Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-05-2024 16:18

General

  • Target

    5a4b273af1b4fe1b44e6c75f925d6897_JaffaCakes118.docm

  • Size

    750KB

  • MD5

    5a4b273af1b4fe1b44e6c75f925d6897

  • SHA1

    549df2cb551c0c225750744e8b7039743ae1d4a3

  • SHA256

    9a9b5b78530634c4fb2498e3c3dc577c7cdaf81663af482dd4c1d66b29a950a3

  • SHA512

    badb54a4302402b453f60e3ce16ec5958bf570b16b4c5ce56633be4f307db3abac3a1779d8819a4fcee93c7e19928e42557755829d9a591ca0b35593ab7b490a

  • SSDEEP

    12288:gFY5XwaFZhcZYhQSKCQWP/IkfQxj8Z4+WoGlP/LKr/ZFxX/XusxTXVTKOv2cEfkE:gFY5XwaP+6O/W3It3+WzOzb9TxTXt2LF

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

nikt0x.duckdns.org:2506

Mutex

955434fd-d0b1-4ae0-9e09-1c82ba4be994

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    nikt0x.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2016-03-22T20:42:34.777641836Z

  • 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

    2506

  • default_group

    Nikt0x

  • 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

    955434fd-d0b1-4ae0-9e09-1c82ba4be994

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    nikt0x.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.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 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).

  • Office loads VBA resources, possible macro or embedded object present
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 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\5a4b273af1b4fe1b44e6c75f925d6897_JaffaCakes118.docm"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1784
    • C:\ProgramData\Memsys\ms.exe
      C:\ProgramData\Memsys\ms.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Users\Admin\AppData\Roaming\ms.exe
        "C:\Users\Admin\AppData\Roaming\ms.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:884
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\ms.exe" "Intel(R) Dynamic Platform and Thermal Framework LPM Policy Service Helper" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:1992
        • C:\Users\Admin\AppData\Roaming\ms.exe
          "C:\Users\Admin\AppData\Roaming\ms.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2636
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9CEB.tmp"
            5⤵
            • Creates scheduled task(s)
            PID:2064
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9E53.tmp"
            5⤵
            • Creates scheduled task(s)
            PID:2708
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\ProgramData\Memsys\a.bat" "
        3⤵
          PID:2352
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:2396

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Persistence

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Defense Evasion

      Impair Defenses

      1
      T1562

      Disable or Modify System Firewall

      1
      T1562.004

      Modify Registry

      3
      T1112

      Subvert Trust Controls

      1
      T1553

      Install Root Certificate

      1
      T1553.004

      Discovery

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Memsys\a.bat
        Filesize

        75B

        MD5

        54a9e870598d73cb353695417364a279

        SHA1

        4484df9d02a6bd19a0992e3433ac6379eba539df

        SHA256

        263204da90e26a407f3663003cbe7e7c187bac68e45559e8ae5b77ec4eee4bb5

        SHA512

        6cefce52e623b592a9226bf12bab3c189b735e12be2dbfc8bc6a963b727447ffe5618aa91d468c6760c66dc5248c58295393cd372869ea32b6e8964ff5c6ec0a

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7D266D9E1E69FA1EEFB9699B009B34C8_0A9BFDD75B598C2110CBF610C078E6E6
        Filesize

        5B

        MD5

        5bfa51f3a417b98e7443eca90fc94703

        SHA1

        8c015d80b8a23f780bdd215dc842b0f5551f63bd

        SHA256

        bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

        SHA512

        4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8DFDF057024880D7A081AFBF6D26B92F
        Filesize

        834B

        MD5

        cbed24fd2b55aea95367efca5ee889de

        SHA1

        946f48b5c344fd57113845cd483fed5fb9fa3e54

        SHA256

        1dc8a0fcbe260b77adfe5ad9aaac543239b2a0d9f4e1f3c2657beee4376ffee4

        SHA512

        c504a11ea576f8ce14de26a0617e22e71e14db0f1dadefc187ce94e4a35a83743c743824e3629899c262aae4772bb86a0ee5bb643db20645483f0c376215ec6b

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        Filesize

        68KB

        MD5

        29f65ba8e88c063813cc50a4ea544e93

        SHA1

        05a7040d5c127e68c25d81cc51271ffb8bef3568

        SHA256

        1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

        SHA512

        e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9A19ADAD9D098E039450ABBEDD5616EB_6119572951B55A1528DBDDBA71BE9331
        Filesize

        1KB

        MD5

        686e87c210592645a33182fe9195565f

        SHA1

        20d075763cdefec4c292665e24c13cbf3ddf6685

        SHA256

        816489961fbc8449f5d333a1d580b31f41294ffd7d13ac10c21e2186b00776e9

        SHA512

        143d63f99d45cf0ea08e76fcb2d7809d871b9de08b4924002369648014a8b602124efae3f9ad060b6ad23b8d66b8143812ccbc3b06d3041dda88168fb8f15688

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7D266D9E1E69FA1EEFB9699B009B34C8_0A9BFDD75B598C2110CBF610C078E6E6
        Filesize

        404B

        MD5

        6b7f78d6119c9a29aa1eb53912ddd906

        SHA1

        9458e5b7a4fb2ae2840ca1592f067d92adf9bac3

        SHA256

        795d3d04d288d097cd04849f34bfcbcf96561fbf3a09f6554b0da710cecb33c0

        SHA512

        92b4bff3a8de4ed37f72ed06a4586cb08ca3d046118cc2b7e5fe534aea99071e8e7c3c8ca69d4200bbf3f4e4d462534fc2965e2c5c334990ad2fb76183f55ea9

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8DFDF057024880D7A081AFBF6D26B92F
        Filesize

        188B

        MD5

        e0bf8d51b2e4e202ccec4ee0e7c7a6f3

        SHA1

        d7250b9afb79e5cde562840a12ed61c8f6ec4093

        SHA256

        e29e710db20c28c1a0de461c0af111eaf8e3c7707914e204205ed062c7c9fb89

        SHA512

        0e610e3c6744c45903c729cd71127f85c60df80f94269a936c4a7dbe39afbea376da9eb13f137f74787c1973af477a959da19aa6c66b3a814f710f20673a679a

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        Filesize

        344B

        MD5

        4c2972964c2d15a82f34dbd7e0fba3b6

        SHA1

        f2f9de9d5a8fac03a49da64e52495d16f242115b

        SHA256

        39346a5a0e372dd1fafe9bde28eb90c0b1285c6fc8831e8c73d6a42d3cc9d0ab

        SHA512

        d825e2097195cd703705e6391bbf7a68cab0754cfd0f12e6205af7afc8da3e32c90fcad31f2515282dec42c35e897cd1425024313e1f5c0195c348b54f88dde5

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9A19ADAD9D098E039450ABBEDD5616EB_6119572951B55A1528DBDDBA71BE9331
        Filesize

        398B

        MD5

        f796eaf85da14ac425ffefac6d4f1f28

        SHA1

        6f60ba9fbc01ee4d4d82b4c10c80aa70daac4d8c

        SHA256

        fe1dad0627cb4c056a2df33858a34820706b307e0e0e918142dd15a7afd98e08

        SHA512

        8319b12ca40fca7ea056f28cdc6acf6f21685c2700d28cee31f02f77371826a35f9c377a139f4c1213adb182d4d4a825b3ede8b687c299e5a459e7f8f6d4810d

      • C:\Users\Admin\AppData\Local\Temp\Tar80BB.tmp
        Filesize

        177KB

        MD5

        435a9ac180383f9fa094131b173a2f7b

        SHA1

        76944ea657a9db94f9a4bef38f88c46ed4166983

        SHA256

        67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

        SHA512

        1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

      • C:\Users\Admin\AppData\Local\Temp\tmp9CEB.tmp
        Filesize

        1KB

        MD5

        fcab7067161a94a439132b6a16fc5208

        SHA1

        fb58cc4ecc565014910ce61f6ebb36620803addd

        SHA256

        652eed7d8997a656461abd772b8ed881e00dab8c3b8192b9af658b163132666f

        SHA512

        328ef8c3edbb942eb51e98b7a38f9aa5a8921ad7ed9892c257b4a6834c91c60d92a6aa33a6b2989a54d2b5b16159bdc1bef4edfe16aec0309bba4d609a704ec7

      • C:\Users\Admin\AppData\Local\Temp\tmp9E53.tmp
        Filesize

        1KB

        MD5

        93d357e6194c8eb8d0616a9f592cc4bf

        SHA1

        5cc3a3d95d82cb88f65cb6dc6c188595fa272808

        SHA256

        a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

        SHA512

        4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

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

        20KB

        MD5

        f022ca3a0726ed7ee737798ed49aca73

        SHA1

        ba1d874c33175e0dfb24053bd2f9bb8eccfb16d4

        SHA256

        cde2c236dca7ca4fc7e0967e9cf449599c7a7890b7714eb99dfe202bc72a6d7d

        SHA512

        358fdb7bcd609c8b883321d2dd242f8a100a6374b113229b63cc02db3d5422e918678fa3169d040929331cb0aec08239b52df52e8685e04b37e2d1240eda1757

      • \ProgramData\Memsys\ms.exe
        Filesize

        428KB

        MD5

        67efda72b055eedf05129376a0dc43cf

        SHA1

        6aa4fe0955f9933e5b02b78beb5a86c4a9278c2a

        SHA256

        f9eba713eb33d54ab2c94ef735c1a1bc21897488253f954788f16ab5b2d24b98

        SHA512

        91ee231925cba1ff36a5c97502fd39aec8db5a37a43c08bae369d2a3737b4088a994d620b7397a1d2d239977b08cfbf74d08713f4e98a1422c3b146a145fc8de

      • memory/1784-86-0x00000000050E0000-0x00000000051E0000-memory.dmp
        Filesize

        1024KB

      • memory/1784-99-0x00000000050E0000-0x00000000051E0000-memory.dmp
        Filesize

        1024KB

      • memory/1784-100-0x00000000050E0000-0x00000000051E0000-memory.dmp
        Filesize

        1024KB

      • memory/1784-98-0x00000000050E0000-0x00000000051E0000-memory.dmp
        Filesize

        1024KB

      • memory/1784-53-0x00000000050E0000-0x00000000051E0000-memory.dmp
        Filesize

        1024KB

      • memory/1784-335-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1784-1-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1784-313-0x00000000050E0000-0x00000000051E0000-memory.dmp
        Filesize

        1024KB

      • memory/1784-0-0x000000002F1D1000-0x000000002F1D2000-memory.dmp
        Filesize

        4KB

      • memory/1784-312-0x000000007122D000-0x0000000071238000-memory.dmp
        Filesize

        44KB

      • memory/1784-2-0x000000007122D000-0x0000000071238000-memory.dmp
        Filesize

        44KB

      • memory/2636-302-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2636-290-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2636-292-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2636-298-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2636-299-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/2636-303-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2636-295-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB

      • memory/2636-288-0x0000000000400000-0x000000000043A000-memory.dmp
        Filesize

        232KB