Analysis

  • max time kernel
    8s
  • max time network
    9s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/06/2024, 09:12

Errors

Reason
Machine shutdown

General

  • Target
    FoxCore.exe
  • Size 99.6MB
  • Sample240608-k59czabe85
  • SHA256 01d439a600deb305a2102e1253b549d28e456ad0c57e9842b6889fc20e62c659
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Detects Pyinstaller 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FoxCore.exe
    "C:\Users\Admin\AppData\Local\Temp\FoxCore.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4580
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.bat" "
      2⤵
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      PID:3364
      • C:\Windows\system32\taskkill.exe
        taskkill /F /IM explorer.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1452
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\update.exe
        update.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1832
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\update.exe
          update.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5108
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c start cmd
            5⤵
              PID:4672
              • C:\Windows\system32\cmd.exe
                cmd
                6⤵
                  PID:3952
          • C:\Windows\system32\timeout.exe
            timeout /t 5 /nobreak
            3⤵
            • Delays execution with timeout.exe
            PID:2340
          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.exe
            "C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.exe"
            3⤵
              PID:4780
              • C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.exe
                "C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.exe"
                4⤵
                  PID:3064
          • C:\Windows\system32\taskkill.exe
            taskkill /F /IM svchost.exe
            1⤵
            • Kills process with taskkill
            PID:4348

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                installer.bat

                • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.bat
                • Size 460B
                • SHA256 5e1f5ff6412acec00269a090404125c4b80e18adb47fa5d496eaff90f22b6ff1
                • MD5 SHA1 SHA512

                installer.exe

                • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\installer.exe
                • Size 7.0MB
                • SHA256 0cf7195727559013d5d19ed9c20196c5ce390923064114f262c9a1a51d1ded46
                • MD5 SHA1 SHA512 SSDEEP

                _imaging.cp312-win_amd64.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\PIL\_imaging.cp312-win_amd64.pyd
                • Size 2.3MB
                • SHA256 0ea6c51c6700b9e7bdb45ed63201f974b4c6e5936bdeeed370c49b6dcd5821fd
                • MD5 SHA1 SHA512 SSDEEP

                VCRUNTIME140.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\VCRUNTIME140.dll
                • Size 116KB
                • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
                • MD5 SHA1 SHA512 SSDEEP

                VCRUNTIME140_1.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\VCRUNTIME140_1.dll
                • Size 48KB
                • SHA256 a113f192195f245f17389e6ecbed8005990bcb2476ddad33f7c4c6c86327afe5
                • MD5 SHA1 SHA512 SSDEEP

                _asyncio.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_asyncio.pyd
                • Size 69KB
                • SHA256 f7069734d5174f54e89b88d717133bff6a41b01e57f79957ab3f02daa583f9e2
                • MD5 SHA1 SHA512 SSDEEP

                _bz2.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_bz2.pyd
                • Size 82KB
                • SHA256 706d4a0c26dd454538926cbb2ff6c64257c3d9bd48c956f7cabd6def36ffd13e
                • MD5 SHA1 SHA512 SSDEEP

                _cffi_backend.cp312-win_amd64.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_cffi_backend.cp312-win_amd64.pyd
                • Size 178KB
                • SHA256 d8a76d1e31bbd62a482dea9115fc1a109cb39af4cf6d1323409175f3c93113a7
                • MD5 SHA1 SHA512 SSDEEP

                _ctypes.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_ctypes.pyd
                • Size 122KB
                • SHA256 f20dfa748b878751ea1c4fe77a230d65212720652b99c4e5577bce461bbd9089
                • MD5 SHA1 SHA512 SSDEEP

                _decimal.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_decimal.pyd
                • Size 246KB
                • SHA256 3b9ad1d2bc9ec03d37da86135853dac73b3fe851b164fe52265564a81eb8c544
                • MD5 SHA1 SHA512 SSDEEP

                _elementtree.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_elementtree.pyd
                • Size 130KB
                • SHA256 948088d7c373b4bdd1b9b2affbb50001593195f3fa775746817498a119348ee1
                • MD5 SHA1 SHA512 SSDEEP

                _hashlib.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_hashlib.pyd
                • Size 64KB
                • SHA256 4adfbbd6366d9b55d902fc54d2b42e7c8c989a83016ed707bd7a302fc3fc7b67
                • MD5 SHA1 SHA512 SSDEEP

                _lzma.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_lzma.pyd
                • Size 155KB
                • SHA256 6216173194b29875e84963cd4dc4752f7ca9493f5b1fd7e4130ca0e411c8ac6a
                • MD5 SHA1 SHA512 SSDEEP

                _multiprocessing.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_multiprocessing.pyd
                • Size 34KB
                • SHA256 c7bbcfe2511fd1b71b916a22ad6537d60948ffa7bde207fefabee84ef53cafb5
                • MD5 SHA1 SHA512 SSDEEP

                _overlapped.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_overlapped.pyd
                • Size 54KB
                • SHA256 c21b50a7bf9dbe1a0768f5030cac378d58705a9fe1f08d953129332beb0fbefc
                • MD5 SHA1 SHA512 SSDEEP

                _queue.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_queue.pyd
                • Size 31KB
                • SHA256 fb57ee6adf6e7b11451b6920ddd2fb943dcd9561c9eae64fdda27c7ed0bc1b04
                • MD5 SHA1 SHA512 SSDEEP

                _socket.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_socket.pyd
                • Size 81KB
                • SHA256 5cc62aac52edf87916deb4ebbad9abb58a6a3565b32e7544f672aca305c38027
                • MD5 SHA1 SHA512 SSDEEP

                _ssl.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_ssl.pyd
                • Size 173KB
                • SHA256 72bb15cd8c14ba008a52d23cdcfc851a9a4bde13deee302a5667c8ad60f94a57
                • MD5 SHA1 SHA512 SSDEEP

                _tkinter.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_tkinter.pyd
                • Size 62KB
                • SHA256 5c400b4bc0367e1eff93955973efb3f85ce5970080bb1953f4e80bdf6f23c5c7
                • MD5 SHA1 SHA512 SSDEEP

                _wmi.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\_wmi.pyd
                • Size 35KB
                • SHA256 aa1443a715fbf84a84f39bd89707271fc11a77b597d7324ce86fc5cfa56a63a9
                • MD5 SHA1 SHA512 SSDEEP

                base_library.zip

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\base_library.zip
                • Size 1.3MB
                • SHA256 9f15fed288e8437df3c0b13c7ca382a29eb7310f6fc9b49435c737f34ac182d4
                • MD5 SHA1 SHA512 SSDEEP

                __init__.py

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\cv2\__init__.py
                • Size 6KB
                • SHA256 b05b8000c71987cd4df824c1ed134b7fcd34617665e437b1aaec128f93d7f1c3
                • MD5 SHA1 SHA512 SSDEEP

                libcrypto-3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\libcrypto-3.dll
                • Size 3.0MB
                • SHA256 a788191c24eecb7ccf497a6808de5682bd72f3c4118b452fe6f4d9ffac62a333
                • MD5 SHA1 SHA512 SSDEEP

                libcrypto-3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\libcrypto-3.dll
                • Size 2.8MB
                • SHA256 4c065ac88a6e651e476e7877bdfe6e91c698ba52a21092a24c64ed96a251a19d
                • MD5 SHA1 SHA512 SSDEEP

                libcrypto-3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\libcrypto-3.dll
                • Size 2.4MB
                • SHA256 c9e4ce270ef9a6794ffdaa6cd06706c3780fb1b8b3da638a80da58ff9f3fa58d
                • MD5 SHA1 SHA512 SSDEEP

                libffi-8.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\libffi-8.dll
                • Size 38KB
                • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
                • MD5 SHA1 SHA512 SSDEEP

                libssl-3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\libssl-3.dll
                • Size 768KB
                • SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
                • MD5 SHA1 SHA512 SSDEEP

                _multiarray_umath.cp312-win_amd64.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\numpy\core\_multiarray_umath.cp312-win_amd64.pyd
                • Size 2.6MB
                • SHA256 f76b8f851daa7d5f0af8bc3a1d37284f15677fa428eeafef74329ffdda554229
                • MD5 SHA1 SHA512 SSDEEP

                pyexpat.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\pyexpat.pyd
                • Size 194KB
                • SHA256 c42874e2cf034fb5034f0be35f7592b8a96e8903218da42e6650c504a85b37cc
                • MD5 SHA1 SHA512 SSDEEP

                python3.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\python3.dll
                • Size 66KB
                • SHA256 a59487ea2c8723277f4579067248836b216a801c2152efb19afee4ac9785d6fb
                • MD5 SHA1 SHA512 SSDEEP

                python312.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\python312.dll
                • Size 5.4MB
                • SHA256 e48291fe068e024b1c11469b9a0d7ae1d494d336187016115431a8830f78db13
                • MD5 SHA1 SHA512 SSDEEP

                python312.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\python312.dll
                • Size 3.2MB
                • SHA256 36210414386fb80a01e4a68b800d3524b135230ea2024da2a82bbb50ddc1f3c9
                • MD5 SHA1 SHA512 SSDEEP

                select.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\select.pyd
                • Size 29KB
                • SHA256 af358285a7450de6e2e5e7ff074f964d6a257fb41d9eb750146e03c7dda503ca
                • MD5 SHA1 SHA512 SSDEEP

                tcl86t.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\tcl86t.dll
                • Size 1.7MB
                • SHA256 28b61545d3a53460f41c20dacf0e0df2ba687a5c85f9ed5c34dbfc7ed2f23e3e
                • MD5 SHA1 SHA512 SSDEEP

                cp1252.enc

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\tcl\encoding\cp1252.enc
                • Size 1KB
                • SHA256 741859cf238c3a63bbb20ec6ed51e46451372bb221cfff438297d261d0561c2e
                • MD5 SHA1 SHA512

                tk86t.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\tk86t.dll
                • Size 1.5MB
                • SHA256 23a195e1e3922215148e1e09a249b4fe017a73b3564af90b0f6fd4d9e5dda4da
                • MD5 SHA1 SHA512 SSDEEP

                unicodedata.pyd

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\unicodedata.pyd
                • Size 1.1MB
                • SHA256 be942308d99cc954931fe6f48ed8cc7a57891ccbe99aae728121bcda1fd929ab
                • MD5 SHA1 SHA512 SSDEEP

                zlib1.dll

                • Path C:\Users\Admin\AppData\Local\Temp\_MEI18322\zlib1.dll
                • Size 141KB
                • SHA256 c89c8a2fcf11d8191c7690027055431906aae827fc7f443f0908ad062e7e653e
                • MD5 SHA1 SHA512 SSDEEP