Analysis

  • max time kernel
    99s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    10-09-2022 11:38

General

  • Target

    3d457167f86043799d614d329e920d52.exe

  • Size

    1.1MB

  • MD5

    3d457167f86043799d614d329e920d52

  • SHA1

    4d0e4f23e72eb86d13a916f38f4b2ad32eee6e8d

  • SHA256

    2fa20b91c8210ffe9a8f44e26514ae4363d8ae1ec7a638c8e2ce9559be246b4b

  • SHA512

    3677083a41dcf195d5d8872e19784c166b7c927e4874097f4d0de548d21b2fef5206f55f57f99ad4909e7ddd5f1af7cf605c9f6594532eaaa73aa5f65ea1df05

  • SSDEEP

    12288:/kNjmFjxPqh0FzF+gHoaOO1REdHPPrhWIGAsxp2/K/jxxRuBbGkDU8qg5Bg2cj:/kxm1Bw0xAg0O1KxcLAXmbRTkDPQ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

tzitziklishop.ddns.net:1665

Mutex

1353b0ad-2499-432f-9b11-0b34111cc177

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    tzitziklishop.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-06-10T06:52:34.128947636Z

  • 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

    1665

  • default_group

    August

  • 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

    1353b0ad-2499-432f-9b11-0b34111cc177

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    tzitziklishop.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.

  • 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
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d457167f86043799d614d329e920d52.exe
    "C:\Users\Admin\AppData\Local\Temp\3d457167f86043799d614d329e920d52.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Users\Admin\AppData\Local\Temp\3d457167f86043799d614d329e920d52.exe
      "C:\Users\Admin\AppData\Local\Temp\3d457167f86043799d614d329e920d52.exe"
      2⤵
        PID:108
      • C:\Users\Admin\AppData\Local\Temp\3d457167f86043799d614d329e920d52.exe
        "C:\Users\Admin\AppData\Local\Temp\3d457167f86043799d614d329e920d52.exe"
        2⤵
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:952
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3CA4.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1704
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3EC7.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1812

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3CA4.tmp

      Filesize

      1KB

      MD5

      c21aebdc94a9e1c6f716e3a9428ebd3d

      SHA1

      28feaf98fe90e1ebdadbb8a53e54251920903dd1

      SHA256

      54596567c791a1499d8154abd4bf26f098af3f9498a0617ce312b847e861dee9

      SHA512

      84431f7025f50b1c33cf6828082db2bec94165307ae43c7bb0a0d5463a68f2b88150f37487b31fc09465beef28b9df24fead763a24abaf01da011bd3dd8478df

    • C:\Users\Admin\AppData\Local\Temp\tmp3EC7.tmp

      Filesize

      1KB

      MD5

      0a24db62cb5b84309c4803346caaa25d

      SHA1

      67660778f61bb44168c33ed3fe56ed86cf9583e8

      SHA256

      38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

      SHA512

      d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

    • memory/952-83-0x0000000004610000-0x0000000004622000-memory.dmp

      Filesize

      72KB

    • memory/952-91-0x0000000004810000-0x0000000004824000-memory.dmp

      Filesize

      80KB

    • memory/952-90-0x0000000004C20000-0x0000000004C4E000-memory.dmp

      Filesize

      184KB

    • memory/952-89-0x00000000047B0000-0x00000000047BE000-memory.dmp

      Filesize

      56KB

    • memory/952-60-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-61-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-63-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-64-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-66-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-67-0x000000000041E792-mapping.dmp

    • memory/952-69-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-71-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/952-88-0x00000000047A0000-0x00000000047B4000-memory.dmp

      Filesize

      80KB

    • memory/952-87-0x0000000004790000-0x00000000047A0000-memory.dmp

      Filesize

      64KB

    • memory/952-86-0x0000000004680000-0x0000000004694000-memory.dmp

      Filesize

      80KB

    • memory/952-77-0x0000000000990000-0x000000000099A000-memory.dmp

      Filesize

      40KB

    • memory/952-85-0x0000000004670000-0x000000000467E000-memory.dmp

      Filesize

      56KB

    • memory/952-78-0x0000000000A80000-0x0000000000A9E000-memory.dmp

      Filesize

      120KB

    • memory/952-79-0x00000000009A0000-0x00000000009AA000-memory.dmp

      Filesize

      40KB

    • memory/952-80-0x0000000000B70000-0x0000000000B82000-memory.dmp

      Filesize

      72KB

    • memory/952-81-0x0000000000C80000-0x0000000000C9A000-memory.dmp

      Filesize

      104KB

    • memory/952-82-0x00000000045F0000-0x00000000045FE000-memory.dmp

      Filesize

      56KB

    • memory/952-84-0x0000000004660000-0x000000000466C000-memory.dmp

      Filesize

      48KB

    • memory/1408-54-0x0000000000DF0000-0x0000000000F14000-memory.dmp

      Filesize

      1.1MB

    • memory/1408-57-0x0000000000430000-0x000000000043C000-memory.dmp

      Filesize

      48KB

    • memory/1408-58-0x0000000005F70000-0x000000000601A000-memory.dmp

      Filesize

      680KB

    • memory/1408-56-0x0000000000340000-0x000000000035A000-memory.dmp

      Filesize

      104KB

    • memory/1408-59-0x0000000000CC0000-0x0000000000D10000-memory.dmp

      Filesize

      320KB

    • memory/1408-55-0x00000000750A1000-0x00000000750A3000-memory.dmp

      Filesize

      8KB

    • memory/1704-73-0x0000000000000000-mapping.dmp

    • memory/1812-75-0x0000000000000000-mapping.dmp