Analysis

  • max time kernel
    31s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 09:41

General

  • Target

    POP.exe

  • Size

    660KB

  • MD5

    46d06b32a50fd0c1a1981695e6504aa5

  • SHA1

    562f1b0f554ab339d851e7c031059d20a1c88af6

  • SHA256

    3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335

  • SHA512

    c6ff00d37a3d8f8716df5a67d5f6e16bec0ec1a5ea4625138651ca8bc43ffda9e4ff77c158803d3399aa7543ec88dd37551215f60e159d226ac307cfd6e4cb44

  • SSDEEP

    12288:nYIPXjeFKYoJyZTH5Zx161j9QMRLPfVtc1qHNanyP8POCxU:nYIPGKYokbF01j9b1tcoMyP8POCy

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

amechi.duckdns.org:4190

Mutex

1e951a16-0899-4a49-9bed-fad9fc6657d1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    amechi.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-02-05T10:09:03.565293536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4190

  • default_group

    clement

  • 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

    1e951a16-0899-4a49-9bed-fad9fc6657d1

  • 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\POP.exe
    "C:\Users\Admin\AppData\Local\Temp\POP.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:224
    • 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\POP.exe"
      2⤵
        PID:2856
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CXAoYUE.exe"
        2⤵
          PID:4560
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CXAoYUE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6973.tmp"
          2⤵
          • Creates scheduled task(s)
          PID:2740
        • C:\Users\Admin\AppData\Local\Temp\POP.exe
          "C:\Users\Admin\AppData\Local\Temp\POP.exe"
          2⤵
            PID:4920
          • C:\Users\Admin\AppData\Local\Temp\POP.exe
            "C:\Users\Admin\AppData\Local\Temp\POP.exe"
            2⤵
              PID:4956
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 1864
              2⤵
              • Program crash
              PID:4980
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 224 -ip 224
            1⤵
              PID:1076
            • 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 --mojo-platform-channel-handle=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
              1⤵
                PID:4664

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                Filesize

                1KB

                MD5

                8ec831f3e3a3f77e4a7b9cd32b48384c

                SHA1

                d83f09fd87c5bd86e045873c231c14836e76a05c

                SHA256

                7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

                SHA512

                26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xhpsocea.gyo.ps1

                Filesize

                60B

                MD5

                d17fe0a3f47be24a6453e9ef58c94641

                SHA1

                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                SHA256

                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                SHA512

                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

              • C:\Users\Admin\AppData\Local\Temp\tmp6973.tmp

                Filesize

                1KB

                MD5

                4f8afa6f3e43a159737763fba31f7ef9

                SHA1

                323b80e909437de3b60aea5b20bf1b90b77a721c

                SHA256

                5f63f21c2acce5c7ed4cfc2825ef510a23d39af2fe0d5ad32385d8d32c2d49f1

                SHA512

                7e77200883a529864505f6f9016549f3cfff2c900278d7b6d540e11ec5652b2ddf08cc8d66be055b836eff4b45d5136d1f80e5371baf467eadebcb9b86927cda

              • memory/224-8-0x000000000A090000-0x000000000A10A000-memory.dmp

                Filesize

                488KB

              • memory/224-10-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/224-5-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

                Filesize

                40KB

              • memory/224-6-0x0000000004F60000-0x0000000004F80000-memory.dmp

                Filesize

                128KB

              • memory/224-7-0x0000000005010000-0x0000000005024000-memory.dmp

                Filesize

                80KB

              • memory/224-3-0x0000000004D20000-0x0000000004DB2000-memory.dmp

                Filesize

                584KB

              • memory/224-9-0x000000000D1B0000-0x000000000D24C000-memory.dmp

                Filesize

                624KB

              • memory/224-4-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

                Filesize

                64KB

              • memory/224-0-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/224-84-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/224-2-0x0000000005230000-0x00000000057D4000-memory.dmp

                Filesize

                5.6MB

              • memory/224-18-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

                Filesize

                64KB

              • memory/224-26-0x000000000DDE0000-0x000000000E134000-memory.dmp

                Filesize

                3.3MB

              • memory/224-1-0x0000000000200000-0x00000000002AC000-memory.dmp

                Filesize

                688KB

              • memory/2856-95-0x00000000073F0000-0x00000000073F8000-memory.dmp

                Filesize

                32KB

              • memory/2856-58-0x00000000023B0000-0x00000000023C0000-memory.dmp

                Filesize

                64KB

              • memory/2856-99-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/2856-14-0x0000000002410000-0x0000000002446000-memory.dmp

                Filesize

                216KB

              • memory/2856-93-0x0000000007310000-0x0000000007324000-memory.dmp

                Filesize

                80KB

              • memory/2856-91-0x00000000023B0000-0x00000000023C0000-memory.dmp

                Filesize

                64KB

              • memory/2856-88-0x0000000007350000-0x00000000073E6000-memory.dmp

                Filesize

                600KB

              • memory/2856-86-0x00000000070D0000-0x00000000070EA000-memory.dmp

                Filesize

                104KB

              • memory/2856-15-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/2856-31-0x00000000056F0000-0x0000000005756000-memory.dmp

                Filesize

                408KB

              • memory/2856-17-0x00000000023B0000-0x00000000023C0000-memory.dmp

                Filesize

                64KB

              • memory/2856-83-0x0000000006FC0000-0x0000000007063000-memory.dmp

                Filesize

                652KB

              • memory/2856-68-0x000000006F900000-0x000000006F94C000-memory.dmp

                Filesize

                304KB

              • memory/2856-60-0x0000000006390000-0x00000000063C2000-memory.dmp

                Filesize

                200KB

              • memory/2856-59-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/2856-56-0x0000000005E00000-0x0000000005E4C000-memory.dmp

                Filesize

                304KB

              • memory/4560-98-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/4560-92-0x00000000072E0000-0x00000000072EE000-memory.dmp

                Filesize

                56KB

              • memory/4560-55-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

                Filesize

                120KB

              • memory/4560-21-0x0000000004F40000-0x0000000005568000-memory.dmp

                Filesize

                6.2MB

              • memory/4560-62-0x000000006F900000-0x000000006F94C000-memory.dmp

                Filesize

                304KB

              • memory/4560-19-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/4560-73-0x0000000006350000-0x000000000636E000-memory.dmp

                Filesize

                120KB

              • memory/4560-94-0x00000000073F0000-0x000000000740A000-memory.dmp

                Filesize

                104KB

              • memory/4560-30-0x0000000005620000-0x0000000005686000-memory.dmp

                Filesize

                408KB

              • memory/4560-85-0x00000000076F0000-0x0000000007D6A000-memory.dmp

                Filesize

                6.5MB

              • memory/4560-20-0x00000000024F0000-0x0000000002500000-memory.dmp

                Filesize

                64KB

              • memory/4560-87-0x0000000007120000-0x000000000712A000-memory.dmp

                Filesize

                40KB

              • memory/4560-89-0x0000000007330000-0x00000000073C6000-memory.dmp

                Filesize

                600KB

              • memory/4560-57-0x00000000024F0000-0x0000000002500000-memory.dmp

                Filesize

                64KB

              • memory/4560-90-0x00000000072B0000-0x00000000072C1000-memory.dmp

                Filesize

                68KB

              • memory/4560-28-0x0000000004DC0000-0x0000000004DE2000-memory.dmp

                Filesize

                136KB

              • memory/4956-29-0x0000000005220000-0x0000000005230000-memory.dmp

                Filesize

                64KB

              • memory/4956-105-0x00000000067D0000-0x00000000067DE000-memory.dmp

                Filesize

                56KB

              • memory/4956-52-0x0000000005010000-0x000000000501A000-memory.dmp

                Filesize

                40KB

              • memory/4956-53-0x0000000005200000-0x000000000521E000-memory.dmp

                Filesize

                120KB

              • memory/4956-54-0x0000000005DB0000-0x0000000005DBA000-memory.dmp

                Filesize

                40KB

              • memory/4956-23-0x0000000000400000-0x0000000000438000-memory.dmp

                Filesize

                224KB

              • memory/4956-100-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/4956-101-0x0000000005220000-0x0000000005230000-memory.dmp

                Filesize

                64KB

              • memory/4956-103-0x0000000006790000-0x00000000067A2000-memory.dmp

                Filesize

                72KB

              • memory/4956-27-0x0000000075120000-0x00000000758D0000-memory.dmp

                Filesize

                7.7MB

              • memory/4956-113-0x0000000006870000-0x000000000689E000-memory.dmp

                Filesize

                184KB

              • memory/4956-112-0x0000000006860000-0x000000000686E000-memory.dmp

                Filesize

                56KB

              • memory/4956-111-0x0000000006840000-0x0000000006854000-memory.dmp

                Filesize

                80KB

              • memory/4956-110-0x0000000006820000-0x0000000006830000-memory.dmp

                Filesize

                64KB

              • memory/4956-109-0x0000000006810000-0x0000000006824000-memory.dmp

                Filesize

                80KB

              • memory/4956-108-0x0000000006800000-0x000000000680E000-memory.dmp

                Filesize

                56KB

              • memory/4956-107-0x00000000067F0000-0x00000000067FC000-memory.dmp

                Filesize

                48KB

              • memory/4956-106-0x00000000067E0000-0x00000000067F2000-memory.dmp

                Filesize

                72KB

              • memory/4956-104-0x00000000067A0000-0x00000000067BA000-memory.dmp

                Filesize

                104KB