Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-08-2024 16:08

General

  • Target

    7f9aa775940381e2a8b5e1a017846ee0N.exe

  • Size

    383KB

  • MD5

    7f9aa775940381e2a8b5e1a017846ee0

  • SHA1

    256b071b127b777a95b4907a9fb2ec0c0371e34a

  • SHA256

    533109bf067252ca28781272c5a9203740b0670769bd06d92a35c7845c467e92

  • SHA512

    d703f4103eb8a1902cb04962429a15454443991fa18949efc0f2ef5da426259aa297a5e0e4661e4116effb3b7e65f30e4b88e02dc5919cef6224e5ff4dc2a0cf

  • SSDEEP

    6144:nZUJwboxHcE2Heo6e+qFCKs7cDZGrBKdt7cqNLoEjqZ4TZg/b0ZGbpYByPT7lyvM:mwboxHc8o6epUVKd9cqeIvByPHly5lIl

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 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 18 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 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\7f9aa775940381e2a8b5e1a017846ee0N.exe
    "C:\Users\Admin\AppData\Local\Temp\7f9aa775940381e2a8b5e1a017846ee0N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Users\Admin\AppData\Local\Temp\7f9aa775940381e2a8b5e1a017846ee0N.exe
      "C:\Users\Admin\AppData\Local\Temp\7f9aa775940381e2a8b5e1a017846ee0N.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:2352
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2636
    • 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:2288
      • 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:2672
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\7f9aa775940381e2a8b5e1a017846ee0N.exe" "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2792
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B5CD39C9-3A59-4331-A4A3-32B5624BB317} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2100
      • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
        "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:992
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1072
      • 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
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1944
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1656
      • 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"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2776
    • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2116
      • C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe
        "C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2148
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\microsoft"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1112
      • 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
        3⤵
        • System Location Discovery: System Language Discovery
        PID:872
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\microsoft\microsoft.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1628
      • 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"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    383KB

    MD5

    7f9aa775940381e2a8b5e1a017846ee0

    SHA1

    256b071b127b777a95b4907a9fb2ec0c0371e34a

    SHA256

    533109bf067252ca28781272c5a9203740b0670769bd06d92a35c7845c467e92

    SHA512

    d703f4103eb8a1902cb04962429a15454443991fa18949efc0f2ef5da426259aa297a5e0e4661e4116effb3b7e65f30e4b88e02dc5919cef6224e5ff4dc2a0cf

  • memory/992-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/992-60-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/992-57-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1488-21-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/1488-1-0x0000000000290000-0x00000000002F6000-memory.dmp

    Filesize

    408KB

  • memory/1488-0-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

    Filesize

    4KB

  • memory/1488-27-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-48-0x0000000000930000-0x0000000000996000-memory.dmp

    Filesize

    408KB

  • memory/2116-63-0x0000000000D30000-0x0000000000D96000-memory.dmp

    Filesize

    408KB

  • memory/2148-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2352-34-0x0000000000900000-0x000000000091A000-memory.dmp

    Filesize

    104KB

  • memory/2352-40-0x0000000002120000-0x0000000002134000-memory.dmp

    Filesize

    80KB

  • memory/2352-2-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-28-0x00000000003C0000-0x00000000003CA000-memory.dmp

    Filesize

    40KB

  • memory/2352-29-0x0000000000570000-0x000000000058E000-memory.dmp

    Filesize

    120KB

  • memory/2352-30-0x00000000003D0000-0x00000000003DA000-memory.dmp

    Filesize

    40KB

  • memory/2352-33-0x00000000006E0000-0x00000000006F2000-memory.dmp

    Filesize

    72KB

  • memory/2352-4-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-35-0x0000000001FC0000-0x0000000001FCE000-memory.dmp

    Filesize

    56KB

  • memory/2352-36-0x0000000001FE0000-0x0000000001FEE000-memory.dmp

    Filesize

    56KB

  • memory/2352-37-0x0000000001FF0000-0x0000000001FFC000-memory.dmp

    Filesize

    48KB

  • memory/2352-38-0x0000000002100000-0x0000000002114000-memory.dmp

    Filesize

    80KB

  • memory/2352-39-0x0000000002110000-0x0000000002120000-memory.dmp

    Filesize

    64KB

  • memory/2352-22-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/2352-41-0x0000000002130000-0x000000000213E000-memory.dmp

    Filesize

    56KB

  • memory/2352-42-0x00000000022F0000-0x000000000231E000-memory.dmp

    Filesize

    184KB

  • memory/2352-43-0x0000000002150000-0x0000000002164000-memory.dmp

    Filesize

    80KB

  • memory/2352-45-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/2352-8-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2352-12-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-13-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-20-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-17-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB

  • memory/2352-6-0x0000000000080000-0x00000000000B8000-memory.dmp

    Filesize

    224KB