Analysis

  • max time kernel
    29s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2024, 00:00

General

  • Target

    winiso/winiso.exe

  • Size

    6.7MB

  • MD5

    ffe131a36defcc2054e7478f15ba6f75

  • SHA1

    8588e0a8c76facedb15e9bc1dfb7c58404d40620

  • SHA256

    3af0ffef5beddcd906f5ac52a89a9b70834c79b0123623e2adcaed5206e7466b

  • SHA512

    780922d941c62f847cc4b263712aa85f23bd3a5d96e2662629349354a6b0bc2ac09e609474e4e8990fc2cd7f25ab2dad6f54a3dde71d411bc64da9aab30fd6b7

  • SSDEEP

    196608:1MNnpS2rQnelFLLbCGRt6Hqf0LC9sV7DuYHemav0zd+ZsWCBkQ0rfL:1M1pS2rRFLLxySf2+Syvi+mFSL

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Drops file in Drivers directory 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 64 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 56 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Modifies registry class 10 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\winiso\winiso.exe
    "C:\Users\Admin\AppData\Local\Temp\winiso\winiso.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:584
    • C:\Program Files (x86)\WinISO Computing\WinISO\bin\mnt\wmnt.exe
      "C:\Program Files (x86)\WinISO Computing\WinISO\bin\mnt\wmnt.exe" /install
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1168
    • C:\Program Files (x86)\WinISO Computing\WinISO\bin\winiso.exe
      "C:\Program Files (x86)\WinISO Computing\WinISO\bin\winiso.exe" -install
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3020
  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\winiso.exe
    "C:\Program Files (x86)\WinISO Computing\WinISO\bin\winiso.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\WinISO Computing\WinISO\update_2318\bin\updater.exe
      "C:\Users\Admin\AppData\Local\WinISO Computing\WinISO\update_2318\bin\updater.exe" winavi_upd_29345
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\WinISO Computing\WinISO\Resources\aff.dat

    Filesize

    312B

    MD5

    03a0dd68100b5343aace52308787308a

    SHA1

    865a2e03f65f88b140817b1f7942790d2a0ef751

    SHA256

    b4ae553a177904eaec83abc7856c20f0b3c7f272395de4817a3c97bb769fb5aa

    SHA512

    d1f5066538da075c1ba191aaa4cd2e6c1a9d2d2517a889d5e555a301ea91ba37f9d3cecb03b973c2cec3bbe14776a95f38b0fd86b162f1cfc1062ff9a9e800e2

  • C:\Program Files (x86)\WinISO Computing\WinISO\Resources\meta.dat

    Filesize

    514B

    MD5

    b77aa34e00db54aa019cc5116dba31cd

    SHA1

    2576f5b051cf6f1caef9f80e1b3f30de8a742ee9

    SHA256

    1854bf921ce97a6d9e52e47e5b6ae8eafe7261eee98cb29e66f70859c02cee3d

    SHA512

    32d6071eeda21c4ca9a076940340b02823cbbe8216781da33a6482bd01b3488e99c3a20e2e5f8ddbc11cbbe04a00e67b89210c341e44854d7cceb985b4e8bbd1

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\LIBEAY32.dll

    Filesize

    1.1MB

    MD5

    19db2790aece5b15d5d26899674d29f5

    SHA1

    6b00e74ca106a72b509dc5e73afab5460712a790

    SHA256

    ec796c58fa7c46d51eb0e81039cff02ea62c381cbc0477ae283e0da6c3ca0046

    SHA512

    97206cea3ab357743242ef06d462033b48774cbb6e04708d15c4efa60035c2587d5a2fed1995909be524d2f523e6fcbe73aff942a52da7854c9e32f77c4b0e67

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\MSVCR100.dll

    Filesize

    755KB

    MD5

    0e37fbfa79d349d672456923ec5fbbe3

    SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

    SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

    SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\QtCore4.dll

    Filesize

    2.5MB

    MD5

    38076ac0f13aef3aebee2b63125e4470

    SHA1

    928e64ed4f551d9f406d7ea4a32fef70ca080d86

    SHA256

    74ae26018084791df388f702063519cdaec65b22675cf57c96281eb95b63d119

    SHA512

    7b1681899c44f53911de267c0af830e4bfc5081b92bb51f55e57e179d6e622ccfe1878367e433852f211e61179fd192ce4cdcb3ce27698843bc05ee642ce26ee

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\QtGui4.dll

    Filesize

    8.2MB

    MD5

    ed555c555ddfc9567ae5ab6cc7cbc604

    SHA1

    ba38ad7539315b51c3809326fae2f4045b818a0e

    SHA256

    76b3292006d9e9f0adb21eda44de5a10d76833162a138cdade2a2fad8e4d60f3

    SHA512

    0f2709521dd61b3a5861493e47a52559c0a30c2385117476874587b3b4857e52d08c255d5c4d4e879a93082720f18a4b6b31d7c848598954dcf8bf171e742109

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\QtNetwork4.dll

    Filesize

    1.0MB

    MD5

    cc21b79dd81dc8eba20b1180601d0b00

    SHA1

    ce998a7a99a3a093e9cffd0ad0a039c81ac6898c

    SHA256

    d8d16f347d54333e74a5dc7ee64af89010251605f1968de1d2ef7c5983892e76

    SHA512

    faf42be6c8938bea30b5557c63cfa12306e37b2a8d1d181fca82634f41982efbbd91cc374b4efd9c03329b1af0e6b947c2ed1d310f16bb16602476e70f33121e

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\filesystem\cdfs.dll

    Filesize

    75KB

    MD5

    4b1c96c85be3d4120dc12f27c80a4864

    SHA1

    414075f7f9daef2ef00b3e2bad4f0bad4c591c51

    SHA256

    79ca326e98c50f6f88142dc12ccf17dc5f9fef08f03cec6b9c6e614a2f87bfbd

    SHA512

    17111db8a9e05d6e3c4742d815f63728cf0c5cf8bd211121e7cbd869ca8ef186bd5b90a40ec4738338e2475734d750511734708c64a338bf260ab928da11a1ce

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\filesystem\hfsplus.dll

    Filesize

    50KB

    MD5

    1a2ef3e48c704a746c5f0db12ea5b67b

    SHA1

    b307a91f57f616d08dabf550f41b6c6e4b127565

    SHA256

    23f599058e32ed2fa906155ca0d5b3866943bb25eb32d384ddf4d71901980740

    SHA512

    5ad3296328b9ffed94ea9c0c5282d11caf975055ec54071f2e23739e03eeded13dbee27da52f766a1236cae43f00825e65bed5ef31532e01d82388ebc189b80a

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\filesystem\udf.dll

    Filesize

    59KB

    MD5

    805cd44b8bea7725c5b73f91e3653109

    SHA1

    f268f53f75ac19c7ecae57a877cb409a878b8064

    SHA256

    18648e73f3876dca78a2686dd1c39cf36b118bb206e1900f1219bb61b0c64ca5

    SHA512

    b391f32454f752e7022ce782bc49043df6deb0c83176eef30b4eab0e4df3522568084c566ca41a24b9d587a89d6b7999fadf5db7f0411dafcb34850c50660e3a

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\format\ccd.dll

    Filesize

    33KB

    MD5

    1f769ec639cd4fd66aa354104712aa76

    SHA1

    52b3a157add9f928c0960c7cd6920a84a54a1180

    SHA256

    edfeb462b279dc221aaa11f10f97c504470fa9e527ad563c2faf645ece81f4e4

    SHA512

    f138de5ff25d19e09074a58c3f24d69e201f6b3a248d79cfb44d8e8d55de67becdfd58fa9245ad024583471105eaba90cf350068119c1fe23996bfc8652a996b

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\format\drive.dll

    Filesize

    24KB

    MD5

    1243ed2bc7f617fdd0c0be2a5bd1216d

    SHA1

    3459be9ab3d2c14d0bce345b898bde598e7cae13

    SHA256

    8971be20966f83f1a011fceae010bb2ff33713ed15fe1bf112dd981f0569d1ec

    SHA512

    5e5c6ac2443e3544ca5c8dcac79b22528cea90cfd5931441da64ad9e1c0093ff4d1f4096364a8183e41c6fbefbafa55adf99ee83aa21677283e781e242edabe8

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\format\mds.dll

    Filesize

    29KB

    MD5

    2043229a2b394d299d510265c7975048

    SHA1

    d525de3ee5895feba7aad1a1ba4051e0d7a4db21

    SHA256

    99a36a6b4772b138f141e8cdedb124f63fda57376c44b1ba0c94034df3560ef9

    SHA512

    a58f3c6d5de92a82ec91168fed08b485b7d0d19c368e77bea28b0b8b332afd64f15fa037c691f4cacf02e351362153c62d173483eee4536343f275a4e1d798dc

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\format\nrg.dll

    Filesize

    22KB

    MD5

    69a7cdcb8446dca614d50bc0c25e6252

    SHA1

    17d422e6c2edd60624a81c923a26824f413faee4

    SHA256

    b43916e92710d3006b98da2a5684c68fd528e1bb498ffa750941465266dc0834

    SHA512

    8d218300427b06665d581409e117fc367e335d38e186db6c42f090baf7af05ca2d21246107132a784772e56c8c10ccc600e4ce056201d8a2549cf379ea56d35f

  • C:\Program Files (x86)\WinISO Computing\WinISO\bin\mnt\WinisoCDBus64.sys

    Filesize

    199KB

    MD5

    bc67c1e4b36063968e54c3b2e4db8978

    SHA1

    480044bd0dbe69a2c85b52cc612908128d2cdc00

    SHA256

    ff4725171c6d4bde6b258fd19949c7d624f1f8693a26ab1e2e04103fc46484cb

    SHA512

    d45f2a7a7cf5b732a48b21ab176820952986c97f7b036d4d47684b453ac9848d2d3a25b8422b05af52997f4ccc3027fe1a110114bf9b7c4a64285d38b64f0035

  • C:\Program Files (x86)\WinISO Computing\WinISO\setup\setup.exe

    Filesize

    6.7MB

    MD5

    ffe131a36defcc2054e7478f15ba6f75

    SHA1

    8588e0a8c76facedb15e9bc1dfb7c58404d40620

    SHA256

    3af0ffef5beddcd906f5ac52a89a9b70834c79b0123623e2adcaed5206e7466b

    SHA512

    780922d941c62f847cc4b263712aa85f23bd3a5d96e2662629349354a6b0bc2ac09e609474e4e8990fc2cd7f25ab2dad6f54a3dde71d411bc64da9aab30fd6b7

  • C:\Users\Admin\AppData\Local\Temp\nso8FF1.tmp\modern-wizard.bmp

    Filesize

    150KB

    MD5

    1f7d268bb8cde42daf81f3b6d57124ac

    SHA1

    090b91413bb22e61ff7318826d75d4c680ea477d

    SHA256

    1dfc772f08d40b658a5d9df77f75286ae7419b395f66b0973071045a18a1f4b9

    SHA512

    d7154feb7d2661c683f10f41e6155ccc9cf26bc925df8d8e35f521179118b22be63a043f23673e10045b5a16242bedfa44d27eeb8c5d04bee15577499f5abdc1

  • C:\Users\Admin\AppData\Local\WinISO Computing\WinISO\update_2318\bin\updater.exe

    Filesize

    107KB

    MD5

    d64e326a83156b326f3777a5967c851b

    SHA1

    d5170bac88cfc4ca496a412e3c0fd50f338c43a3

    SHA256

    6d2394d950007dca6b666dbb4aceb862d4ea9405a453674c342a9a920b20b9e1

    SHA512

    5378acd0db7e11d060f934789f86bc9b36faf80b7a901760023f5d9eadc213172d6cf28a5778c55c8bef0e0dea91caa866101f7b4a671f33b4afc92e8a927a90

  • \Program Files (x86)\WinISO Computing\WinISO\bin\baseio.dll

    Filesize

    48KB

    MD5

    e37eea0f9c47f5bd9e7110521e21f709

    SHA1

    5901616e486e5bec9db629cb9b7bb65f4bc8f9af

    SHA256

    5d1242a1ef8e05946ea60f838e221ddc2a4d504bc33fa13d44704fc43a0f33ce

    SHA512

    fcd9cc2cdf295126c7ec52bf293a6e2b06daa073400157b35308f31ccb82ac163d507d87fe04b28956199c3ba3973854975745081030c2cdb22f5ad7ccea9255

  • \Program Files (x86)\WinISO Computing\WinISO\bin\core\core.dll

    Filesize

    115KB

    MD5

    316373abde9dd560975cb8ba7f793bee

    SHA1

    00027a1d88537fba615cf6ea3b47ac45c68c4e58

    SHA256

    366cef6ac37bd894c28ea4641e077355686113d405aee59db7744b4911f01874

    SHA512

    4efec249d239a870ec9d8dc8d246197b2ec6445dba1a87973ae4bdc7d9a9e5d5f2cf1d376602d00a211874be0782812638a4b1d61ebdcb8d4fe68ec0f4799c89

  • \Program Files (x86)\WinISO Computing\WinISO\bin\format\cue.dll

    Filesize

    26KB

    MD5

    8cf1a353feabbc527f6d04c9ff72f860

    SHA1

    91108777ee16c8bb0e3fcad1cbf026190ade2339

    SHA256

    469c8683066865c1715ce9e6675afece8e06abfc87edb5ac83fe89d22d3a9c77

    SHA512

    a3e9f00180035cf2729d87b8efea2a4dde45bc199b09ec3287f2c078271618d8634c26a96a4d71f0022aebb27d957bd9946ce06dc2d283cd4702b20ac0560514

  • \Program Files (x86)\WinISO Computing\WinISO\bin\format\iso.dll

    Filesize

    14KB

    MD5

    a4551723687de9b63d81ab6268857fa1

    SHA1

    a831131005bb9d2f85c0497ae05a14d93d402920

    SHA256

    cbf2b2d80fcda644914449d6f9dde64827d70988724f2631f6e51a12cd06b4cb

    SHA512

    20aa75ff0f9f684bc22200fae1237ecd02f274258875ccef4b13c894f270a6ccd2ad52acaf2224b918d2382b63b744075dcb2e289ee9a61669f53ba594eaf385

  • \Program Files (x86)\WinISO Computing\WinISO\bin\mnt\wmnt.exe

    Filesize

    101KB

    MD5

    662c67d895dcaa61fdf89244694aa0f8

    SHA1

    3a9a16141cb497c76cc17a3ea709bac50766a6e3

    SHA256

    549fa43526e6ad5327af7e2643beb30fc3c42427cdcade103ec29bb3aad33fee

    SHA512

    ac254dae72e2e790cede25392a3b302d54352fe068d502214ef61975db8f7c9c7c65bb942ff4f6d5650a68f96fdf569c3f830a7efc900a8b6fb888ce9c87bcc1

  • \Program Files (x86)\WinISO Computing\WinISO\bin\msvcp100.dll

    Filesize

    411KB

    MD5

    bc83108b18756547013ed443b8cdb31b

    SHA1

    79bcaad3714433e01c7f153b05b781f8d7cb318d

    SHA256

    b2ad109c15eaa92079582787b7772ba0a2f034f7d075907ff87028df0eaea671

    SHA512

    6e72b2d40e47567b3e506be474dafa7cacd0b53cd2c2d160c3b5384f2f461fc91bb5fdb614a351f628d4e516b3bbdabc2cc6d4cb4710970146d2938a687dd011

  • \Program Files (x86)\WinISO Computing\WinISO\bin\winiso.exe

    Filesize

    1.1MB

    MD5

    2ef62a82c049c1e31062569d34483bba

    SHA1

    b58535ff35a411013e7a43266b514e0dbdbcb132

    SHA256

    a54b13bf30c2ecc761314d88da2464acb83bddee0c1d3ff68557f1d315290a0c

    SHA512

    a924aae002a5823f45b6b18258f61de98d3622bfc75e6e72155f56da6c47f58cc389ffb410716cb46b71cb2afed5cf610563c0e6462dd230550a731309287f35

  • \Users\Admin\AppData\Local\Temp\nso8FF1.tmp\ShellExecAsUser.dll

    Filesize

    8KB

    MD5

    b097e2c1d916411e3a32031e4d4e9481

    SHA1

    15e3db5b2263c53f545451e19d11a005f4650eda

    SHA256

    fd16be229c013ba83d757b88974f9c1f01834eb8158e32f68c8042bdd156077a

    SHA512

    ee33900f3911953b0b4ce9624a3a45bcd171316048f4b6c5f048ebe1249ccaf8fb77c62077c0a40405a658733d764b8bf83046f77c00593cedaae183dbe21549

  • \Users\Admin\AppData\Local\Temp\nso8FF1.tmp\System.dll

    Filesize

    11KB

    MD5

    959ea64598b9a3e494c00e8fa793be7e

    SHA1

    40f284a3b92c2f04b1038def79579d4b3d066ee0

    SHA256

    03cd57ab00236c753e7ddeee8ee1c10839ace7c426769982365531042e1f6f8b

    SHA512

    5e765e090f712beffce40c5264674f430b08719940d66e3a4d4a516fd4ade859f7853f614d9d6bbb602780de54e11110d66dbb0f9ca20ef6096ede531f9f6d64

  • \Users\Admin\AppData\Local\Temp\nso8FF1.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    f7b92b78f1a00a872c8a38f40afa7d65

    SHA1

    872522498f69ad49270190c74cf3af28862057f2

    SHA256

    2bee549b2816ba29f81c47778d9e299c3a364b81769e43d5255310c2bd146d6e

    SHA512

    3ad6afa6269b48f238b48cf09eeefdef03b58bab4e25282c8c2887b4509856cf5cbb0223fbb06c822fb745aeea000dd1eee878df46ad0ba7f2ef520a7a607f79

  • memory/584-200-0x0000000000710000-0x0000000000712000-memory.dmp

    Filesize

    8KB