Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 12:20

General

  • Target

    1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe

  • Size

    391KB

  • MD5

    2396b94677199da636e6ef20baaca0f8

  • SHA1

    917c15f792ff7a49413e3e7ad3c6639afb31ea98

  • SHA256

    1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f

  • SHA512

    9c20f07a6a95789607730f47c2155485610bc54fbfef39ebd6680d89aa12c8d33b4ba63ef710abd005cafe5f4861a70b28e21621ed843a4cf1a2ca0214b02c82

  • SSDEEP

    6144:L+YMkhB3l6SfxWXxJWYStfxuUjZquttT80zLE6V1Rc/tosEq2MdJk5gcIQDUWTn2:qzSBVTxWXxpStBjS8E6SFDEqhPk5pYT

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

1116.hopto.org:1116

185.140.53.9:1116

Mutex

909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.140.53.9

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-02-16T08:43:19.524585136Z

  • 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

    1116

  • default_group

    1116

  • 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

    909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    1116.hopto.org

  • 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.

  • Nanocore family
  • 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 5 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 10 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\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
    "C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KuepDBljyJhFlD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3756.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3044
    • C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.exe
      "C:\Users\Admin\AppData\Local\Temp\1e1b36b0fb31e3ddc268c578074db505486f9d60c85b4b1d0a78fcc7993e078f.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:3032
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3C93.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2540
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp422F.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3C93.tmp

    Filesize

    1KB

    MD5

    898b2bc0bf617bbdc7b1323bc2a0a603

    SHA1

    b26ba0b5a7d92456791f249435dec6bfc3d98e57

    SHA256

    4927330c565524f77637e3e9a3f08922cbbc6a9e30d1a496d644d2c619e9d729

    SHA512

    2bd475b21ebcc19290ef49041e5c457b65100fa322379b556322c8facd0d7736fca60ee383094540e849ff18da37c9fe6f2231267167c077518d1fa4b7f57dd3

  • C:\Users\Admin\AppData\Local\Temp\tmp422F.tmp

    Filesize

    1KB

    MD5

    21de6c3a6440d917bdbb4b491191d9b2

    SHA1

    c63c300affe7147910dc4544d2d5f3029bf321a6

    SHA256

    23af17733a3882cdd82a5bbc321d896b2430dc1bb4b4ac034d129cde5027afc4

    SHA512

    dcd1c464ed36593b990e072940ab415804ef8076743015fff4939211e30e436beb7ce6af3072769abe0214f737cedb210d2b45e6e90da20dac54c3945b11575f

  • memory/2044-6-0x0000000004390000-0x00000000043EC000-memory.dmp

    Filesize

    368KB

  • memory/2044-4-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

  • memory/2044-1-0x0000000000890000-0x00000000008F8000-memory.dmp

    Filesize

    416KB

  • memory/2044-5-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2044-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

  • memory/2044-2-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2044-3-0x0000000000270000-0x000000000027A000-memory.dmp

    Filesize

    40KB

  • memory/2044-27-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-24-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-26-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-39-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3032-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3032-35-0x0000000000450000-0x000000000045A000-memory.dmp

    Filesize

    40KB

  • memory/3032-36-0x0000000000460000-0x000000000047E000-memory.dmp

    Filesize

    120KB

  • memory/3032-37-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/3032-38-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-25-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB