Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 01:15

General

  • Target

    6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe

  • Size

    676KB

  • MD5

    d0c54245dc16324c9170c419f2500737

  • SHA1

    642c7dd025dc31d39b26af7a7be53ba617e78bd4

  • SHA256

    6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685

  • SHA512

    1e95e9efc025c53192de36154f51198181ec445145fdfe7f3b1afc83956cc49a04cbd9c6d318dde926da27057cf149565f5de5cb4208cfa78e01eef3f1f582e4

  • SSDEEP

    12288:49TK3cUmdavrlTGt5jw0LECUfE1F1Yl7tpkA1A9:0K3cFd6JNbDc13SHkG

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.66.231.103:7754

7754.hopto.org:7754

Mutex

cee2b15d-82f8-4d85-8dc9-22fd50400675

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    7754.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-06-21T07:47:09.033387236Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    7754

  • default_group

    7754Nano

  • 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

    cee2b15d-82f8-4d85-8dc9-22fd50400675

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    45.66.231.103

  • 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.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe
    "C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3884
    • 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\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1540
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\oFNArmC.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2272
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oFNArmC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDDAE.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3844
    • C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe
      "C:\Users\Admin\AppData\Local\Temp\6c22578a9080fc7f38d949df46f1bb88f386fd17ad76d78cac31e5b7782a2685.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • 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:1936
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE1E4.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:628
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE32D.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\Temp\__PSScriptPolicyTest_g3hvkogx.iqk.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    1KB

    MD5

    cad108da980b1300182e07e32b59950b

    SHA1

    b22e0595748cffb787351fa8016f093a31188b21

    SHA256

    86cb68c8442fdac0a0f3926e2d5ef129a53652ad4f1830bff4deda268d154855

    SHA512

    4924196e33fcf61c32b4bf48573e1ed4dbc42cd09d66b7c2596db859e6bd7fed5743f59665a95ff0235c9fd97d75b93971fa392ba0eced71fc74aef0e6f695b0

  • C:\Users\Admin\AppData\Local\Temp\tmpE1E4.tmp

    Filesize

    1KB

    MD5

    e02fd103e661129328cca2654fc942f5

    SHA1

    47732abd022aecd2ead81b7936ff25e0821a14c6

    SHA256

    4e7c980660a1b52f4436cd28dde7a0197ad41d06f8b2a9532f6a69bf05e3edb0

    SHA512

    76e7ad2cc4ae9ea1e130ed1cc9e1392e1cc425967a06d5e15fa902f5613c5ce08dbf3d88bf35f90d22e60ff1b7fbdb46b82e8d26cdcd31dff10193c2ac71553a

  • C:\Users\Admin\AppData\Local\Temp\tmpE32D.tmp

    Filesize

    1KB

    MD5

    93d357e6194c8eb8d0616a9f592cc4bf

    SHA1

    5cc3a3d95d82cb88f65cb6dc6c188595fa272808

    SHA256

    a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

    SHA512

    4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

  • memory/1540-21-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1540-62-0x0000000075AE0000-0x0000000075B2C000-memory.dmp

    Filesize

    304KB

  • memory/1540-98-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1540-50-0x0000000005D70000-0x0000000005DBC000-memory.dmp

    Filesize

    304KB

  • memory/1540-90-0x0000000007230000-0x0000000007244000-memory.dmp

    Filesize

    80KB

  • memory/1540-86-0x0000000007060000-0x000000000706A000-memory.dmp

    Filesize

    40KB

  • memory/1540-15-0x00000000023D0000-0x0000000002406000-memory.dmp

    Filesize

    216KB

  • memory/1540-16-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1540-17-0x0000000004EB0000-0x00000000054D8000-memory.dmp

    Filesize

    6.2MB

  • memory/1540-61-0x0000000006C90000-0x0000000006CC2000-memory.dmp

    Filesize

    200KB

  • memory/1540-18-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1540-37-0x0000000005690000-0x00000000059E4000-memory.dmp

    Filesize

    3.3MB

  • memory/1540-72-0x0000000006C50000-0x0000000006C6E000-memory.dmp

    Filesize

    120KB

  • memory/1540-25-0x0000000005550000-0x00000000055B6000-memory.dmp

    Filesize

    408KB

  • memory/1540-24-0x00000000054E0000-0x0000000005546000-memory.dmp

    Filesize

    408KB

  • memory/1540-23-0x0000000004E00000-0x0000000004E22000-memory.dmp

    Filesize

    136KB

  • memory/1540-49-0x0000000005CC0000-0x0000000005CDE000-memory.dmp

    Filesize

    120KB

  • memory/1540-73-0x0000000006CD0000-0x0000000006D73000-memory.dmp

    Filesize

    652KB

  • memory/1936-58-0x00000000059E0000-0x00000000059EA000-memory.dmp

    Filesize

    40KB

  • memory/1936-36-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1936-59-0x0000000005B10000-0x0000000005B2E000-memory.dmp

    Filesize

    120KB

  • memory/1936-60-0x0000000005D60000-0x0000000005D6A000-memory.dmp

    Filesize

    40KB

  • memory/2272-84-0x0000000007740000-0x0000000007DBA000-memory.dmp

    Filesize

    6.5MB

  • memory/2272-88-0x0000000007300000-0x0000000007311000-memory.dmp

    Filesize

    68KB

  • memory/2272-92-0x0000000007420000-0x0000000007428000-memory.dmp

    Filesize

    32KB

  • memory/2272-91-0x0000000007440000-0x000000000745A000-memory.dmp

    Filesize

    104KB

  • memory/2272-89-0x0000000007330000-0x000000000733E000-memory.dmp

    Filesize

    56KB

  • memory/2272-97-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2272-87-0x0000000007380000-0x0000000007416000-memory.dmp

    Filesize

    600KB

  • memory/2272-74-0x0000000075AE0000-0x0000000075B2C000-memory.dmp

    Filesize

    304KB

  • memory/2272-26-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2272-85-0x0000000007100000-0x000000000711A000-memory.dmp

    Filesize

    104KB

  • memory/2272-20-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2272-19-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3884-6-0x0000000005660000-0x0000000005670000-memory.dmp

    Filesize

    64KB

  • memory/3884-5-0x00000000053B0000-0x00000000053BA000-memory.dmp

    Filesize

    40KB

  • memory/3884-10-0x000000000AC70000-0x000000000AD0C000-memory.dmp

    Filesize

    624KB

  • memory/3884-0-0x000000007523E000-0x000000007523F000-memory.dmp

    Filesize

    4KB

  • memory/3884-48-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3884-3-0x00000000053D0000-0x0000000005462000-memory.dmp

    Filesize

    584KB

  • memory/3884-9-0x0000000008360000-0x00000000083DA000-memory.dmp

    Filesize

    488KB

  • memory/3884-2-0x0000000005A80000-0x0000000006024000-memory.dmp

    Filesize

    5.6MB

  • memory/3884-4-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3884-1-0x0000000000A20000-0x0000000000AD0000-memory.dmp

    Filesize

    704KB

  • memory/3884-8-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3884-7-0x000000007523E000-0x000000007523F000-memory.dmp

    Filesize

    4KB