Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 08:25

General

  • Target

    ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe

  • Size

    945KB

  • MD5

    a1f6c95a377a8c4c194a018614a6b463

  • SHA1

    cd8ce511a2ac57aec39892c0b27832a18e77fc39

  • SHA256

    ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c

  • SHA512

    fb93341612485022964338a421fbf6a77876d1efc492307e18a4fa28354643f8675cf685847ee8ffc9315232449f1c6b8aab674bb2beb0dc5e14ca6e020510a5

  • SSDEEP

    12288:gI0MYBl4BwkivLUyyqexCwG879IO0MgsaQ/nsy9LHr24HwmU3V50:50MYfMweyTivP7yO7aQ/nsWRQJV5

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

december2nd.ddns.net:65024

december2n.duckdns.org:65024

Mutex

2c009a56-c28c-48f4-8875-acf9e1222e9f

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    december2n.duckdns.org

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2024-02-17T09:12:36.211032636Z

  • 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

    65024

  • default_group

    NO GREE

  • 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

    2c009a56-c28c-48f4-8875-acf9e1222e9f

  • 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

    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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 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 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe
    "C:\Users\Admin\AppData\Local\Temp\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:512
    • 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\ee66629e98c3278017e7297d3b2b57aac9783a51a46b34046ccc866d10ba4f3c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1084
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fupTmRCVq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4052
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fupTmRCVq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp35A1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1328
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4028
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3BBC.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4320
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4003.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2652
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4100,i,13544508926340531097,6671217806016090640,262144 --variations-seed-version --mojo-platform-channel-handle=4020 /prefetch:8
    1⤵
      PID:4588

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2KB

      MD5

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      13a8a5f777238934e75b2ebc5bcb3824

      SHA1

      90a29e4ca1289a0723a9f29a35bd584827699b8c

      SHA256

      6cbcd4510eb0f24da92130edea2c9b25aa48c1b985e7089ea27262f519e31784

      SHA512

      73d7809cd5c38eec104effc64d4d3c8638873e4872bd4d442d43a5d9b9e4b9ba5a69ae4312bba51b29b533596692b88a64d764e92efd6a7900a2098f57495cff

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e34ofwtz.0ov.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp35A1.tmp

      Filesize

      1KB

      MD5

      ed722c99a3b93ffb2e3be231473a614f

      SHA1

      409f9eb538d1464dd6cde6454b265c0e97ec7fed

      SHA256

      929f0a9e5f79c8d122606f6cb50e606440fc34d992cbacce2252d7e7b92b777e

      SHA512

      84be0543388464177e38e36a6ac716f1eb405e4a3fe2b0c87387acbc87ce35e120ce57dd27b4ef727c7b41602835741889b1a3b5b57ff9d166197a603f36ebfe

    • C:\Users\Admin\AppData\Local\Temp\tmp3BBC.tmp

      Filesize

      1KB

      MD5

      8cad1b41587ced0f1e74396794f31d58

      SHA1

      11054bf74fcf5e8e412768035e4dae43aa7b710f

      SHA256

      3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

      SHA512

      99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

    • C:\Users\Admin\AppData\Local\Temp\tmp4003.tmp

      Filesize

      1KB

      MD5

      93d357e6194c8eb8d0616a9f592cc4bf

      SHA1

      5cc3a3d95d82cb88f65cb6dc6c188595fa272808

      SHA256

      a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

      SHA512

      4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

    • memory/512-5-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/512-4-0x00000000058B0000-0x00000000058BA000-memory.dmp

      Filesize

      40KB

    • memory/512-8-0x0000000006AD0000-0x0000000006AE6000-memory.dmp

      Filesize

      88KB

    • memory/512-9-0x0000000006F10000-0x0000000006F8C000-memory.dmp

      Filesize

      496KB

    • memory/512-10-0x00000000094B0000-0x000000000954C000-memory.dmp

      Filesize

      624KB

    • memory/512-15-0x00000000749EE000-0x00000000749EF000-memory.dmp

      Filesize

      4KB

    • memory/512-6-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

      Filesize

      120KB

    • memory/512-7-0x0000000006AA0000-0x0000000006AB0000-memory.dmp

      Filesize

      64KB

    • memory/512-3-0x0000000005940000-0x00000000059D2000-memory.dmp

      Filesize

      584KB

    • memory/512-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

      Filesize

      5.6MB

    • memory/512-50-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/512-1-0x0000000000DC0000-0x0000000000EB2000-memory.dmp

      Filesize

      968KB

    • memory/512-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

      Filesize

      4KB

    • memory/512-23-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/1084-26-0x0000000004E00000-0x0000000004E66000-memory.dmp

      Filesize

      408KB

    • memory/1084-95-0x0000000007370000-0x0000000007378000-memory.dmp

      Filesize

      32KB

    • memory/1084-24-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/1084-91-0x0000000007250000-0x0000000007261000-memory.dmp

      Filesize

      68KB

    • memory/1084-35-0x00000000057C0000-0x0000000005B14000-memory.dmp

      Filesize

      3.3MB

    • memory/1084-102-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/1084-16-0x0000000002460000-0x0000000002496000-memory.dmp

      Filesize

      216KB

    • memory/1084-17-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/1084-25-0x0000000004D60000-0x0000000004D82000-memory.dmp

      Filesize

      136KB

    • memory/1084-79-0x0000000075260000-0x00000000752AC000-memory.dmp

      Filesize

      304KB

    • memory/1084-92-0x0000000007280000-0x000000000728E000-memory.dmp

      Filesize

      56KB

    • memory/1084-19-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/1084-18-0x0000000005190000-0x00000000057B8000-memory.dmp

      Filesize

      6.2MB

    • memory/1084-27-0x0000000004FA0000-0x0000000005006000-memory.dmp

      Filesize

      408KB

    • memory/4028-62-0x00000000067D0000-0x00000000067EE000-memory.dmp

      Filesize

      120KB

    • memory/4028-63-0x0000000006910000-0x000000000691A000-memory.dmp

      Filesize

      40KB

    • memory/4028-61-0x0000000005910000-0x000000000591C000-memory.dmp

      Filesize

      48KB

    • memory/4028-60-0x0000000005900000-0x000000000590A000-memory.dmp

      Filesize

      40KB

    • memory/4028-34-0x0000000000400000-0x000000000043A000-memory.dmp

      Filesize

      232KB

    • memory/4052-75-0x0000000006C20000-0x0000000006C3E000-memory.dmp

      Filesize

      120KB

    • memory/4052-76-0x0000000006C40000-0x0000000006CE3000-memory.dmp

      Filesize

      652KB

    • memory/4052-77-0x00000000073E0000-0x0000000007A5A000-memory.dmp

      Filesize

      6.5MB

    • memory/4052-78-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

      Filesize

      104KB

    • memory/4052-64-0x0000000006BE0000-0x0000000006C12000-memory.dmp

      Filesize

      200KB

    • memory/4052-89-0x0000000006E10000-0x0000000006E1A000-memory.dmp

      Filesize

      40KB

    • memory/4052-90-0x0000000007020000-0x00000000070B6000-memory.dmp

      Filesize

      600KB

    • memory/4052-65-0x0000000075260000-0x00000000752AC000-memory.dmp

      Filesize

      304KB

    • memory/4052-55-0x0000000005AF0000-0x0000000005B3C000-memory.dmp

      Filesize

      304KB

    • memory/4052-93-0x0000000006FE0000-0x0000000006FF4000-memory.dmp

      Filesize

      80KB

    • memory/4052-94-0x00000000070E0000-0x00000000070FA000-memory.dmp

      Filesize

      104KB

    • memory/4052-54-0x0000000005A50000-0x0000000005A6E000-memory.dmp

      Filesize

      120KB

    • memory/4052-20-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-22-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-101-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB

    • memory/4052-33-0x00000000749E0000-0x0000000075190000-memory.dmp

      Filesize

      7.7MB