Analysis

  • max time kernel
    153s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 15:02

General

  • Target

    Fortnite.exe

  • Size

    77.7MB

  • MD5

    97178a64f9575409687576147522c8d5

  • SHA1

    cff8a2ed89c63e6151826d7f702a3bf6aab383a8

  • SHA256

    6348a47d7e11f5d770e81795494e91620e32f531751bc29670f557ff1524422c

  • SHA512

    843df4051021cc7a9a670cd7154c1340c65eca5a636b2fc9de82c777e1a96f28e11a894315ad13bfd90eee186192df74daab1e7b65ccc39cd8e674eb7e99604d

  • SSDEEP

    1572864:Rx1lLW/10hSk8IpG7V+VPhqqxE7LlhpBB8iYweyJulZUdgP7Ul+aswzteN:H1B+uSkB05awqeLpnNpur741teN

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 14 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Fortnite.exe
    "C:\Users\Admin\AppData\Local\Temp\Fortnite.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2320
    • \??\c:\users\admin\appdata\local\temp\fortnite.exe 
      c:\users\admin\appdata\local\temp\fortnite.exe 
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2024
      • \??\c:\users\admin\appdata\local\temp\fortnite.exe 
        c:\users\admin\appdata\local\temp\fortnite.exe 
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2080
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2728
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2004
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:960
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Loads dropped DLL
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2460
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:608
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 15:05 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1984
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 15:06 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:3036
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 15:07 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:2864
        • C:\Windows\Explorer.exe
          C:\Windows\Explorer.exe
          4⤵
            PID:3068

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\api-ms-win-core-file-l1-2-0.dll

      Filesize

      21KB

      MD5

      1c58526d681efe507deb8f1935c75487

      SHA1

      0e6d328faf3563f2aae029bc5f2272fb7a742672

      SHA256

      ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

      SHA512

      8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\api-ms-win-core-file-l2-1-0.dll

      Filesize

      18KB

      MD5

      bfffa7117fd9b1622c66d949bac3f1d7

      SHA1

      402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

      SHA256

      1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

      SHA512

      b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\api-ms-win-core-localization-l1-2-0.dll

      Filesize

      21KB

      MD5

      724223109e49cb01d61d63a8be926b8f

      SHA1

      072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

      SHA256

      4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

      SHA512

      19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\api-ms-win-core-processthreads-l1-1-1.dll

      Filesize

      21KB

      MD5

      517eb9e2cb671ae49f99173d7f7ce43f

      SHA1

      4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

      SHA256

      57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

      SHA512

      492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\api-ms-win-core-timezone-l1-1-0.dll

      Filesize

      21KB

      MD5

      d12403ee11359259ba2b0706e5e5111c

      SHA1

      03cc7827a30fd1dee38665c0cc993b4b533ac138

      SHA256

      f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

      SHA512

      9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\python312.dll

      Filesize

      1.7MB

      MD5

      71070618402c15a2fad5ca70c9ef7297

      SHA1

      34fedbf17a57010c5cd20ef4e690616859cc8e68

      SHA256

      7d35a191edb95ccd85ef05d645deeca3ed1febd9acd659569fab56ae06c1ebdf

      SHA512

      81ef8749f5c3dbd586ddbbcf26cd6c80607a5cc9c26e31c912f454ca56013082174e2012a507739ec1e9c5a2f019bf0ca6bd3ce18880abdbff0ba5f8f3cbbf28

    • C:\Users\Admin\AppData\Local\Temp\_MEI20242\ucrtbase.dll

      Filesize

      992KB

      MD5

      0e0bac3d1dcc1833eae4e3e4cf83c4ef

      SHA1

      4189f4459c54e69c6d3155a82524bda7549a75a6

      SHA256

      8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

      SHA512

      a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      135KB

      MD5

      892a295c4dbc51084408080c82093358

      SHA1

      02ac29eb116fa8c7cb718d3a6da1d489faa121f4

      SHA256

      523f0f9ed48a156277376c02ceaeebcb8eafe4683bc9cd36418737b6a21632ab

      SHA512

      86ccc577a1c201a7d55dd89d6f2a8de96004c44e6c963c709913e3025d3403382a4fdd48b721dfac2fd3cf2170ae73bc183b195701f49d2314df05995ec91a5f

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      135KB

      MD5

      44f56a4a9d1e93c2760509aee6cb5baa

      SHA1

      5caa44c015e77b68a1222c31e40f0c959b2cc052

      SHA256

      33d51aba7046aba69f302d4a64d66ac974255968e8897d82d6b07e97ed0f1038

      SHA512

      4d7f8a4d7d41564ebf7d465d88d28986d6eb6dd636a10e6fbe6e36c592079971969fece564147c645a3fffaad57ddc3a3ab026c736adc5d0cc4f97df860fb04c

    • \Windows\Resources\Themes\icsys.icn.exe

      Filesize

      135KB

      MD5

      af83eb64944dab17b4cc120961890257

      SHA1

      026e472a982a5d57afd0f416c5829226b3520288

      SHA256

      8e74ea8bfe7983543665da2b4ee61d67b07806343f500d1536aa447eb563292e

      SHA512

      d5125abb2c9ecb211864c911b3c0939c75a68a53577d08d7db1cfb9e4d87bdcb6dca0a99fd0cec19b0a3cfe811bbba07071f699d95499872654c1d819d5d39d1

    • \Windows\Resources\svchost.exe

      Filesize

      135KB

      MD5

      7c90a628141519b385a30328e838f34e

      SHA1

      3dee213e53e0e1b08e9c138f657aa165107922c5

      SHA256

      a054774c6b319c9dbb5cee3bfddbcd8153c13f843e320835e1f620acab3d96ea

      SHA512

      ba7345a8734dc38ff775b4d42968a4c5b197334c0afa6c7a848fd7dc5602dbed94c3d12bb9165f13017eab81eed65d4fcf0b8b9c44013afe6886cee16050322f

    • memory/608-1382-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/960-1383-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2004-2688-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2080-1343-0x000007FEF63F0000-0x000007FEF6AB5000-memory.dmp

      Filesize

      6.8MB

    • memory/2080-1386-0x000007FEF63F0000-0x000007FEF6AB5000-memory.dmp

      Filesize

      6.8MB

    • memory/2320-0-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2320-1385-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2320-1323-0x0000000000340000-0x000000000035F000-memory.dmp

      Filesize

      124KB

    • memory/2460-1378-0x00000000003E0000-0x00000000003FF000-memory.dmp

      Filesize

      124KB

    • memory/2460-2689-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2728-1348-0x0000000000280000-0x000000000029F000-memory.dmp

      Filesize

      124KB

    • memory/2728-1384-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB