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02/08/2024, 18:55

240802-xkzn9a1bkg 3

Analysis

  • max time kernel
    134s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    02/08/2024, 18:55

General

  • Target

    Release/Microsoft.Bcl.AsyncInterfaces.xml

  • Size

    30KB

  • MD5

    1fc4bc74b30d484c24b04de5c0a38f5e

  • SHA1

    aa0f9f8db757d37f1f92473a57ad53f20615460a

  • SHA256

    3d06c35d7b0eca37abe2d135cfe12d1012816a99e5e92e0cf4e8501e1b540aae

  • SHA512

    6ba26c5d6edf273cfae5e637ef1623fa37b171d8927bfd9fa8c85dcc27eb6a4fbbf8427e08cc61746604dd0e75e4ba31fcfc661349966fc5aa48da8d5b5f6045

  • SSDEEP

    384:XgOpngSae6jWuTPP/xM2fB8qnmltJ5XZzRzgqW81Fu3DRmfCh7sE+siDBQsFJIss:0FQJNTR7TIcXI

Score
3/10

Malware Config

Signatures

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE14\MSOXMLED.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\OFFICE14\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\Release\Microsoft.Bcl.AsyncInterfaces.xml"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe" -nohome
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" -nohome
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2744
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2744 CREDAT:275457 /prefetch:2
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    342B

    MD5

    3da0124e7b464d2994008ecb4d005ce9

    SHA1

    16460d3b80ff589ec51b44019e69dff4072f3e04

    SHA256

    8d71d3e48110ab634811889da2d5b7b27528e1ca56b26157f5439c9f984ddb41

    SHA512

    28d50509e6066d75f221b249d73f4650361a05bfa0eac7a942525f89a1220dec8c9c66a1bcdee5907878941b902490900dfa3217a93b03021ef68265e94c4f15

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

    Filesize

    342B

    MD5

    d39b2c7b99832d6947e76b97fc93631f

    SHA1

    70a50198c60c8f0aef83e301fb47ed84f41d6125

    SHA256

    127c610b2b237d42017efceaed840c76594f954a89672511f3577385830f952f

    SHA512

    484c6a45df6e4d1f6082e2fb298dd0f16416411d5c898657fc19a9f17e7998a3b0acf6dfbfbe1d571beae21ced8215ae75ea7af1fe08fecf7c67ee127a04f9b9

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

    Filesize

    342B

    MD5

    ec493df5e7190e750f7643d130bccf71

    SHA1

    07a7203292b6a80fa09fcfce3f595c0af98a7ebf

    SHA256

    19822ebc2ef707553b5babec2aac870f356cbd3dfa2ea94788914b2d4f6fc756

    SHA512

    48501a5c12bc99063260d81a2d006880cf986e17a83d5fd0ec66aa3b9527c3585302f3e53b8ae1a92923221db093277203752462bb0d1ad3885f2db81804f407

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

    Filesize

    342B

    MD5

    2c1ee33e6c4d712eea7a161136b0fd78

    SHA1

    cff62e03c4daeda490d651401dfe2752bb941f66

    SHA256

    4a023d061df0ba6164249c55bb5c5a9fa4a687c7cec7261ef50ab9bf6abc6f8a

    SHA512

    abd243147b92ffa280124b0e85a7ba1fd0e47f22401bd758251df920d17e17c23cd8dba6b48a876be61e6d7604afdfd646b85ab408a37a8bf2c622185d908a06

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

    Filesize

    342B

    MD5

    873a85180717dc6a027c65751579eb2c

    SHA1

    ca174f5395c50c4173f4c5336761417654bc8564

    SHA256

    4e64e8c9743a37b803b1e8cba81399fc05eab21e750cfbb737bde76a40dfa0eb

    SHA512

    a658b2abf72729739f1e5a1d5da4e5cb8ec670e69823eb53f66f8fda98fb0568f602224b9bfdbbd042c11733c9dd7a72434f8a99cf0907f5fd139c3b72df4c40

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

    Filesize

    342B

    MD5

    135dafc8f3bf667542c33d97f917a8ab

    SHA1

    a66f5ae488b3d6affa2cb92e216cac5243d240fd

    SHA256

    2a22ea864b506e81a1fa48cc069ef4086fc3df7811bf529c4cf005ce71fc26b0

    SHA512

    0f5ab247416602276b6a7ca82b4af25197870dbf5448162f4182577f8483dd9ccaa6288e18b1f6d2c16ccc96a1a580e83ea2cb7262a2010761beea6264bcb4af

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

    Filesize

    342B

    MD5

    7a6f6e481525198294719879c45c8c61

    SHA1

    713947e989476ede32b9dab5df16af45b605c91a

    SHA256

    e9ea333cbd21f640a13293da903dd3eb3cf1e3a2fad5eafbf3928a41afb660f6

    SHA512

    1a66b5bc7374f68e35574069659943b3042cc8d4a87bdb9418ce4eabdd4b0fb4d40288a3fc64e0662469d0a876a27842df249217eff523629835655fbb25c24a

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

    Filesize

    342B

    MD5

    eac48bbdf74e9dd7ebc2004dcace2a5f

    SHA1

    9f60f24280af74c517e3c8fda42056cec282b482

    SHA256

    23f3c488e4180a10e223e9474d3f0365cea27ab2786124530a514741c6388804

    SHA512

    76da1879fe009bbbf3775281ae05c81f56ba932898fbb3c92f95138ca2c306878b4795e69a3948f996ea27005c8968725dc4f70d2e50b15d502a46fc9a338206

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

    Filesize

    342B

    MD5

    4ef5e4fb730b3c607c3a4568086f3adb

    SHA1

    b529493661b09043c0201e0e95e8d700f10f590b

    SHA256

    c2ed294da218cd81a5ab378849dc99b310ef9a21fd0167e9c59ea5566f8f5886

    SHA512

    a2491a06631c64c5b0f06e2f29a24d6807de5cea54c87fa7b17324e681e31a6b8299e0557cf133b829c8611e8c30347b5f4d1f96ed9d29b1e35a5d878496e7c7

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

    Filesize

    342B

    MD5

    28f3e4be3860e353425f55a79f5662c3

    SHA1

    59ff012cec07c34c43d6c938bb0b2c5e0934d431

    SHA256

    3ebc1f269a75bf37cfd91b69182a089451408bd51bc7e75aff541cf67b0e23e2

    SHA512

    745448dab58ce4a458f18ffc01041116179c6a1dc2608c8fc2909f1e0866515e5d6351347aa0f734760a1b664a63482d0a5bcd82c37f539cd076c9b0bb75bb17

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

    Filesize

    342B

    MD5

    4c8dcf6fa447254b3b5fc927b07d4df3

    SHA1

    31ead745b7f3ef523566b779758605459f9f24e8

    SHA256

    455c076e8e35b4697a9c2c27e8c4cfa5815a12c369e3f953d3be9b096cb8ba7e

    SHA512

    774d686c258285ceea2dc7157403df860b2ad0ff635a4bbfa9cedef0695f0405f1989f28a9bbd6df050152f1a92e98a11c7e87de41bb677b44dbb2ac518c7634

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

    Filesize

    342B

    MD5

    08d66c72932358710a66bd815f8b22c8

    SHA1

    e69c8d55b728ceb1eb4a1f98f03be284760cf1e0

    SHA256

    3cd0c1c3c8fa599ddc81af1a1f766dd99279683683450a39965a5c789f8b56ac

    SHA512

    a9c50810702cfd1f6e2faa4dde0726ed7b3b68fc2b313ed225140727cab7abfd9ed6aadf2bc2561a08971ae82b29f71e4675efea2753f168cbd36a37e409bb4f

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

    Filesize

    342B

    MD5

    2ae408e2b1f5e1e1f0c2f87237f1db9d

    SHA1

    2c0cfd877b9ed00b211f16e35671fc6c0c9d8008

    SHA256

    817cc993282e19992f458d8d980c90111708a3383a4d327e6157d342498e9c47

    SHA512

    9cf7709242541ac20c438bc8b7bacbe60b9b6a7ccab7e69b1edfb443a974c4db11dd077944432ea4e53ee6c0841626951fd7c8f14bb239636ae5f316b9d7b423

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

    Filesize

    342B

    MD5

    880e65f5525eb19577935ad748c5fd5b

    SHA1

    f8d4e0f087456f5b4199934b9661cb6c0bb27aab

    SHA256

    05634dc5cc8fffc94df8625bab10e00e9e33fe5d88ed694b330b6916246b087a

    SHA512

    50858f7b6bdee6b30b2f95c17628ddcacb232831ac182629f1376a4f6a11a0c6814b35f2011bc25acf7c80c3d1bc8acbe7296833f8fb25affaf803654de00291

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

    Filesize

    342B

    MD5

    27675a909c51a5f1e2de4672ba77085c

    SHA1

    f46fda69cc7522a5e3008640c36377b6bf1e5924

    SHA256

    aea21daec1bdf87419a566dbd407a065f66171f6f05581490aecde9ee098a7d6

    SHA512

    09b182143db2cf1e9627e02043fe29df6e107b6eed7d3daaec52f7a2408d7e16bbf18faa8585f1e82623942c78e069cd398c9bbc95a00f2c5cfc2ab22816f539

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

    Filesize

    342B

    MD5

    b9171dab75d5ba955ae4cd97dbe46428

    SHA1

    b5eab2594d2a4be77be4c32f6128856c3005dc39

    SHA256

    fb5b4cb694370c0d3aeabdf1b710f7985728b1849bfd2f28ddc4a3acb8ff1d65

    SHA512

    3a320fdaeec96ffd0135d0d0f219e81230be8716102fc403b29f4cc4e9b454f78f16df1c2a9dd767138371fdd6f3df094daefdc7ec7fc77be06a4974240accc1

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

    Filesize

    342B

    MD5

    8960d628c8c2e581b249d23380e5d8a1

    SHA1

    e188820c9ec4b392005e3d3ce3bebb733518051e

    SHA256

    5ab588390c6091e373a43965134d03a6d7c22ff6c477e3787cffa606122da711

    SHA512

    bb927f5f22173965b0483913d3c7b9dcd942deb845e1f849fa3aeae94eb8f313e869a8d328298bcf0501138c762635698b4e7483544fd06203e6a7ed37883ffd

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

    Filesize

    342B

    MD5

    5fa3b2d65d33b345d158c38d2b24cb93

    SHA1

    2538e29f8359d61401574032696db9e2a5d79034

    SHA256

    a626f9e8d18a345d82f30c65c9aa9d20aa70c091637f750d24fe5248157199df

    SHA512

    d2f8f419af6f6543ddbd830a5f978c63c7cbcc3658cd891ce29e4e9229f27ae578aa1854098ab745ae9bdd022010224d2b4126ac7200e408ade34cbc5c7e2592

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

    Filesize

    342B

    MD5

    7a7303a41dd9525e54a7a7edb007a8ca

    SHA1

    4bbcccc334b0075b93934bd85dce05439ccf44f5

    SHA256

    5a4179d327557d38b8f527d047d7739ca41671603e3a637caed824da72aefe40

    SHA512

    91873a276ac909b802befb2ae3ff9a892dcd577f568b4c5ceda5d31ba7b3979e8a7992aaf51516d6253cc770a3e8110ded95ccba39f23de738376e29693bc5ed

  • C:\Users\Admin\AppData\Local\Temp\Cab8B13.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar8BC4.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b