Analysis

  • max time kernel
    145s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2022 07:38

General

  • Target

    65582ac1fc28f8c6040543cde95022c7.exe

  • Size

    745KB

  • MD5

    65582ac1fc28f8c6040543cde95022c7

  • SHA1

    dd60a2978a480b0c42ecd5a85d6cf3ea374a5c85

  • SHA256

    f4bc1181812158592e420dbf3caa11923497746cb7475362c1200bf630b0b8f5

  • SHA512

    a0b6222cae9b8c8e0d5943e9b8a5ac3d388e583c63c58a14695bc2c2fb73e8c10e0d7dc7fe08d6e7a47f73d9f686d671bf2ee8001f37f618eb8006f58d956ac3

  • SSDEEP

    12288:vNaEOdBRDibXe0dd2oVuxzq2XdQg/BbqZMu0Db+5zQghZBUAUgIL:bOdgX/d9UXFBGx02dPIL

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

rolandlandson149.bounceme.net:1007

127.0.0.1:1007

Mutex

48099ca8-c1b4-49f3-9fe1-d8dfcbf66c09

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-06-13T20:58:05.824762936Z

  • 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

    1007

  • default_group

    sepTmAn

  • 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

    48099ca8-c1b4-49f3-9fe1-d8dfcbf66c09

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    rolandlandson149.bounceme.net

  • 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 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65582ac1fc28f8c6040543cde95022c7.exe
    "C:\Users\Admin\AppData\Local\Temp\65582ac1fc28f8c6040543cde95022c7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\65582ac1fc28f8c6040543cde95022c7.exe
      "C:\Users\Admin\AppData\Local\Temp\65582ac1fc28f8c6040543cde95022c7.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:1644
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA1CC.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1100
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "SCSI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA363.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1192

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA1CC.tmp

    Filesize

    1KB

    MD5

    f8a860786ff584a90365928ab371edff

    SHA1

    c9c6850b4d32caa3cb7c828a9965a31af6061652

    SHA256

    5a8601a226e7ea5f1931fc03fa54efe01ff6e234746a06a940c0b369a9b78e1c

    SHA512

    a1a1fcd442f5c9889790d9dc41e45b4d85bdc9df9c8ece8debbf007ceede64d70efafa0db26940ca4832e799e19991db7f585cf0fc47f6f1242f825afeafbf0c

  • C:\Users\Admin\AppData\Local\Temp\tmpA363.tmp

    Filesize

    1KB

    MD5

    4e71faa3a77029484cfaba423d96618f

    SHA1

    9c837d050bb43d69dc608af809c292e13bca4718

    SHA256

    c470f45efd2e7c4c5b88534a18965a78dce0f8e154d3e45a9d5569ad0e334bdb

    SHA512

    6d014de41352f2b0b494d94cd58188791e81d4e53578d0722110b6827793b735e19c614877f25c61b26233dea1b5f1998ba1240bdc8fa04c87b7e64a4ca15fe0

  • memory/1100-74-0x0000000000000000-mapping.dmp

  • memory/1192-76-0x0000000000000000-mapping.dmp

  • memory/1644-65-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1644-70-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1644-80-0x00000000003F0000-0x00000000003FA000-memory.dmp

    Filesize

    40KB

  • memory/1644-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1644-62-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1644-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1644-79-0x00000000003D0000-0x00000000003EE000-memory.dmp

    Filesize

    120KB

  • memory/1644-67-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1644-68-0x000000000041E792-mapping.dmp

  • memory/1644-78-0x00000000003C0000-0x00000000003CA000-memory.dmp

    Filesize

    40KB

  • memory/1644-72-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1652-58-0x0000000000720000-0x000000000072C000-memory.dmp

    Filesize

    48KB

  • memory/1652-57-0x0000000000590000-0x00000000005A6000-memory.dmp

    Filesize

    88KB

  • memory/1652-56-0x0000000004EA0000-0x0000000004F66000-memory.dmp

    Filesize

    792KB

  • memory/1652-55-0x00000000758C1000-0x00000000758C3000-memory.dmp

    Filesize

    8KB

  • memory/1652-59-0x0000000005870000-0x0000000005904000-memory.dmp

    Filesize

    592KB

  • memory/1652-54-0x00000000002C0000-0x0000000000380000-memory.dmp

    Filesize

    768KB

  • memory/1652-60-0x0000000002130000-0x000000000216A000-memory.dmp

    Filesize

    232KB