Analysis

  • max time kernel
    117s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    30-04-2024 01:00

General

  • Target

    0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe

  • Size

    630KB

  • MD5

    55abd8961bb1559aacdd14bc4abe2948

  • SHA1

    cff001eea9b43d712fbcc4cf9fb9b136f8c4109d

  • SHA256

    0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6

  • SHA512

    e5a6e38bc943c2b6fe7c157f3e719303c7b216edf3d483dd7c2b7a4267dd3d0d6b500015ef96d3c041e2032e6aabec6787bebb6f4af3f2070d9cb9fa8d2b4c2b

  • SSDEEP

    12288:KjB778QTJ4oNyNN1N84trNRngS5B2/JD3CJMJjEebEPs18VT1IMajPsWj6Mr:UBlJ4tNXN84NgSUtCW1EeAaihaDsWj6Q

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

december2nd.ddns.net:64418

december2n.duckdns.org:64418

Mutex

a73ea09a-fffa-47fc-8cf2-8699258828eb

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    december2n.duckdns.org

  • backup_dns_server

  • buffer_size

    65538

  • build_time

    2024-02-03T01:52:12.147368736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    64418

  • default_group

    NO GREE

  • enable_debug_mode

    true

  • gc_threshold

    1.0485772e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.0485772e+07

  • mutex

    a73ea09a-fffa-47fc-8cf2-8699258828eb

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    december2nd.ddns.net

  • primary_dns_server

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8009

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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe
    "C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2836
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2120
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZYoQJBONC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2624
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZYoQJBONC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79F1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2440
    • C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe
      "C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.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:2580
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7B48.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:320
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "TCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7BA6.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp79F1.tmp

    Filesize

    1KB

    MD5

    613b011c75067da703b2ddbf3c4dc892

    SHA1

    94c3812e94160ef58f3a88d599ce35627a88ec28

    SHA256

    7566fe03dcf80ad2530c1522be01829eba0a2c66d59907578979f4114b6041ca

    SHA512

    f648a7300a43b5e3b9f7c97c70da7b14c708086bfedfbb7ca60609123315d8e056e0f730d942e7158fc92c06916d573bc8c4e2b3acc0b72b8081d640bd880c42

  • C:\Users\Admin\AppData\Local\Temp\tmp7B48.tmp

    Filesize

    1KB

    MD5

    9f0fc5e991293a3f4d76c1839717b75b

    SHA1

    6128cfbc8b03e0c0ef10d0c7ab514e1d14d0fb0b

    SHA256

    7decf25139166e6df06415a692e1c4efaa844ed4e57ec2b4fadbd614e6941945

    SHA512

    cdd1147c8dc64bf41a05b82e14ea537f32737ff744b624bfd4369d728d291e4014a2eeffa3676807598d0f7ff4e4f333d9f1b1e0c81624bd76a4dd2cd7a5c696

  • C:\Users\Admin\AppData\Local\Temp\tmp7BA6.tmp

    Filesize

    1KB

    MD5

    4b7ef560289c0f62d0baf6f14f48a57a

    SHA1

    8331acb90dde588aa3196919f6e847f398fd06d1

    SHA256

    062844155306130d6fafc4fe10ac9e5ddd2ed462532b729c50cdc979c0d83207

    SHA512

    ecaa27c4b703d95f9f9b37d8c339982970482e7dab968c2010e0aa644bbfa31973111aafb827565af30c423d1d14e4ff997ec149614e713ff7ef3456894d02d8

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BZ5GC7HE6WJY3MO3NSDH.temp

    Filesize

    7KB

    MD5

    fdd055f1f64e497bf7348bfd7c3b76e9

    SHA1

    3e8f62e3531524d10db8000427dc79833c56c7c5

    SHA256

    0b808ac05a36fe294881eb49cef5deab500ba77bcffe19fba5f321f1a61a8b3f

    SHA512

    e67a33bde4f610408a294a3cfb04b3c408944160d1c829572e87acc2549f1582625ba099d89f6c0900a3ec4fbd0159e55d9451dcfb9c138ec1d5b0324174dab0

  • memory/2580-20-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-25-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-57-0x0000000005240000-0x0000000005254000-memory.dmp

    Filesize

    80KB

  • memory/2580-56-0x0000000004BE0000-0x0000000004C0E000-memory.dmp

    Filesize

    184KB

  • memory/2580-55-0x0000000004BD0000-0x0000000004BDE000-memory.dmp

    Filesize

    56KB

  • memory/2580-54-0x0000000004A70000-0x0000000004A84000-memory.dmp

    Filesize

    80KB

  • memory/2580-29-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-31-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-53-0x0000000004A60000-0x0000000004A70000-memory.dmp

    Filesize

    64KB

  • memory/2580-28-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2580-50-0x0000000001180000-0x000000000118E000-memory.dmp

    Filesize

    56KB

  • memory/2580-23-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-21-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2580-52-0x0000000004A50000-0x0000000004A64000-memory.dmp

    Filesize

    80KB

  • memory/2580-51-0x00000000011D0000-0x00000000011DC000-memory.dmp

    Filesize

    48KB

  • memory/2580-40-0x0000000000630000-0x000000000063A000-memory.dmp

    Filesize

    40KB

  • memory/2580-41-0x0000000000640000-0x000000000064C000-memory.dmp

    Filesize

    48KB

  • memory/2580-42-0x0000000000720000-0x000000000073E000-memory.dmp

    Filesize

    120KB

  • memory/2580-43-0x0000000000AB0000-0x0000000000ABA000-memory.dmp

    Filesize

    40KB

  • memory/2580-46-0x0000000000BD0000-0x0000000000BE2000-memory.dmp

    Filesize

    72KB

  • memory/2580-47-0x0000000000D60000-0x0000000000D7A000-memory.dmp

    Filesize

    104KB

  • memory/2580-48-0x0000000000D80000-0x0000000000D8E000-memory.dmp

    Filesize

    56KB

  • memory/2580-49-0x0000000001170000-0x0000000001182000-memory.dmp

    Filesize

    72KB

  • memory/2836-32-0x0000000074900000-0x0000000074FEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-1-0x0000000074900000-0x0000000074FEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-2-0x0000000000A50000-0x0000000000A90000-memory.dmp

    Filesize

    256KB

  • memory/2836-5-0x0000000000510000-0x0000000000526000-memory.dmp

    Filesize

    88KB

  • memory/2836-0-0x00000000011E0000-0x0000000001284000-memory.dmp

    Filesize

    656KB

  • memory/2836-3-0x00000000004D0000-0x00000000004E8000-memory.dmp

    Filesize

    96KB

  • memory/2836-4-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2836-6-0x0000000004EB0000-0x0000000004F2C000-memory.dmp

    Filesize

    496KB