Overview

overview

10

Static

static

3

0473350311...df.exe

windows7-x64

10

0473350311...df.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/07/2023, 06:28

Sharing

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General

  • Target
    0473350311911207E·pdf.exe
  • Size 1.0MB
  • Sample230712-g8clmacb96
  • SHA256 cf1bc0e51ec2afbec5cffa1cf38e5ddcb6f9ce3aec8b737a55c8700600aa8caa
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
nanocorekeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • wqqkgzmrdwxl8j.duckdns.org:23591

Mutex

  • f6afab64-873f-4d56-b17f-ef348c8e338e

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    wqqkgzmrdwxl8j.duckdns.org

  • buffer_size

    65535

  • build_time

    2023-04-14T14:06:46.875087636Z

  • 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

    23591

  • 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

    f6afab64-873f-4d56-b17f-ef348c8e338e

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    wqqkgzmrdwxl8j.duckdns.org

  • primary_dns_server

    wqqkgzmrdwxl8j.duckdns.org

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3172
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
      "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
      2⤵
        PID:4800
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
        "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
        2⤵
          PID:4832
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
          "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
          2⤵
            PID:1116
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
            "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
            2⤵
              PID:2632
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
              "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
              2⤵
                PID:4320
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe
                "C:\Users\Admin\AppData\Local\Temp\0473350311911207E·pdf.exe"
                2⤵
                • Checks QEMU agent file
                • Adds Run key to start application
                • Suspicious use of NtCreateThreadExHideFromDebugger
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Drops file in Program Files directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:3092
                • C:\Windows\SysWOW64\schtasks.exe
                  "schtasks.exe" /create /f /tn "SCSI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3A06.tmp"
                  3⤵
                  • Creates scheduled task(s)
                  PID:1716
                • C:\Windows\SysWOW64\schtasks.exe
                  "schtasks.exe" /create /f /tn "SCSI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3BBD.tmp"
                  3⤵
                  • Creates scheduled task(s)
                  PID:3380

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  System.dll
                  • Path C:\Users\Admin\AppData\Local\Temp\nsm71E6.tmp\System.dll
                  • Size 11KB
                  • SHA256 a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
                  • MD5 SHA1 SHA512 SSDEEP
                  Submit Download

                  tmp3A06.tmp
                  • Path C:\Users\Admin\AppData\Local\Temp\tmp3A06.tmp
                  • Size 1KB
                  • SHA256 3462cbe62fbb64fc53a0fcf97e43baafe9dd9929204f586a86afe4b89d8048a6
                  • MD5 SHA1 SHA512
                  Submit Download

                  tmp3BBD.tmp
                  • Path C:\Users\Admin\AppData\Local\Temp\tmp3BBD.tmp
                  • Size 1KB
                  • SHA256 d4ba6219d0aff5a36d129a8475cf35b00043d205f751f63ddd56a5c7d4a03ff3
                  • MD5 SHA1 SHA512
                  Submit Download

                  memory/3092-147-0x0000000000400000-0x000000000062B000-memory.dmp
                  Download

                  memory/3092-160-0x0000000000400000-0x000000000062B000-memory.dmp
                  Download

                  memory/3092-162-0x0000000000B00000-0x0000000003F8D000-memory.dmp
                  Download

                  memory/3092-163-0x0000000034E60000-0x0000000034E70000-memory.dmp
                  Download

                  memory/3092-172-0x0000000034E60000-0x0000000034E70000-memory.dmp
                  Download

                  memory/3092-177-0x0000000034E60000-0x0000000034E70000-memory.dmp
                  Download