Resubmissions

23-11-2023 13:32

231123-qs9e4aaa89 10

23-11-2023 13:13

231123-qf3f1sah2w 10

Analysis

  • max time kernel
    476s
  • max time network
    603s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-11-2023 13:32

General

  • Target

    plugmanzx.exe

  • Size

    706KB

  • MD5

    980746bbc209911ddbaaff46d856a78f

  • SHA1

    283b8da4e00d54668ff2c98645a4f6f0853a0d35

  • SHA256

    496bbeff36c20e17f2967fb96527b48ab329d1cac12347fdbd8692c46dd36786

  • SHA512

    1a40fa8878e916442b7b3acb875cb80bbcb6e5810ad272d8fa8a5df4f757b392cb2ab86ec7b271df25f981914652913ccbded6c96834f84bab1eaafd07da3574

  • SSDEEP

    12288:H1CFqELXGkJlaxoem1jMipixc06ycvpxHPi4ou0oTJOHBRAIMHEkjLzq:H1CFqQ2k7axoV1Ai4u069A4JdOHBRT2G

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

6coinc.zapto.org:6696

127.0.0.1:6696

Mutex

dc5ce709-95b6-4a26-9175-16a1a8446828

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2023-09-03T02:07:11.731490736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6696

  • default_group

    6coinc

  • 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

    dc5ce709-95b6-4a26-9175-16a1a8446828

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    6coinc.zapto.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.

  • 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 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\plugmanzx.exe
    "C:\Users\Admin\AppData\Local\Temp\plugmanzx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4800
    • C:\Users\Admin\AppData\Local\Temp\plugmanzx.exe
      "C:\Users\Admin\AppData\Local\Temp\plugmanzx.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:2688
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "NAT Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB84.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:368
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "NAT Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC41.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\plugmanzx.exe.log

    Filesize

    1KB

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • C:\Users\Admin\AppData\Local\Temp\tmpB84.tmp

    Filesize

    1KB

    MD5

    4c71cda0ae19c7af539c30611bbbdd02

    SHA1

    8729754de193c3cd41ed134d4abbd330d96efe46

    SHA256

    557e831ec81c93c6e097b4700274935690bcdc3826dc4c72e6d0545f1efdd5fa

    SHA512

    bc8988322d3859121c08a0f3339cc2464e716ee0c4113ea9e66f33f6f40b096e6defb4c0f48a10d43602d037bcdee2de5db0b0df7e41e17f3046d7cfe8358120

  • C:\Users\Admin\AppData\Local\Temp\tmpC41.tmp

    Filesize

    1KB

    MD5

    c58d37cb49c18f1d7cece3c78ac2f407

    SHA1

    769ed0ea9d5269e1cec7234eaac77da129cc0463

    SHA256

    52cdb418384a912c5b7071c92d7761f0d12250f07dbbb31876eb2e8d65acbae7

    SHA512

    2efcb3eaf050d56ad3d483112303a1543f9fc457119fbca7d81b45d5619c0f1ba706ce96644d4e2055c1b5ada7af13f071495287a775ce234d9125633bf02775

  • memory/2688-35-0x0000000006F40000-0x0000000006F54000-memory.dmp

    Filesize

    80KB

  • memory/2688-15-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB

  • memory/2688-44-0x0000000005590000-0x00000000055A0000-memory.dmp

    Filesize

    64KB

  • memory/2688-25-0x0000000005AC0000-0x0000000005ADE000-memory.dmp

    Filesize

    120KB

  • memory/2688-43-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB

  • memory/2688-41-0x00000000071A0000-0x0000000007206000-memory.dmp

    Filesize

    408KB

  • memory/2688-40-0x0000000006FD0000-0x0000000006FE4000-memory.dmp

    Filesize

    80KB

  • memory/2688-26-0x0000000005AE0000-0x0000000005AEA000-memory.dmp

    Filesize

    40KB

  • memory/2688-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2688-39-0x0000000006F90000-0x0000000006FBE000-memory.dmp

    Filesize

    184KB

  • memory/2688-38-0x0000000006F80000-0x0000000006F8E000-memory.dmp

    Filesize

    56KB

  • memory/2688-32-0x0000000006F10000-0x0000000006F22000-memory.dmp

    Filesize

    72KB

  • memory/2688-16-0x0000000005590000-0x00000000055A0000-memory.dmp

    Filesize

    64KB

  • memory/2688-29-0x0000000006760000-0x0000000006772000-memory.dmp

    Filesize

    72KB

  • memory/2688-37-0x0000000006F60000-0x0000000006F74000-memory.dmp

    Filesize

    80KB

  • memory/2688-24-0x0000000005810000-0x000000000581A000-memory.dmp

    Filesize

    40KB

  • memory/2688-36-0x0000000006F50000-0x0000000006F60000-memory.dmp

    Filesize

    64KB

  • memory/2688-34-0x0000000006F30000-0x0000000006F3C000-memory.dmp

    Filesize

    48KB

  • memory/2688-33-0x0000000006F20000-0x0000000006F2E000-memory.dmp

    Filesize

    56KB

  • memory/2688-30-0x0000000006770000-0x000000000678A000-memory.dmp

    Filesize

    104KB

  • memory/2688-31-0x0000000006F00000-0x0000000006F0E000-memory.dmp

    Filesize

    56KB

  • memory/4800-3-0x0000000004D50000-0x0000000004DE2000-memory.dmp

    Filesize

    584KB

  • memory/4800-1-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB

  • memory/4800-10-0x000000000CD80000-0x000000000CE00000-memory.dmp

    Filesize

    512KB

  • memory/4800-0-0x00000000003E0000-0x0000000000496000-memory.dmp

    Filesize

    728KB

  • memory/4800-6-0x0000000004F80000-0x000000000501C000-memory.dmp

    Filesize

    624KB

  • memory/4800-2-0x0000000005250000-0x000000000574E000-memory.dmp

    Filesize

    5.0MB

  • memory/4800-14-0x0000000073F80000-0x000000007466E000-memory.dmp

    Filesize

    6.9MB

  • memory/4800-4-0x0000000004D30000-0x0000000004D40000-memory.dmp

    Filesize

    64KB

  • memory/4800-9-0x0000000005230000-0x000000000523A000-memory.dmp

    Filesize

    40KB

  • memory/4800-8-0x0000000005220000-0x0000000005226000-memory.dmp

    Filesize

    24KB

  • memory/4800-7-0x0000000004F40000-0x0000000004F58000-memory.dmp

    Filesize

    96KB

  • memory/4800-5-0x0000000004E60000-0x0000000004E6A000-memory.dmp

    Filesize

    40KB