Analysis

  • max time kernel
    115s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 21:52

General

  • Target

    2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28.exe

  • Size

    503KB

  • MD5

    2d43dd5a629f5b5ced165a6957fa7a20

  • SHA1

    4326924c72002a52b073789dc647bc5d65edfc07

  • SHA256

    2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28

  • SHA512

    eec014d7069cd6edcc90d60df742f7961dca0a65f15d0c18f310754df7e21e018707220130ecd3d65cefc5084872391bdff6b32d9d09c9ad74652be513e160fb

  • SSDEEP

    12288:eVGgMOAslYbn5vK2w7CeEBOB8tfjHmdqC:btslYbN2Ebt7HmdqC

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

212.192.241.19:9530

Mutex

0e53723b-45a2-4610-9e0f-bcbf71098cb0

Attributes
  • activate_away_mode

    false

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-26T03:05:48.681858136Z

  • 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

    9530

  • default_group

    Saint

  • 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

    0e53723b-45a2-4610-9e0f-bcbf71098cb0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    212.192.241.19

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • 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.

  • Nanocore family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 6 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 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28.exe
    "C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2644
    • 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\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2608
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qvSCyEhVKRwxif" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB18.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2296
    • C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28.exe
      "C:\Users\Admin\AppData\Local\Temp\2b144301023e2f55c3915df73f0de30a7bb309e97ef1a073b59e339b381dcf28.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:1692
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD0B.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2840
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD89.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD0B.tmp

    Filesize

    1KB

    MD5

    e495f3cb0c979cd94680b65d9b2ebc67

    SHA1

    419c6cb816fe8488f944f25720aef83d062098f7

    SHA256

    c0daa0dc7230aa20bf0bf224cb2e21c3654a5694ce31423590b2eb612aef7dcb

    SHA512

    edd41fa564a32db23f2cb8280e35e62f0739a5fb7c3528a8c5020624eede4d15e53656c276e22952e880d1c6a669640bb5766208be1b9f7d27e98ddf087dfffb

  • C:\Users\Admin\AppData\Local\Temp\tmpD89.tmp

    Filesize

    1KB

    MD5

    da7aec92f4b1e721f6eeccec52db4901

    SHA1

    e1bc32c2277c42aec2356f6242ee427af53c2a52

    SHA256

    7bcfd205f07bffa61c788644c1d6639d03126c46fdbd6550f7e21795dc78b3c0

    SHA512

    340e234cdfb1b327369378131629f0ff5538c6a1c578c59bfc1b66442ff3f5793f119db13b8d3f158969071eb0fc0c7fbe5c79094572fac0cea528489bf11720

  • memory/1692-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-36-0x00000000003E0000-0x00000000003EA000-memory.dmp

    Filesize

    40KB

  • memory/1692-37-0x00000000005E0000-0x00000000005FE000-memory.dmp

    Filesize

    120KB

  • memory/1692-38-0x00000000003F0000-0x00000000003FA000-memory.dmp

    Filesize

    40KB

  • memory/1692-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-25-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1692-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2644-5-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2644-6-0x0000000001200000-0x000000000125C000-memory.dmp

    Filesize

    368KB

  • memory/2644-28-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2644-0-0x00000000741CE000-0x00000000741CF000-memory.dmp

    Filesize

    4KB

  • memory/2644-4-0x00000000741CE000-0x00000000741CF000-memory.dmp

    Filesize

    4KB

  • memory/2644-3-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2644-2-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2644-1-0x00000000012E0000-0x0000000001364000-memory.dmp

    Filesize

    528KB