Analysis

  • max time kernel
    138s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    18-10-2024 03:01

General

  • Target

    ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232.exe

  • Size

    732KB

  • MD5

    1465433d79bc8b7d788587ed6119da4d

  • SHA1

    39f03590423665166191484ef0c030dc66173d92

  • SHA256

    ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232

  • SHA512

    44b918df538d06ab0492f0779c2d5319197257ba0499c965bd681f0416af0a351f6d97dce086766eedfcd7afafcfde5e33b620833be655fb9e1e9232c7692f11

  • SSDEEP

    12288:iOBK/h58CBLVwHNsy7NnbWIkz4m17dJnQ1kPIi1RveBYT/kR:iOBij8CL4sm2j7dJn1Ii1RWBYu

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

udignost01.ddns.net:2024

79.110.49.176:2024

Mutex

01a61652-cfc8-4cdd-90f8-a8280cbad3f0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    79.110.49.176

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-07-28T11:44:56.682390236Z

  • 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

    2024

  • default_group

    pullout

  • 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

    01a61652-cfc8-4cdd-90f8-a8280cbad3f0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    udignost01.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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 7 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 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232.exe
    "C:\Users\Admin\AppData\Local\Temp\ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2612
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NAytADOHXq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NAytADOHXq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7AAC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232.exe
      "C:\Users\Admin\AppData\Local\Temp\ebab7ddccea1d6b5a5d4e69bf2dccd2684fc00f5955ca5e6bc5bc51833247232.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:1896
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7C80.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2856
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7CBF.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7AAC.tmp

    Filesize

    1KB

    MD5

    c0c74ae09af8ea40950cc72f0f06db17

    SHA1

    b4cda1c0dd328ae0c6e877b749b31e8b9fd897a4

    SHA256

    47abfaa5a22fbe3e9613dab5699726092e8a42bc95342294408d24582fa5a857

    SHA512

    a512d4b9cd33f8dd77628f47c9ddbcf5c4abdc037e58792e024b0b1e60559640ae8de7fe5e91dd69537be51f2002dc8e017506f9cb4ca8e4f9ce1eec9ddd8e46

  • C:\Users\Admin\AppData\Local\Temp\tmp7C80.tmp

    Filesize

    1KB

    MD5

    9e3ff1e83b4ee1075bc949f705a084cd

    SHA1

    65e29c74a4eff21b963b74d1a16881407edd2d76

    SHA256

    215580894fc3516cab021220887a385f618d93d74bca9cdd775e3d13f2d8d1f7

    SHA512

    11f5a47429cbc1788f71c1b1126eb46d653f21778ce1cc0b53a3c66c3b4c98a50ea28f245afa2db1f6f82f7af9356c6b46f557e6f44cd8fffab364f60fcfde4f

  • C:\Users\Admin\AppData\Local\Temp\tmp7CBF.tmp

    Filesize

    1KB

    MD5

    0a24db62cb5b84309c4803346caaa25d

    SHA1

    67660778f61bb44168c33ed3fe56ed86cf9583e8

    SHA256

    38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

    SHA512

    d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\CS8EIBSYGHBP461J0D68.temp

    Filesize

    7KB

    MD5

    75762db6c7b113a5067427542b5ad708

    SHA1

    941dd9354d0ed4551b4c3fdf9e84f55535b58fc5

    SHA256

    673e4ac78e6057d1935e490b491f33bb3132a7891269433c86d9e8cbff13a6b9

    SHA512

    3ae64676a132ddbfb0eaec1904596bad8da7321c79ae3ad9554bc82633fd259d0c7c6b2a8dccaad8a9211e7542fad54d675785747852f1caa607f6e92c86f65a

  • memory/1628-31-0x0000000074200000-0x00000000748EE000-memory.dmp

    Filesize

    6.9MB

  • memory/1628-1-0x0000000000A00000-0x0000000000ABA000-memory.dmp

    Filesize

    744KB

  • memory/1628-2-0x0000000074200000-0x00000000748EE000-memory.dmp

    Filesize

    6.9MB

  • memory/1628-3-0x0000000000550000-0x0000000000562000-memory.dmp

    Filesize

    72KB

  • memory/1628-4-0x000000007420E000-0x000000007420F000-memory.dmp

    Filesize

    4KB

  • memory/1628-5-0x0000000074200000-0x00000000748EE000-memory.dmp

    Filesize

    6.9MB

  • memory/1628-6-0x0000000007F10000-0x0000000007F8A000-memory.dmp

    Filesize

    488KB

  • memory/1628-0-0x000000007420E000-0x000000007420F000-memory.dmp

    Filesize

    4KB

  • memory/1896-30-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-25-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-19-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1896-28-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-29-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1896-39-0x00000000003E0000-0x00000000003EA000-memory.dmp

    Filesize

    40KB

  • memory/1896-40-0x0000000000440000-0x000000000045E000-memory.dmp

    Filesize

    120KB

  • memory/1896-41-0x00000000003F0000-0x00000000003FA000-memory.dmp

    Filesize

    40KB