Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    13-03-2023 15:58

General

  • Target

    rbxfpsunlocker.exe

  • Size

    491KB

  • MD5

    42e3a7ff923cec1841e0fd0deb536776

  • SHA1

    59c842a1036ae473adee93bf8bd55acab2b13cf1

  • SHA256

    be8ab7938c03637d7fc03a765cc80821285544f7e659d7dd7aa1523f7727f1e6

  • SHA512

    23c41efad73d828dcc156e2c344c0ea034e5d0b888820fd9c1be751b36a5f6ca18ac22444483ed06ca7d50e4a9d63eb04ffa90a2c46c812b13fca4b3276655e0

  • SSDEEP

    6144:fkoFoOGtwz0ti5EqtpRiiSOLWjD8mBcsSX/koh36XiGpf:fk5X2zEiGqtpRRSxjD8F5X8oB6X9

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 38 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rbxfpsunlocker.exe
    "C:\Users\Admin\AppData\Local\Temp\rbxfpsunlocker.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" https://github.com/axstin/rbxfpsunlocker/releases
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:828 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1544

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B398B80134F72209547439DB21AB308D_A4CF52CCA82D7458083F7280801A3A04

    Filesize

    471B

    MD5

    d9655b37970681a6e8aa53b18f20d2ec

    SHA1

    76aeeffaf14648035482fe1d70d5382f5b26374c

    SHA256

    35873020cb1a03b6acff18ff63dbead87f1a11c26088b2e7c001c8fb8007ce61

    SHA512

    4b1c91068cc93de84c0d4ea76191fa9df7589c6f67210bb8e250b7fba98fa8fc3a613f55973349ec68a84b41745c3c7f94c80f78c27f0e11845518d0cb7084e1

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B398B80134F72209547439DB21AB308D_ADE4E4D3A3BCBCA5C39C54D362D88565

    Filesize

    471B

    MD5

    bcdd6b617b99534b7168575bd7c7b23f

    SHA1

    e8efe8e3bd6cb1c56c3f47cb1955fa946ba168c1

    SHA256

    22aa3bafc2f1ff7ba2c730b2b3751abfbf104612f4bca399efc58c0ab74a1fb9

    SHA512

    7dc8e485f3d91adec3533bebad0d970928ac611ae39396b6c16b9484006d40f4abb5ed72a2a48117e30a9232db4e8ab822c1a5120f7c43f51176d0af4823672e

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

    Filesize

    342B

    MD5

    943f7bf20a4485c28b808d0eef9ef822

    SHA1

    97f63b5694e2223c0ac7dded68c878903e38e844

    SHA256

    33ae9ceecdb7bb78fc074166fadc11216d5e9faa7d213898a86e29811fbc17c6

    SHA512

    97a55728628b745eab564bf7c0e7b27d3accc15850d49f2e94e5c5f51ea653fe3c5982c4872506d0c2c82b2af22fda5d8a2271124c2df2926da0c656d79fa03e

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

    Filesize

    342B

    MD5

    59614a1334059e05e21c6d3f357eee21

    SHA1

    6d88b61ce1c46419627c20fc9f86c3b47a031b17

    SHA256

    2eb66a9cabb5d8080d13c0b213dd58e2b05e41d922e33ca9a0270c647585272a

    SHA512

    2302c8c706aab5fe1e237e069b8bfc28f79cc3d9c2ae9dc55ccd532b878eff8d4bb48bc605db040db655f4ee6c311801f50db0a4241580dd3acaca60df4766d7

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

    Filesize

    342B

    MD5

    c9938e3ae254f53af0ff3c3ffda03e1e

    SHA1

    a13867569d614963e79fe7e194d7c0859668a6a1

    SHA256

    628d467d172d22dbf07e9226ae234b82dafad1d2a12d244584d20d0b8d6537e8

    SHA512

    4181884b33abfd6301138a058c04103f8b5b12cbdb960959def9777d7fb0fb0faf245cc8c4202d81e6b12a93c0c1a38a469b3a1484e30f44b4d236320f1d6d9b

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

    Filesize

    342B

    MD5

    ce2170934075d19b9dce78028ca9e41a

    SHA1

    833e3a7991f1609732ed9d206b711b3e4cc4de96

    SHA256

    7a4f86a07226f5a6872bae01a0aae7cdbaf0eb514972fde79881ea734a0fc0cf

    SHA512

    1d216398c912dd5715d81ce994c7dcf73722a7ecd614ae2ce4032f0543bac18d99de97b14ccba59faef1d1691f5ce69fa032624d67c86739ea8f56ea5976f0fa

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

    Filesize

    342B

    MD5

    bd04e3cd0212f3a1ea2b53dede9accbd

    SHA1

    c46fc17bdd772ab51c2a14afe2391e6327bf988d

    SHA256

    338b42b044c9ed7db1d5834b1300dc9c5cc74bd50a0c6f7fcb9d36c5327f8462

    SHA512

    016876c3c7c48499781057814fca82b4dbcc53a6d347e9d23bfe6bec6760036e14af3939458bb72608cdd26a3ce8c6cf3d8df9237606c62dd611be23189e4e58

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

    Filesize

    342B

    MD5

    dee3612b446662f3732d89b5c8611a14

    SHA1

    6ccd2a61329da1e027ec82750fad11b97506b036

    SHA256

    4b578d42e6d5d2a024a911a92af777c90b8a10e99719b647cc86d0b300272158

    SHA512

    b1529551ae0fee0b1745de5a3872c5ee342d565a48b064a12d2f7222244786e94b489ebbce6457574f65d75d33ffc3ece15a1fa273b5c2bc4e55c371bdd45291

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

    Filesize

    342B

    MD5

    c7a9269b6564bb82f309a70273cf03bb

    SHA1

    b9da40b4c82936d19d25729cd7ab42c046e0c58d

    SHA256

    0baaec4f6354cf05c8d01cab4dac64c015488f3af6a8afe4c38465a3059576c7

    SHA512

    0b4143cee82d55262e39408d19fb5c688994090fb18ed81858a1e5f4c51727de30da919da4804ba4258e35183f1f1c5955b82dbacf813ee6ce286232e08487b6

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

    Filesize

    342B

    MD5

    af9da6881184b595aae8b917e584ca1b

    SHA1

    514dd446b069446a1a71276ce4e262f37b25d583

    SHA256

    41ad12841a6f48ad09ed7d8f2a39720b7f309766e18febecb6f987455263a25a

    SHA512

    903dc8b9ed82375ffed909d4eb7906d7ca31106b8bd04e4f0eb8e3ba894ffe3b1c9d2cbd6acaf7adea2f591cf9a52248bb7e4ddf65961a4e2bb81c0e4050a3bc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B398B80134F72209547439DB21AB308D_A4CF52CCA82D7458083F7280801A3A04

    Filesize

    430B

    MD5

    443cf36fa995c9aba453e2606dd44a36

    SHA1

    f6f880f92427f8779787990c0856fa7885e9cb7a

    SHA256

    d024b1d538a2e9931463388ebd2eb2818f1150bcbcc5d3f73ee37a9bb22c77e5

    SHA512

    41e4450e4df3bd16074b66b9f4c2619a1bd8e13da9d67224071fbf972ef8c7d85026cdb8a1f7f956dfc0c5875c5811f3f3c5afc19abd7c1bc6a64eaf0290b7eb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B398B80134F72209547439DB21AB308D_ADE4E4D3A3BCBCA5C39C54D362D88565

    Filesize

    434B

    MD5

    69e4ad04873ebfb8343d12bd78e123b5

    SHA1

    307d517fc355711fe008d059b54eff143a6a4265

    SHA256

    e993b4e864f9ff907fab823060ca154e75e0ec811b241df5412172ab28f6abfd

    SHA512

    9b043f047b881bcecd2c5cfb463159fa8ae01ca3652f68656cf8d74fd8ae4aef6a685aedb5306b1564e1060042613247aaa56170dc6f6a56f0e6a288ccafa349

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\07asiie\imagestore.dat

    Filesize

    5KB

    MD5

    1b8f87dcae5a83a414a4d84593c176db

    SHA1

    526fd13c4e9f9237500de6c2a9a54bbc849a16d4

    SHA256

    b9fc20ba2db3ed553ccc8e3ee6eef394ad0cd267d511e98c206dbd5b99e9c2f7

    SHA512

    f9a0dc011b13d86b414497e9b1452c4db83c77c05dd3bfc3c4634c5be85ad421470baa1b21f805392b7bcffe8ee80c48e6ce482a66097c8657fa4110f7e804a3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4D33E1QE\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\S7FIT0B8\favicon[1].png

    Filesize

    958B

    MD5

    346e09471362f2907510a31812129cd2

    SHA1

    323b99430dd424604ae57a19a91f25376e209759

    SHA256

    74cf90ac2fe6624ab1056cacea11cf7ed4f8bef54bbb0e869638013bba45bc08

    SHA512

    a62b0fcc02e671d6037725cf67935f8ca1c875f764ce39fed267420935c0b7bad69ab50d3f9f8c628e9b3cff439885ee416989e31ceaa5d32ae596dd7e5fedbd

  • C:\Users\Admin\AppData\Local\Temp\Cab41A3.tmp

    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Cab6C9E.tmp

    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

  • C:\Users\Admin\AppData\Local\Temp\Tar6BE0.tmp

    Filesize

    161KB

    MD5

    73b4b714b42fc9a6aaefd0ae59adb009

    SHA1

    efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

    SHA256

    c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

    SHA512

    73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

  • C:\Users\Admin\AppData\Local\Temp\Tar6D10.tmp

    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\SH83QF9P.txt

    Filesize

    606B

    MD5

    91dcacc253bec612b4b4429e0b0bfc57

    SHA1

    c9dd47cec2f61cc9df99647f59c4c1a4c098512b

    SHA256

    719c143c68d530a14b4739ba496669f627c0bef67faae00d51bb37bbeb867ad2

    SHA512

    a345c1d2eb9fd18f756e697fc132b9e2b7ee410270feaf8dd51b6e04c5925be33afadd633785317d3e87c0f3f4b25183f46e614ce6a14ef066ba234b8ab79006