Overview

overview

10

Static

static

44F5604166...BC.exe

windows7-x64

10

44F5604166...BC.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2022, 00:02

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General

  • Target
    44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
  • Size 1.0MB
  • Sample221112-abftfsfe41
  • SHA256 44f56041661e3ed0fca71e935974d180786cbdcb680bc99b932bb712a0bc40cd
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • cbswgc.duckdns.org:4842

  • fbpa.duckdns.org:4842

Mutex

  • 606c315b-72e0-4c9b-b5a8-99f554cc90bf

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    fbpa.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-07-13T13:49:25.467812636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4842

  • default_group

    *CASH*

  • 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

    606c315b-72e0-4c9b-b5a8-99f554cc90bf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    cbswgc.duckdns.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Checks computer location settings 2 TTPs 13 IoCs

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

  • Drops startup file 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 13 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
    "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\choice.exe
        choice /C Y /N /D Y /T 3
        3⤵
          PID:4312
      • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
        "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
        2⤵
        • Checks computer location settings
        • Drops startup file
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:228
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
            PID:4940
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4332
            • C:\Windows\SysWOW64\choice.exe
              choice /C Y /N /D Y /T 3
              4⤵
                PID:4400
            • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
              "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
              3⤵
              • Checks computer location settings
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1644
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                4⤵
                  PID:4880
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1360
                  • C:\Windows\SysWOW64\choice.exe
                    choice /C Y /N /D Y /T 3
                    5⤵
                      PID:4652
                  • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                    "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                    4⤵
                    • Checks computer location settings
                    • Suspicious use of SetThreadContext
                    • Suspicious behavior: MapViewOfSection
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:4360
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      5⤵
                        PID:5084
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                        5⤵
                          PID:4492
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                          5⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3228
                          • C:\Windows\SysWOW64\choice.exe
                            choice /C Y /N /D Y /T 3
                            6⤵
                              PID:3196
                          • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                            "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                            5⤵
                            • Checks computer location settings
                            • Suspicious use of SetThreadContext
                            • Suspicious behavior: MapViewOfSection
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:2976
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                              6⤵
                                PID:3616
                              • C:\Windows\SysWOW64\cmd.exe
                                "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                6⤵
                                • Suspicious use of WriteProcessMemory
                                PID:3140
                                • C:\Windows\SysWOW64\choice.exe
                                  choice /C Y /N /D Y /T 3
                                  7⤵
                                    PID:4000
                                • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                  "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                  6⤵
                                  • Checks computer location settings
                                  • Suspicious use of SetThreadContext
                                  • Suspicious behavior: MapViewOfSection
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:3632
                                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                    7⤵
                                      PID:1460
                                    • C:\Windows\SysWOW64\cmd.exe
                                      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                      7⤵
                                        PID:2696
                                        • C:\Windows\SysWOW64\choice.exe
                                          choice /C Y /N /D Y /T 3
                                          8⤵
                                            PID:1400
                                        • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                          "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                          7⤵
                                          • Checks computer location settings
                                          • Suspicious use of SetThreadContext
                                          • Suspicious behavior: MapViewOfSection
                                          • Suspicious use of AdjustPrivilegeToken
                                          PID:3124
                                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                            8⤵
                                              PID:3472
                                            • C:\Windows\SysWOW64\cmd.exe
                                              "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                              8⤵
                                                PID:1364
                                                • C:\Windows\SysWOW64\choice.exe
                                                  choice /C Y /N /D Y /T 3
                                                  9⤵
                                                    PID:1304
                                                • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                  "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                  8⤵
                                                  • Checks computer location settings
                                                  • Suspicious use of SetThreadContext
                                                  • Suspicious behavior: MapViewOfSection
                                                  • Suspicious use of AdjustPrivilegeToken
                                                  PID:3496
                                                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                                    9⤵
                                                      PID:664
                                                    • C:\Windows\SysWOW64\cmd.exe
                                                      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                      9⤵
                                                        PID:4080
                                                        • C:\Windows\SysWOW64\choice.exe
                                                          choice /C Y /N /D Y /T 3
                                                          10⤵
                                                            PID:4328
                                                        • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                          "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                          9⤵
                                                          • Checks computer location settings
                                                          • Suspicious use of SetThreadContext
                                                          • Suspicious behavior: MapViewOfSection
                                                          • Suspicious use of AdjustPrivilegeToken
                                                          PID:1372
                                                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                                            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                                            10⤵
                                                              PID:3428
                                                            • C:\Windows\SysWOW64\cmd.exe
                                                              "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                              10⤵
                                                                PID:360
                                                                • C:\Windows\SysWOW64\choice.exe
                                                                  choice /C Y /N /D Y /T 3
                                                                  11⤵
                                                                    PID:4840
                                                                • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                                  "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                  10⤵
                                                                  • Checks computer location settings
                                                                  • Suspicious use of SetThreadContext
                                                                  • Suspicious behavior: MapViewOfSection
                                                                  • Suspicious use of AdjustPrivilegeToken
                                                                  PID:4564
                                                                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                                                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                                                    11⤵
                                                                      PID:4732
                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                      11⤵
                                                                        PID:3596
                                                                        • C:\Windows\SysWOW64\choice.exe
                                                                          choice /C Y /N /D Y /T 3
                                                                          12⤵
                                                                            PID:1940
                                                                        • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                                          "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                          11⤵
                                                                          • Checks computer location settings
                                                                          • Suspicious use of SetThreadContext
                                                                          • Suspicious behavior: MapViewOfSection
                                                                          • Suspicious use of AdjustPrivilegeToken
                                                                          PID:3384
                                                                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                                                            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                                                            12⤵
                                                                              PID:64
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                              12⤵
                                                                                PID:308
                                                                                • C:\Windows\SysWOW64\choice.exe
                                                                                  choice /C Y /N /D Y /T 3
                                                                                  13⤵
                                                                                    PID:1880
                                                                                • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                                                  "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                                  12⤵
                                                                                  • Checks computer location settings
                                                                                  • Suspicious use of SetThreadContext
                                                                                  • Suspicious behavior: MapViewOfSection
                                                                                  • Suspicious use of AdjustPrivilegeToken
                                                                                  PID:3252
                                                                                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                                                                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                                                                    13⤵
                                                                                      PID:4996
                                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                                      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                                      13⤵
                                                                                        PID:1172
                                                                                        • C:\Windows\SysWOW64\choice.exe
                                                                                          choice /C Y /N /D Y /T 3
                                                                                          14⤵
                                                                                            PID:4956
                                                                                        • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                                                          "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                                          13⤵
                                                                                          • Checks computer location settings
                                                                                          • Suspicious use of SetThreadContext
                                                                                          • Suspicious behavior: MapViewOfSection
                                                                                          • Suspicious use of AdjustPrivilegeToken
                                                                                          PID:2036
                                                                                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                                                                            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                                                                            14⤵
                                                                                              PID:5096
                                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                                              "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                                              14⤵
                                                                                                PID:1260
                                                                                                • C:\Windows\SysWOW64\choice.exe
                                                                                                  choice /C Y /N /D Y /T 3
                                                                                                  15⤵
                                                                                                    PID:3740
                                                                                                • C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe
                                                                                                  "C:\Users\Admin\AppData\Local\Temp\44F56041661E3ED0FCA71E935974D180786CBDCB680BC.exe"
                                                                                                  14⤵
                                                                                                    PID:3900

                                                                        Network

                                                                              MITRE ATT&CK Enterprise v6

                                                                              Replay Monitor

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                                                                              Downloads

                                                                              RegAsm.exe.log
                                                                              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegAsm.exe.log
                                                                              • Size 1KB
                                                                              • SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
                                                                              • MD5 SHA1 SHA512
                                                                              Submit Download

                                                                              HJdyTuap.exe
                                                                              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HJdyTuap.exe
                                                                              • Size 1.0MB
                                                                              • SHA256 480244b95f476900b8e3dd68f817545ae81cee4f154159085a470f8e9af545a3
                                                                              • MD5 SHA1 SHA512 SSDEEP
                                                                              Submit Download

                                                                              memory/1648-137-0x00000000055C0000-0x0000000005652000-memory.dmp
                                                                              Download

                                                                              memory/1648-135-0x0000000000400000-0x0000000000438000-memory.dmp
                                                                              Download

                                                                              memory/1648-136-0x0000000005B70000-0x0000000006114000-memory.dmp
                                                                              Download

                                                                              memory/1648-142-0x0000000005540000-0x000000000554A000-memory.dmp
                                                                              Download

                                                                              memory/1648-138-0x0000000005660000-0x00000000056FC000-memory.dmp
                                                                              Download

                                                                              memory/4760-132-0x0000000000E90000-0x0000000000F96000-memory.dmp
                                                                              Download

                                                                              memory/4760-133-0x0000000005880000-0x0000000005883000-memory.dmp
                                                                              Download

                                                                              memory/4760-140-0x0000000005A00000-0x0000000005A03000-memory.dmp
                                                                              Download