b4d3c95177ccb013e3c16fe61fffa1fd631857f44bb335382b6c0c80d8bb178e72140178716312f49efbee45ccbe3467a01099561ab3ddf33b412b3a

  • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
    Filesize

    13KB

    MD5

    cf7e259dd0225ae86a29f5952bcb5b4d

    SHA1

    4c6b2363a754bcaa07edeee5b4837b464cfb5d5c

    SHA256

    bcf654651c834ff5f885a6ab272d000aa48acea1ebe68ce146c68c863c4736a8

    SHA512

    91c469f7b4d3c95177ccb013e3c16fe61fffa1fd631857f44bb335382b6c0c80d8bb178e72140178716312f49efbee45ccbe3467a01099561ab3ddf33b412b3a

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
    Filesize

    306KB

    MD5

    96e1a7ce16e8c0883c092dc085ade0ee

    SHA1

    83a790b2a645deb4566901f57a98c465685e972d

    SHA256

    6819b6f91d5942adfec4eaab33ed2d468a050dc91274c210545ec57aa9aae2e0

    SHA512

    20aa66eb2883691be1d3bf94c5b63482b2d9c8fe8427cc2d8c58ca4833d26e0c3ab3068d6f059159a8db3c0ab92cd46e7ad7864a5865fcb51bff1c7285d0bd61

  • memory/60-147-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/60-144-0x0000000000000000-mapping.dmp
  • memory/60-146-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/1072-132-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/1072-133-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/1072-148-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/1516-142-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/1516-137-0x0000000000000000-mapping.dmp
  • memory/1516-140-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/1516-149-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/2000-158-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/2000-153-0x0000000000000000-mapping.dmp
  • memory/2000-165-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3024-176-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3024-172-0x0000000000000000-mapping.dmp
  • memory/3024-175-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3152-151-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/3152-159-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3152-157-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3152-150-0x0000000000000000-mapping.dmp
  • memory/3280-170-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3280-167-0x0000000000000000-mapping.dmp
  • memory/3280-171-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3464-195-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/3464-192-0x0000000000000000-mapping.dmp
  • memory/4656-187-0x0000000000000000-mapping.dmp
  • memory/4656-191-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/4656-190-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/4760-177-0x0000000000000000-mapping.dmp
  • memory/4760-181-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/4760-180-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/4960-182-0x0000000000000000-mapping.dmp
  • memory/4960-185-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/4960-186-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/5072-164-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/5072-166-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/5072-160-0x0000000000000000-mapping.dmp
  • memory/5092-136-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB

  • memory/5092-134-0x0000000000000000-mapping.dmp
  • memory/5092-141-0x0000000074D60000-0x0000000075311000-memory.dmp
    Filesize

    5.7MB