Analysis

  • max time kernel
    272s
  • max time network
    303s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12-08-2024 05:05

General

  • Target

    91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe

  • Size

    384KB

  • MD5

    27aa8ad8930fa0d076510cfb6573ce74

  • SHA1

    26da6ec9efcd8b95c2d744373532afd12d26bf8f

  • SHA256

    91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d

  • SHA512

    bb1af7c9caf9d05e6bf2ebf3ff8fbada74c0e4fbac04759428da3766110b66a8966081b22c0ffc4dc3a141a0914e552a6fc0a766c037c438546e8d4124f5922f

  • SSDEEP

    6144:6JHf/OboJwboxHcE2Heo6e+qFCKs7cDZGrBKdt7cWZGbpYByPT7lyvIcbSIvF68U:c3VwboxHc8o6epUVKd9cWvByPHly5WIl

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

blackangel.hopto.org:54984

Mutex

f71cda30-fa3d-4402-acaf-cf2c8c816f12

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    blackangel.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-04-20T19:45:18.703376436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • default_group

    Default

  • 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

    f71cda30-fa3d-4402-acaf-cf2c8c816f12

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    blackangel.hopto.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.

  • Executes dropped EXE 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 36 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 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe
    "C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe
      "C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.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
      PID:600
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4756
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2748
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4552
  • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:812
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2716
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4476
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4472
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1348
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4152
  • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3288
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5100
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4728
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4652
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2008
  • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4564
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5060
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2168
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5040
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3872
  • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    PID:3576
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3380
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1384
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4088
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4540
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4116
  • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    PID:68
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4000
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:828
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2608
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:652
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    520B

    MD5

    807cb75397a3a9fc38e9fb5f8566eb2d

    SHA1

    367e151fab5a5a80e60202d287ae522ea53e2563

    SHA256

    3e5056b73303b361e6b7b52f5edb2ed1a7e9dc2c762bb91d18046f42bc2ffcf3

    SHA512

    49efef0401ba0e0dc0b30bdff5d414da5494e4194c6269da2cb40b1ab7dc53e7858d29d2b9982bf3ee60ebc9638b5ed2b5ddcbb536bcc57729e79fc81f59f13d

  • C:\Users\Admin\AppData\Roaming\Microsoft\microsoft.exe

    Filesize

    384KB

    MD5

    27aa8ad8930fa0d076510cfb6573ce74

    SHA1

    26da6ec9efcd8b95c2d744373532afd12d26bf8f

    SHA256

    91dc640360851a1e69261fe72d9fa570a73e6d9465c8ebf971dbe840493b890d

    SHA512

    bb1af7c9caf9d05e6bf2ebf3ff8fbada74c0e4fbac04759428da3766110b66a8966081b22c0ffc4dc3a141a0914e552a6fc0a766c037c438546e8d4124f5922f

  • memory/600-21-0x0000000005F60000-0x0000000005F72000-memory.dmp

    Filesize

    72KB

  • memory/600-35-0x00000000731A0000-0x000000007388E000-memory.dmp

    Filesize

    6.9MB

  • memory/600-4-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/600-5-0x00000000051B0000-0x0000000005242000-memory.dmp

    Filesize

    584KB

  • memory/600-6-0x00000000731A0000-0x000000007388E000-memory.dmp

    Filesize

    6.9MB

  • memory/600-7-0x0000000005250000-0x00000000052EC000-memory.dmp

    Filesize

    624KB

  • memory/600-8-0x0000000005170000-0x000000000517A000-memory.dmp

    Filesize

    40KB

  • memory/600-9-0x00000000731A0000-0x000000007388E000-memory.dmp

    Filesize

    6.9MB

  • memory/600-12-0x00000000053E0000-0x00000000053EA000-memory.dmp

    Filesize

    40KB

  • memory/600-13-0x00000000057E0000-0x00000000057FE000-memory.dmp

    Filesize

    120KB

  • memory/600-16-0x0000000005E50000-0x0000000005E5A000-memory.dmp

    Filesize

    40KB

  • memory/600-22-0x00000000066C0000-0x00000000066DA000-memory.dmp

    Filesize

    104KB

  • memory/600-34-0x00000000731A0000-0x000000007388E000-memory.dmp

    Filesize

    6.9MB

  • memory/600-32-0x0000000006AD0000-0x0000000006B36000-memory.dmp

    Filesize

    408KB

  • memory/600-27-0x0000000006740000-0x0000000006750000-memory.dmp

    Filesize

    64KB

  • memory/600-25-0x0000000006720000-0x000000000672C000-memory.dmp

    Filesize

    48KB

  • memory/600-26-0x0000000006730000-0x0000000006744000-memory.dmp

    Filesize

    80KB

  • memory/600-24-0x0000000006710000-0x000000000671E000-memory.dmp

    Filesize

    56KB

  • memory/600-23-0x0000000006700000-0x000000000670E000-memory.dmp

    Filesize

    56KB

  • memory/600-28-0x0000000006750000-0x0000000006764000-memory.dmp

    Filesize

    80KB

  • memory/600-29-0x0000000006760000-0x000000000676E000-memory.dmp

    Filesize

    56KB

  • memory/600-30-0x0000000006780000-0x00000000067AE000-memory.dmp

    Filesize

    184KB

  • memory/600-31-0x00000000067C0000-0x00000000067D4000-memory.dmp

    Filesize

    80KB

  • memory/4768-3-0x00000000731A0000-0x000000007388E000-memory.dmp

    Filesize

    6.9MB

  • memory/4768-1-0x0000000000960000-0x00000000009C6000-memory.dmp

    Filesize

    408KB

  • memory/4768-18-0x00000000731A0000-0x000000007388E000-memory.dmp

    Filesize

    6.9MB

  • memory/4768-2-0x0000000005720000-0x0000000005C1E000-memory.dmp

    Filesize

    5.0MB

  • memory/4768-0-0x00000000731AE000-0x00000000731AF000-memory.dmp

    Filesize

    4KB