Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 01:31

General

  • Target

    c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85.exe

  • Size

    670KB

  • MD5

    11b19b59f657910f0af49721a77bc2dd

  • SHA1

    3078779d892bd96e5dfddb76d491f52eefd39a2d

  • SHA256

    c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85

  • SHA512

    de92458acc1341bd5db1ca3f5542339c5e06dac938903efc9c9eeca234058a92fb1e99bdb94c547a7126dfe033c300beb5a8ef3ca63dcb61bb6dbd397b7602e2

  • SSDEEP

    12288:EWYIPXjxannnHg2g2Qsj2kGPBjQW/dAOAbnB4BziHmBOXB3NEqRFnj7Qu4YCgca:EWYIPFannnHg2F2kUBjB8B4BOHLXcqbh

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

amechi.duckdns.org:3190

Mutex

3ccbc5bb-95bf-4854-a1cd-6f73b82adcba

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    amechi.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-02-04T08:58:27.782943536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3190

  • default_group

    GLORY

  • 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

    3ccbc5bb-95bf-4854-a1cd-6f73b82adcba

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    amechi.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.

  • 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85.exe
    "C:\Users\Admin\AppData\Local\Temp\c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2976
    • 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\c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2704
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hXGmUcb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1268
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hXGmUcb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp782D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4908
    • C:\Users\Admin\AppData\Local\Temp\c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85.exe
      "C:\Users\Admin\AppData\Local\Temp\c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85.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
      PID:1528

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

    7e5852742733964cb07919dfd1488e76

    SHA1

    5e88e778de84069656ba4e82ddec08bb0d23fbef

    SHA256

    0670bcc1b3fef8d3a42b468e66b3ddb993f9f369444be638c85b3c1150654cd7

    SHA512

    15ab1ce83ea8339aa1e758bfa3df341a99cdc805ef79a52a6497e0190c149dadbe0d7ace43b4d533f99638a0fbb857235e0df1ac082d143b97e7d79c1f4590ce

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_45coj1wy.i2x.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp782D.tmp

    Filesize

    1KB

    MD5

    aa5711747b1e7854f7ce5480f089fbbd

    SHA1

    44ce2a5a354f3c736b3e0a2f74d6b4fea4add924

    SHA256

    fd1b347261f0d59df8608f20a696788e5e6fcd9c03bc4470be77ad73a0916cc0

    SHA512

    140f4f08f2548fb82d42728c1dcd01edf3b90daaf34b970825847cfe0a65fbf5de5ae6aa5479553e304c7400ee1a8e4bb7a34d04b081159fe3df3cd9c0744629

  • memory/1268-67-0x0000000007470000-0x000000000748E000-memory.dmp

    Filesize

    120KB

  • memory/1268-56-0x0000000075A90000-0x0000000075ADC000-memory.dmp

    Filesize

    304KB

  • memory/1268-87-0x0000000007A50000-0x0000000007A5E000-memory.dmp

    Filesize

    56KB

  • memory/1268-82-0x0000000007E60000-0x00000000084DA000-memory.dmp

    Filesize

    6.5MB

  • memory/1268-80-0x00000000076F0000-0x0000000007793000-memory.dmp

    Filesize

    652KB

  • memory/1268-97-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1268-69-0x000000007F1B0000-0x000000007F1C0000-memory.dmp

    Filesize

    64KB

  • memory/1268-36-0x0000000005F80000-0x00000000062D4000-memory.dmp

    Filesize

    3.3MB

  • memory/1268-24-0x0000000005F10000-0x0000000005F76000-memory.dmp

    Filesize

    408KB

  • memory/1268-23-0x0000000002CB0000-0x0000000002CC0000-memory.dmp

    Filesize

    64KB

  • memory/1268-51-0x0000000006590000-0x00000000065DC000-memory.dmp

    Filesize

    304KB

  • memory/1268-48-0x0000000006500000-0x000000000651E000-memory.dmp

    Filesize

    120KB

  • memory/1268-21-0x0000000005E30000-0x0000000005E96000-memory.dmp

    Filesize

    408KB

  • memory/1268-20-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1528-54-0x00000000061C0000-0x00000000061CA000-memory.dmp

    Filesize

    40KB

  • memory/1528-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1528-53-0x0000000006190000-0x00000000061AE000-memory.dmp

    Filesize

    120KB

  • memory/1528-47-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1528-52-0x0000000005990000-0x000000000599A000-memory.dmp

    Filesize

    40KB

  • memory/1528-98-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1528-99-0x00000000053C0000-0x00000000053D0000-memory.dmp

    Filesize

    64KB

  • memory/2704-17-0x0000000004820000-0x0000000004830000-memory.dmp

    Filesize

    64KB

  • memory/2704-89-0x0000000007280000-0x000000000729A000-memory.dmp

    Filesize

    104KB

  • memory/2704-25-0x0000000004820000-0x0000000004830000-memory.dmp

    Filesize

    64KB

  • memory/2704-19-0x0000000004D50000-0x0000000004D72000-memory.dmp

    Filesize

    136KB

  • memory/2704-96-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2704-15-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2704-16-0x0000000004E60000-0x0000000005488000-memory.dmp

    Filesize

    6.2MB

  • memory/2704-55-0x0000000006B80000-0x0000000006BB2000-memory.dmp

    Filesize

    200KB

  • memory/2704-14-0x00000000046D0000-0x0000000004706000-memory.dmp

    Filesize

    216KB

  • memory/2704-68-0x0000000075A90000-0x0000000075ADC000-memory.dmp

    Filesize

    304KB

  • memory/2704-90-0x0000000007260000-0x0000000007268000-memory.dmp

    Filesize

    32KB

  • memory/2704-57-0x000000007FB90000-0x000000007FBA0000-memory.dmp

    Filesize

    64KB

  • memory/2704-88-0x0000000007180000-0x0000000007194000-memory.dmp

    Filesize

    80KB

  • memory/2704-79-0x0000000004820000-0x0000000004830000-memory.dmp

    Filesize

    64KB

  • memory/2704-81-0x0000000004820000-0x0000000004830000-memory.dmp

    Filesize

    64KB

  • memory/2704-86-0x0000000007140000-0x0000000007151000-memory.dmp

    Filesize

    68KB

  • memory/2704-83-0x0000000006F40000-0x0000000006F5A000-memory.dmp

    Filesize

    104KB

  • memory/2704-84-0x0000000006FB0000-0x0000000006FBA000-memory.dmp

    Filesize

    40KB

  • memory/2704-85-0x00000000071C0000-0x0000000007256000-memory.dmp

    Filesize

    600KB

  • memory/2976-7-0x0000000005EA0000-0x0000000005EB4000-memory.dmp

    Filesize

    80KB

  • memory/2976-8-0x00000000098D0000-0x000000000994A000-memory.dmp

    Filesize

    488KB

  • memory/2976-6-0x0000000005E80000-0x0000000005EA0000-memory.dmp

    Filesize

    128KB

  • memory/2976-37-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2976-9-0x000000000C9F0000-0x000000000CA8C000-memory.dmp

    Filesize

    624KB

  • memory/2976-5-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

    Filesize

    40KB

  • memory/2976-4-0x0000000005B40000-0x0000000005B50000-memory.dmp

    Filesize

    64KB

  • memory/2976-3-0x0000000005A30000-0x0000000005AC2000-memory.dmp

    Filesize

    584KB

  • memory/2976-1-0x0000000075230000-0x00000000759E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2976-2-0x0000000005F40000-0x00000000064E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2976-0-0x0000000000FC0000-0x000000000106C000-memory.dmp

    Filesize

    688KB