Analysis

  • max time kernel
    114s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2022 08:20

General

  • Target

    Requisition order,pdf.exe

  • Size

    1.1MB

  • MD5

    79ff06b1665614b22e360abc6009d70c

  • SHA1

    44f3f56d6b85d64af4e4eaa597a475d02d3a7995

  • SHA256

    421388c575a028ab0f8c6566d28d2211d20dbd8f25120105ca97495335f19bf6

  • SHA512

    0e7b36fb3b76316eb3c1cc6d7fc3d98026a085927cd7365b1f6f243d27aaae706624aa5b2c8262219ace491cb911ee2695cf7708e5435e660f63af0814954be9

  • SSDEEP

    12288:Aq8OHhzXaOETMeMeSj5waWZZi+TsqBpp5haIkwSfeKa9HMIz+dchHarUCNV:MOxXaOETvMDj51WhbB/OebsIzcq6AMV

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

zechlli82.ddns.net:7691

79.134.225.75:7691

Mutex

03806af7-5b83-4483-8918-3b672fe4cd7e

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    79.134.225.75

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-25T11:19:23.034676636Z

  • 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

    7691

  • 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

    03806af7-5b83-4483-8918-3b672fe4cd7e

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    zechlli82.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Requisition order,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Requisition order,pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\AppData\Local\Temp\Requisition order,pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Requisition order,pdf.exe"
      2⤵
        PID:728

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/728-57-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/728-58-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/728-60-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/728-61-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/728-63-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/728-64-0x000000000041E792-mapping.dmp
    • memory/1348-54-0x0000000074F41000-0x0000000074F43000-memory.dmp
      Filesize

      8KB

    • memory/1348-55-0x0000000074610000-0x0000000074BBB000-memory.dmp
      Filesize

      5.7MB

    • memory/1348-56-0x0000000074610000-0x0000000074BBB000-memory.dmp
      Filesize

      5.7MB

    • memory/1348-66-0x0000000074610000-0x0000000074BBB000-memory.dmp
      Filesize

      5.7MB