Analysis

  • max time kernel
    122s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    18-06-2024 15:56

General

  • Target

    2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372.exe

  • Size

    829KB

  • MD5

    130e262fc8d5700e44df1213fa857f7f

  • SHA1

    e503933d4e1906f7ad224b2e81a67a9b2ac8119e

  • SHA256

    2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372

  • SHA512

    58defe66c7bb104a17c54b8da3ab4e786080f2b04b04bac8dd591131a869731d6d2a1bd249b234368c3dab7d7d49e9bfb0b15e4993b323f59319a57b27968690

  • SSDEEP

    24576:Yg61jjk0LAta9AuDIPQJZTcwICn8VgtugrQzhu:60YZgwICtU0Shu

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

2023endofyear.duckdns.org:15230

127.0.0.1:15230

Mutex

8c336e03-69eb-4281-b96d-2ac47eee0dc7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-03-23T06:08:52.807981736Z

  • 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

    15230

  • default_group

    JUNE/24

  • 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

    8c336e03-69eb-4281-b96d-2ac47eee0dc7

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    2023endofyear.duckdns.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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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).

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372.exe
    "C:\Users\Admin\AppData\Local\Temp\2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1808
    • 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\2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qAUEpTI.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2760
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qAUEpTI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9BF1.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2600
    • C:\Users\Admin\AppData\Local\Temp\2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372.exe
      "C:\Users\Admin\AppData\Local\Temp\2de9fa092d7c352b538462db3b0a9aa757924ad55383b24a61e797cf3cf08372.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:1520
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA267.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:264
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA323.tmp"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1324

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9BF1.tmp
    Filesize

    1KB

    MD5

    45c1a50cbef02e6488e809a2011f5a10

    SHA1

    e9ac01ae2fd2fa96484d3b5f573b2f6810482007

    SHA256

    e5511dc345033011ac4ff90ea3a3e4869f361bd5a1425b7075c117e54d717f78

    SHA512

    329bb4d3a250f5c6118f15108f2dd422b3b7eef0cf2fbbfbabfd55eee87ca40ad50acb246043f4dc0aba53bef2523a32a97b502fade0c66d7705bba4817f4955

  • C:\Users\Admin\AppData\Local\Temp\tmpA267.tmp
    Filesize

    1KB

    MD5

    1862115c696cfca41bb9ab4073ec6711

    SHA1

    3599e55e7007fab6d330022dc997ac075050ec3c

    SHA256

    903a6fab7fe276131c43d5e97c1a1034f1ad12971bde543fd345e3943224289e

    SHA512

    062e81678d5b71f1decef38d9ab8429377bb2393dca3d6ac7db74ab29a45d18726ac44c714bb38e2c9150aae945a20cbeec47208d261c3acdd3afbbf0c40c9a3

  • C:\Users\Admin\AppData\Local\Temp\tmpA323.tmp
    Filesize

    1KB

    MD5

    93d357e6194c8eb8d0616a9f592cc4bf

    SHA1

    5cc3a3d95d82cb88f65cb6dc6c188595fa272808

    SHA256

    a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

    SHA512

    4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    Filesize

    7KB

    MD5

    92061634c55b1aa498915e87eef5c76b

    SHA1

    674b81008239644d219fce1975533f39a769643a

    SHA256

    b6763dd819831bcd7a1e0d4871d760b4a98b23cf499e54ead299bd52f2bb9216

    SHA512

    0e166bbac70c85e6eaa6c60c9abe4aff2ba5b5b00c67f71c311a31106cf0a99b318a707f079e74096274ee97dcf256cdbab23fc48de7826797981b51751be864

  • memory/1520-45-0x0000000001F30000-0x0000000001F4A000-memory.dmp
    Filesize

    104KB

  • memory/1520-38-0x0000000000910000-0x000000000091A000-memory.dmp
    Filesize

    40KB

  • memory/1520-55-0x00000000041A0000-0x00000000041B4000-memory.dmp
    Filesize

    80KB

  • memory/1520-54-0x0000000004620000-0x000000000464E000-memory.dmp
    Filesize

    184KB

  • memory/1520-19-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-29-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-28-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-27-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1520-24-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-22-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-20-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1520-53-0x0000000004170000-0x000000000417E000-memory.dmp
    Filesize

    56KB

  • memory/1520-52-0x0000000004150000-0x0000000004164000-memory.dmp
    Filesize

    80KB

  • memory/1520-51-0x0000000002040000-0x0000000002050000-memory.dmp
    Filesize

    64KB

  • memory/1520-50-0x0000000002030000-0x0000000002044000-memory.dmp
    Filesize

    80KB

  • memory/1520-39-0x0000000000940000-0x000000000094C000-memory.dmp
    Filesize

    48KB

  • memory/1520-40-0x0000000000920000-0x000000000093E000-memory.dmp
    Filesize

    120KB

  • memory/1520-41-0x0000000001DA0000-0x0000000001DAA000-memory.dmp
    Filesize

    40KB

  • memory/1520-44-0x0000000001F20000-0x0000000001F32000-memory.dmp
    Filesize

    72KB

  • memory/1520-49-0x0000000002020000-0x000000000202C000-memory.dmp
    Filesize

    48KB

  • memory/1520-46-0x0000000001FA0000-0x0000000001FAE000-memory.dmp
    Filesize

    56KB

  • memory/1520-47-0x0000000001FC0000-0x0000000001FD2000-memory.dmp
    Filesize

    72KB

  • memory/1520-48-0x0000000002010000-0x000000000201E000-memory.dmp
    Filesize

    56KB

  • memory/1808-0-0x0000000074CCE000-0x0000000074CCF000-memory.dmp
    Filesize

    4KB

  • memory/1808-5-0x00000000050F0000-0x000000000516C000-memory.dmp
    Filesize

    496KB

  • memory/1808-1-0x00000000001E0000-0x00000000002B6000-memory.dmp
    Filesize

    856KB

  • memory/1808-2-0x0000000074CC0000-0x00000000753AE000-memory.dmp
    Filesize

    6.9MB

  • memory/1808-30-0x0000000074CC0000-0x00000000753AE000-memory.dmp
    Filesize

    6.9MB

  • memory/1808-3-0x0000000001EA0000-0x0000000001EBA000-memory.dmp
    Filesize

    104KB

  • memory/1808-4-0x0000000000650000-0x0000000000660000-memory.dmp
    Filesize

    64KB