Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 04:42

General

  • Target

    9a32df235b0a6dd55cce4b65a798830e32110264a8e09d578714c0c7389fe7e1.exe

  • Size

    200KB

  • MD5

    61ec5db80409d7749d56bd52ff4956a5

  • SHA1

    ec2595ed4015194059edc5d48e8546e6dc43b681

  • SHA256

    9a32df235b0a6dd55cce4b65a798830e32110264a8e09d578714c0c7389fe7e1

  • SHA512

    ff95db9e9d925299415cc2e39263970a57cea218aef6b82b75f8fedc6f4031d0bb60442bed17cb432e08d60421e4a1c88a2d75f0c7e1950850e63d0c3a67df3b

  • SSDEEP

    6144:5Pj8O2ObCK3+9DoMFCF4sw6VsLbfKXsKvK1:d+ObCk0DI7SLbfKTvK

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

minecraft64.strangled.net:53896

127.0.0.1:53896

Mutex

19397564-03bf-4f60-841e-8f8b28a62434

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2015-05-23T22:11:40.968339436Z

  • 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

    53896

  • default_group

    Slavemarket

  • 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

    19397564-03bf-4f60-841e-8f8b28a62434

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    minecraft64.strangled.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a32df235b0a6dd55cce4b65a798830e32110264a8e09d578714c0c7389fe7e1.exe
    "C:\Users\Admin\AppData\Local\Temp\9a32df235b0a6dd55cce4b65a798830e32110264a8e09d578714c0c7389fe7e1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\Temp\9a32df235b0a6dd55cce4b65a798830e32110264a8e09d578714c0c7389fe7e1.exe
      "C:\Users\Admin\AppData\Local\Temp\9a32df235b0a6dd55cce4b65a798830e32110264a8e09d578714c0c7389fe7e1.exe"
      2⤵
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7B19.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7B19.tmp

    Filesize

    1KB

    MD5

    00d4b81c60ff84a70a3af7a92b673b8b

    SHA1

    9dc031b2836bc70213bd30e3a8cccda67b8a82a5

    SHA256

    b577ece41e94061d152b7375d36c1f787e8a0497306190c24e2eff5ea803ed3c

    SHA512

    483381632ab06afda1fe69598ae58dcf75ba20f791102bc35fe4678e988ebdbf7a0c26fac52cb04c4d98ba65f5f447477ef49dbe3f2a599b968fda3c2c14d1e7

  • memory/1596-0-0x00000000749E1000-0x00000000749E2000-memory.dmp

    Filesize

    4KB

  • memory/1596-1-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1596-2-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1596-16-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB

  • memory/3048-17-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB

  • memory/3048-13-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3048-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-4-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-18-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB

  • memory/3048-20-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB

  • memory/3048-3-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/3048-24-0x00000000749E0000-0x0000000074F8B000-memory.dmp

    Filesize

    5.7MB