Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-04-2024 01:00

General

  • Target

    0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe

  • Size

    630KB

  • MD5

    55abd8961bb1559aacdd14bc4abe2948

  • SHA1

    cff001eea9b43d712fbcc4cf9fb9b136f8c4109d

  • SHA256

    0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6

  • SHA512

    e5a6e38bc943c2b6fe7c157f3e719303c7b216edf3d483dd7c2b7a4267dd3d0d6b500015ef96d3c041e2032e6aabec6787bebb6f4af3f2070d9cb9fa8d2b4c2b

  • SSDEEP

    12288:KjB778QTJ4oNyNN1N84trNRngS5B2/JD3CJMJjEebEPs18VT1IMajPsWj6Mr:UBlJ4tNXN84NgSUtCW1EeAaihaDsWj6Q

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

december2nd.ddns.net:64418

december2n.duckdns.org:64418

Mutex

a73ea09a-fffa-47fc-8cf2-8699258828eb

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    december2n.duckdns.org

  • backup_dns_server

  • buffer_size

    65538

  • build_time

    2024-02-03T01:52:12.147368736Z

  • 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

    64418

  • default_group

    NO GREE

  • enable_debug_mode

    true

  • gc_threshold

    1.0485772e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.0485772e+07

  • mutex

    a73ea09a-fffa-47fc-8cf2-8699258828eb

  • 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

    false

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8009

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • 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
  • 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).

  • 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 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe
    "C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3020
    • 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\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:644
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZYoQJBONC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3980
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZYoQJBONC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8925.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:808
    • C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.exe
      "C:\Users\Admin\AppData\Local\Temp\0117ba3b90a77a00da548bf15490d6623de69e535d75fbbce8279b91c82f5ef6.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:1884
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DSL Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp90E6.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:4172
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DSL Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp927D.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:3096

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

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

    Filesize

    18KB

    MD5

    fa472e0cb84f5878665b7c2265880e8a

    SHA1

    5548e1075d3d37c7b4ac18034c3980aa1be0e2f1

    SHA256

    97e8f177cea2c03843db4623b6c42e3ae157051ea1d93fdc300b894c73ae3aa1

    SHA512

    3b26a57103d17a2935c91fff9d0e2e35f1378bb5bebec99d467e0de032bc50f356522c0031071352f49ce75a84a71001ca37298dc3e9562f319d75d9a158d6d4

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_knh20whq.35s.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8925.tmp

    Filesize

    1KB

    MD5

    8e0f41de76b09a0187dc6a48836b825d

    SHA1

    d3e19dd4fb0e48a5ff469de0aac88f05a03a7ff9

    SHA256

    d192815c222f677e47ffcf21202224186409fd1e34a6c1907972627d5e07e380

    SHA512

    c8eab44c1a25104f87cb946b94db13cf9c613033e490e652dfa151d0caa1344a200af049e92798440061985769f0ed71c265ea812c85896297fa09c53fa03508

  • C:\Users\Admin\AppData\Local\Temp\tmp90E6.tmp

    Filesize

    1KB

    MD5

    9f0fc5e991293a3f4d76c1839717b75b

    SHA1

    6128cfbc8b03e0c0ef10d0c7ab514e1d14d0fb0b

    SHA256

    7decf25139166e6df06415a692e1c4efaa844ed4e57ec2b4fadbd614e6941945

    SHA512

    cdd1147c8dc64bf41a05b82e14ea537f32737ff744b624bfd4369d728d291e4014a2eeffa3676807598d0f7ff4e4f333d9f1b1e0c81624bd76a4dd2cd7a5c696

  • C:\Users\Admin\AppData\Local\Temp\tmp927D.tmp

    Filesize

    1KB

    MD5

    93ce4074fc5eb179781efe164156eb91

    SHA1

    244d5d799f3de4f3de3be7ec6aa139d413efe0e6

    SHA256

    8de986511fc41fa28d7609844b2b41d496813a6814d43652cd99b280aa266da5

    SHA512

    7edf4f70158e51719f7d4804ba69256ed6fdd8514b51fd937be3ee6cc1ea9e2760671c11ffe9b551d25db484dcc3683fa6cd3836cb4033ecb8fb6baa76df3e0c

  • memory/644-16-0x0000000005030000-0x0000000005658000-memory.dmp

    Filesize

    6.2MB

  • memory/644-89-0x0000000007250000-0x000000000725A000-memory.dmp

    Filesize

    40KB

  • memory/644-25-0x0000000004EE0000-0x0000000004F02000-memory.dmp

    Filesize

    136KB

  • memory/644-27-0x0000000005740000-0x00000000057A6000-memory.dmp

    Filesize

    408KB

  • memory/644-102-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/644-15-0x00000000048E0000-0x0000000004916000-memory.dmp

    Filesize

    216KB

  • memory/644-90-0x0000000007460000-0x00000000074F6000-memory.dmp

    Filesize

    600KB

  • memory/644-26-0x00000000056D0000-0x0000000005736000-memory.dmp

    Filesize

    408KB

  • memory/644-86-0x0000000006EB0000-0x0000000006F53000-memory.dmp

    Filesize

    652KB

  • memory/644-75-0x0000000071010000-0x000000007105C000-memory.dmp

    Filesize

    304KB

  • memory/644-20-0x00000000049F0000-0x0000000004A00000-memory.dmp

    Filesize

    64KB

  • memory/644-19-0x00000000049F0000-0x0000000004A00000-memory.dmp

    Filesize

    64KB

  • memory/644-18-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/644-52-0x0000000006340000-0x000000000638C000-memory.dmp

    Filesize

    304KB

  • memory/644-51-0x0000000005E90000-0x0000000005EAE000-memory.dmp

    Filesize

    120KB

  • memory/1884-62-0x0000000005B50000-0x0000000005B6E000-memory.dmp

    Filesize

    120KB

  • memory/1884-48-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1884-61-0x0000000005AB0000-0x0000000005ABC000-memory.dmp

    Filesize

    48KB

  • memory/1884-60-0x0000000005AA0000-0x0000000005AAA000-memory.dmp

    Filesize

    40KB

  • memory/1884-63-0x00000000068C0000-0x00000000068CA000-memory.dmp

    Filesize

    40KB

  • memory/3020-17-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3020-6-0x0000000004DC0000-0x0000000004DD8000-memory.dmp

    Filesize

    96KB

  • memory/3020-50-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3020-1-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3020-24-0x0000000004B40000-0x0000000004B50000-memory.dmp

    Filesize

    64KB

  • memory/3020-2-0x0000000005070000-0x0000000005614000-memory.dmp

    Filesize

    5.6MB

  • memory/3020-3-0x0000000004B60000-0x0000000004BF2000-memory.dmp

    Filesize

    584KB

  • memory/3020-0-0x0000000000190000-0x0000000000234000-memory.dmp

    Filesize

    656KB

  • memory/3020-10-0x00000000084F0000-0x000000000858C000-memory.dmp

    Filesize

    624KB

  • memory/3020-9-0x0000000005E50000-0x0000000005ECC000-memory.dmp

    Filesize

    496KB

  • memory/3020-8-0x0000000005000000-0x0000000005016000-memory.dmp

    Filesize

    88KB

  • memory/3020-7-0x0000000004FE0000-0x0000000004FEE000-memory.dmp

    Filesize

    56KB

  • memory/3020-4-0x0000000004AF0000-0x0000000004AFA000-memory.dmp

    Filesize

    40KB

  • memory/3020-5-0x0000000004B40000-0x0000000004B50000-memory.dmp

    Filesize

    64KB

  • memory/3980-91-0x0000000007670000-0x0000000007681000-memory.dmp

    Filesize

    68KB

  • memory/3980-93-0x00000000076B0000-0x00000000076C4000-memory.dmp

    Filesize

    80KB

  • memory/3980-87-0x0000000007AB0000-0x000000000812A000-memory.dmp

    Filesize

    6.5MB

  • memory/3980-88-0x0000000007470000-0x000000000748A000-memory.dmp

    Filesize

    104KB

  • memory/3980-77-0x0000000006720000-0x000000000673E000-memory.dmp

    Filesize

    120KB

  • memory/3980-65-0x0000000071010000-0x000000007105C000-memory.dmp

    Filesize

    304KB

  • memory/3980-47-0x0000000005B10000-0x0000000005E64000-memory.dmp

    Filesize

    3.3MB

  • memory/3980-92-0x00000000076A0000-0x00000000076AE000-memory.dmp

    Filesize

    56KB

  • memory/3980-64-0x0000000006760000-0x0000000006792000-memory.dmp

    Filesize

    200KB

  • memory/3980-94-0x00000000077B0000-0x00000000077CA000-memory.dmp

    Filesize

    104KB

  • memory/3980-95-0x0000000007790000-0x0000000007798000-memory.dmp

    Filesize

    32KB

  • memory/3980-22-0x0000000002820000-0x0000000002830000-memory.dmp

    Filesize

    64KB

  • memory/3980-21-0x0000000002820000-0x0000000002830000-memory.dmp

    Filesize

    64KB

  • memory/3980-101-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3980-23-0x0000000074820000-0x0000000074FD0000-memory.dmp

    Filesize

    7.7MB