Analysis

  • max time kernel
    121s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 10:34

General

  • Target

    IBAN for SWIFT.rtf

  • Size

    725KB

  • MD5

    fe46a6ba34a922c039c28678872177b4

  • SHA1

    29c4422252ae39409c4396a38ce2203e7cb060db

  • SHA256

    d9e24d334fecee03e1da9c981510cfad9f144c62088a6321b557619f7d5dfc18

  • SHA512

    3ea5e8038015cae338054624a43f9ef5b9d2101a1d85356cde7d0ef0d18b18a6166fb2292593c0505fd89b81c45dbfb7d44c8117cbe5c46d9ec5ddfa3e4f9496

  • SSDEEP

    6144:OwAYwAYwAXf6F0DeapmgknQbW9aoMaQRH3yCd3Lqc:6

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

pnauco5.ddns.net:1664

Mutex

eb1d64e5-aaff-4fba-ba9c-c06fefd3c3fb

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    pnauco5.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-06-22T21:33:04.863019036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    CAT

  • 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

    eb1d64e5-aaff-4fba-ba9c-c06fefd3c3fb

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    pnauco5.ddns.net

  • 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.

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\IBAN for SWIFT.rtf"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2624
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Users\Admin\AppData\Roaming\catat556529.exe
        "C:\Users\Admin\AppData\Roaming\catat556529.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\catat556529.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1064
        • C:\Users\Admin\AppData\Roaming\catat556529.exe
          "C:\Users\Admin\AppData\Roaming\catat556529.exe"
          3⤵
          • Executes dropped EXE
          PID:676
        • C:\Users\Admin\AppData\Roaming\catat556529.exe
          "C:\Users\Admin\AppData\Roaming\catat556529.exe"
          3⤵
          • Executes dropped EXE
          PID:1792
        • C:\Users\Admin\AppData\Roaming\catat556529.exe
          "C:\Users\Admin\AppData\Roaming\catat556529.exe"
          3⤵
          • Executes dropped EXE
          • 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
          • Suspicious use of WriteProcessMemory
          PID:1108
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "UDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF7E6.tmp"
            4⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1192
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "UDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF854.tmp"
            4⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2128

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpF7E6.tmp

      Filesize

      1KB

      MD5

      951d0024fbd20ba001be2472e94b14f9

      SHA1

      7eece72e8ac47ecf74a90c02b10e2bd3e533d8c3

      SHA256

      63a40a9230307008f4417015555e307f59c2879e7f07b2128c7865cc5aea6498

      SHA512

      1ee0508dbba3bb13c77377ba0a47f42f4a3d37d80341ed3ed4de17ebae50dbc4003828ecf472b52172b665eb42d33239ff320757788056c8809ad21b5c414e18

    • C:\Users\Admin\AppData\Local\Temp\tmpF854.tmp

      Filesize

      1KB

      MD5

      c1c4b266e129249076bbe8a15cc5e06c

      SHA1

      312b8173c264245c834eee91e05dcca845c341f8

      SHA256

      f336d06dcadca621be6b2dc9493dcb84d871497e65142bc9fdd72c9f250a1b7b

      SHA512

      0f02ec7700f89d95d29014eec42d13c85234351c3fe1dc6a3efeea52ea76ca4bea3151567a6c798b5ce658d481b424646b43d93e95ccad897356a87a25d45041

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      19KB

      MD5

      3c4d4fafcdc9c94ec9e6b183c55dcc8e

      SHA1

      3c67ba341c9e52449a84d8a83671a3e4a9a4fe67

      SHA256

      c7df42e9f521d7e7e0ed645cec3bb383620f9418763b0ca4e235c2cd99b815f9

      SHA512

      20eabb25c1dc0bfdb9f4829310e5f53b0fcdc60875c919567b81417c6642fdc490f1fb035c13d7d6f5d9d12a8bbe24dc8b73820766d8d522dd3462e4b480c6c8

    • \Users\Admin\AppData\Roaming\catat556529.exe

      Filesize

      586KB

      MD5

      c57605f42ee1a9bca80cbbc689d2999e

      SHA1

      538b4237b1fc2305a2bdf843417c0ba2c73d4599

      SHA256

      a50cfb5151a5a5f566c33e17333df9c56d052ff2a0b4b41732ed8dd50b306e9a

      SHA512

      9200ebea30dab0769baf9e4ad64ddd63c8905d6253d90313403cfeec407b42553d32987fc1d1db4b19445ac9bfb51fd91f0ea9ad1236e432624d4a9b09932af1

    • memory/1108-20-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-44-0x0000000000520000-0x000000000053E000-memory.dmp

      Filesize

      120KB

    • memory/1108-59-0x0000000001F90000-0x0000000001FA4000-memory.dmp

      Filesize

      80KB

    • memory/1108-58-0x0000000002280000-0x00000000022AE000-memory.dmp

      Filesize

      184KB

    • memory/1108-57-0x0000000001F30000-0x0000000001F3E000-memory.dmp

      Filesize

      56KB

    • memory/1108-31-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-33-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-26-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-25-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-22-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-29-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/1108-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1108-56-0x0000000001F20000-0x0000000001F34000-memory.dmp

      Filesize

      80KB

    • memory/1108-55-0x0000000000B00000-0x0000000000B10000-memory.dmp

      Filesize

      64KB

    • memory/1108-43-0x00000000003F0000-0x00000000003FA000-memory.dmp

      Filesize

      40KB

    • memory/1108-54-0x0000000000AF0000-0x0000000000B04000-memory.dmp

      Filesize

      80KB

    • memory/1108-45-0x0000000000580000-0x000000000058A000-memory.dmp

      Filesize

      40KB

    • memory/1108-48-0x00000000005C0000-0x00000000005D2000-memory.dmp

      Filesize

      72KB

    • memory/1108-49-0x00000000005D0000-0x00000000005EA000-memory.dmp

      Filesize

      104KB

    • memory/1108-50-0x0000000000810000-0x000000000081E000-memory.dmp

      Filesize

      56KB

    • memory/1108-51-0x0000000000830000-0x0000000000842000-memory.dmp

      Filesize

      72KB

    • memory/1108-52-0x0000000000AD0000-0x0000000000ADC000-memory.dmp

      Filesize

      48KB

    • memory/1108-53-0x0000000000AE0000-0x0000000000AEE000-memory.dmp

      Filesize

      56KB

    • memory/2012-2-0x000000007136D000-0x0000000071378000-memory.dmp

      Filesize

      44KB

    • memory/2012-0-0x000000002F781000-0x000000002F782000-memory.dmp

      Filesize

      4KB

    • memory/2012-16-0x000000007136D000-0x0000000071378000-memory.dmp

      Filesize

      44KB

    • memory/2012-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2012-81-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2860-15-0x00000000005E0000-0x00000000005EE000-memory.dmp

      Filesize

      56KB

    • memory/2860-14-0x00000000000F0000-0x0000000000186000-memory.dmp

      Filesize

      600KB

    • memory/2860-17-0x00000000052C0000-0x000000000533A000-memory.dmp

      Filesize

      488KB