Analysis

  • max time kernel
    120s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 10:55

General

  • Target

    a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe

  • Size

    1.0MB

  • MD5

    b3d29fb2f6ee5fa0ce6e777eed56d420

  • SHA1

    6ebd26c9ae4a12e76699682a99b7e47c591481ff

  • SHA256

    a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161

  • SHA512

    3780cf7a0f339f673735ab847a36abc91aa5b3e1d63c7ab18a29507a0384018f2d0dcd62ebea4beb559d73173f763897517a567a27595743532129e26b8b8956

  • SSDEEP

    24576:ou6J33O0c+JY5UZ+XC0kGso6FauUAGhCtti4n0WY:Cu0c++OCvkGs9FauNBttLXY

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

192.177.111.65:7090

Mutex

3ddebdae-a1f4-41b3-9606-ade5cb2cec4c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    192.177.111.65

  • backup_dns_server

    192.177.111.65

  • buffer_size

    65535

  • build_time

    2024-09-21T08:21:20.013878636Z

  • 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

    7090

  • default_group

    Default

  • 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

    3ddebdae-a1f4-41b3-9606-ade5cb2cec4c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    192.177.111.65

  • primary_dns_server

    192.177.111.65

  • request_elevation

    false

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe
    "C:\Users\Admin\AppData\Local\Temp\a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\a9b8879292fbf7bd63b7880cf9e1084040aa1c9adaf0b0f2d05e721696aae161.exe"
      2⤵
      • Adds Run key to start application
      • 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:2092
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA1EA.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2188
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA297.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tilths

    Filesize

    203KB

    MD5

    c7ffd1e38d28f553bea2faf8df2dadfe

    SHA1

    689336226ca2a224d58df97cad0150eef09d7296

    SHA256

    710cc40bf10d7a602e604243b9d22b00e443bac3ff2e6f767ef56258f92fed30

    SHA512

    2a47ebb8927b84c94075ccacb8afed7b27d37a3e4d737c014a3a3cce502e0b549c44950b13605ccccaf6e50c35df608bdaf3fa336945a7bd0f40bc8cb0564a03

  • C:\Users\Admin\AppData\Local\Temp\tmpA1EA.tmp

    Filesize

    1KB

    MD5

    40b11ef601fb28f9b2e69d36857bf2ec

    SHA1

    b6454020ad2ceed193f4792b77001d0bd741b370

    SHA256

    c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

    SHA512

    e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

  • C:\Users\Admin\AppData\Local\Temp\tmpA297.tmp

    Filesize

    1KB

    MD5

    0a24db62cb5b84309c4803346caaa25d

    SHA1

    67660778f61bb44168c33ed3fe56ed86cf9583e8

    SHA256

    38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

    SHA512

    d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

  • memory/2092-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2092-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2092-17-0x0000000073EA1000-0x0000000073EA2000-memory.dmp

    Filesize

    4KB

  • memory/2092-18-0x0000000073EA0000-0x000000007444B000-memory.dmp

    Filesize

    5.7MB

  • memory/2092-19-0x0000000073EA0000-0x000000007444B000-memory.dmp

    Filesize

    5.7MB

  • memory/2092-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2092-27-0x0000000073EA0000-0x000000007444B000-memory.dmp

    Filesize

    5.7MB

  • memory/2092-35-0x0000000073EA0000-0x000000007444B000-memory.dmp

    Filesize

    5.7MB

  • memory/2092-36-0x0000000073EA0000-0x000000007444B000-memory.dmp

    Filesize

    5.7MB

  • memory/2092-37-0x0000000073EA0000-0x000000007444B000-memory.dmp

    Filesize

    5.7MB

  • memory/2268-11-0x0000000000160000-0x0000000000164000-memory.dmp

    Filesize

    16KB