Analysis

  • max time kernel
    148s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:20

General

  • Target

    acacf07347ddcc9e387db0e4b34c443b.exe

  • Size

    512KB

  • MD5

    acacf07347ddcc9e387db0e4b34c443b

  • SHA1

    41284991c81536b0509293b6e9e949ffce2754a3

  • SHA256

    378b9ddad58713a141c9d024072c52b07d558129a576288469bd1c0fc0f8909b

  • SHA512

    12f4e8ef5fa0e43ec1deb1350f95cd9a017dbc1c479be54f29eae4392f3c64ad193d0e32d136007e674a7fbf67f4f4182774271b41ab7a311e1cc3392e63723b

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6F:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5Q

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 12 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acacf07347ddcc9e387db0e4b34c443b.exe
    "C:\Users\Admin\AppData\Local\Temp\acacf07347ddcc9e387db0e4b34c443b.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Windows\SysWOW64\zwxsmvdczunjwvo.exe
      zwxsmvdczunjwvo.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2772
    • C:\Windows\SysWOW64\swxcfvamnuxom.exe
      swxcfvamnuxom.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2776
    • C:\Windows\SysWOW64\vzmoklvn.exe
      vzmoklvn.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4776
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4720
    • C:\Windows\SysWOW64\tfhzyegewp.exe
      tfhzyegewp.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3964
  • C:\Windows\SysWOW64\vzmoklvn.exe
    C:\Windows\system32\vzmoklvn.exe
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:908

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms

          Filesize

          3KB

          MD5

          82db9a3c76e709d475569399b2b2a782

          SHA1

          d3122c057104a3447ecb97f0e9c3ea8f7b4de7c8

          SHA256

          50c51d26600b58781f947c68247bb2d1532ebc87709dc76f749fc5cc7d86436f

          SHA512

          8bc9609ea0709c704ebf128ba0f09b6eafc967b565573408790411f37c1daf2b64497ab7d7bd53eb2e988879cddeb3b3041300258ef9b35284b798d6685357c5

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms

          Filesize

          3KB

          MD5

          b5c8b01ee73872254587327734b4f9f6

          SHA1

          c2305198ef4e46cc61aef2cc044ea155d0b34fcf

          SHA256

          6d1ecc503df4fe8fcf81c48405c59acda6335a11882edd80fed3449d65484c3b

          SHA512

          4be3e14b6d9d99dffffa4a7b95c2c7b233b3c7df92864ee0716e7d2d987566859a384dacb70cd70e4182c3a550f0cb2cc7c1d110fbe30331a335e2b68bd317bb

        • C:\Windows\SysWOW64\swxcfvamnuxom.exe

          Filesize

          98KB

          MD5

          cb805bee7aa75216b1dc9bf8b25203b6

          SHA1

          4a1c472f868bcdf1ec39761803dbf866671f46e4

          SHA256

          e3b0ed66e55f593d46c401f53591cfa841ca6c9a2afec3f7a6e1054fa6dc5ca8

          SHA512

          bf28a632b7873bba4ec5283226d4dd3610329d7991c7985c8c6923d7fe601bb71cb00141927c262d4a7ac3fa3301dbbb9bf549993056189232af01b334710494

        • C:\Windows\SysWOW64\swxcfvamnuxom.exe

          Filesize

          28KB

          MD5

          9a551f812d86cdf6514c532573e24a34

          SHA1

          0bbf3e67c933fe68a10a1cfbb96aef18ddbc3e47

          SHA256

          cc548ea3528e81d9bc974e7d05b6c627687dc34727ebf03ac826bd2895cbd198

          SHA512

          d1652fdebf7a4d4c5a1212311809062af7d29ad656e88a8597b6ed0cfae404138a1e61ebc45eb2589a99481345eeb73c9926293d9b3208907f12bb934ef9a63b

        • C:\Windows\SysWOW64\tfhzyegewp.exe

          Filesize

          34KB

          MD5

          70cfea252d7cac8082d131bae5959fd1

          SHA1

          dd62afa324658aa084979551bea0724a947442f9

          SHA256

          d9f8dd447cf16dbf9b3105b3afbdff7112c50de20dcfcd9e1641617b9c9dfc53

          SHA512

          a2299c97a1f52ed54f11eb10151751a96b7c9879408e936fec4e14a334e56c9780006cb00dc36473ee9252d267f0de5af939b3a09b8c6c2c20e80f4510ffe9d3

        • C:\Windows\SysWOW64\vzmoklvn.exe

          Filesize

          92KB

          MD5

          6662b185f19fbf697c56a25c92de7961

          SHA1

          0df0c0df0de3724258df2549c583e3c934aca726

          SHA256

          c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

          SHA512

          c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

        • C:\Windows\SysWOW64\vzmoklvn.exe

          Filesize

          214KB

          MD5

          d507eb337c9bf257f9eb8c3a4faee017

          SHA1

          fcc9f8cd78a76e6758339535fccc00f1a934d6fb

          SHA256

          9bd91befd894bb56cbc1a0ac877b9c6cb0e90249be52847ec82c76075f84c459

          SHA512

          4774252e6028d0523759f2eab457257f42d5999f91734d325b3727bbdd3b6de5ff200863074b1fb31388d84afbafd0413788f0d28291bb3366b88c27e99cd2f4

        • C:\Windows\SysWOW64\vzmoklvn.exe

          Filesize

          8KB

          MD5

          cc56a59cd2a1fc7d095803278309e94f

          SHA1

          474703365c3835f10baf6cbd62c2e35345b294af

          SHA256

          57053ed6659115a8e42516bcba357af0fa18bac4662f9f89b20acb64668f6238

          SHA512

          dc1843e3d5094a06256b349378a629820a79358f46c95ba05a6cce9d485598dd7a693ffceedc6921f51c97007c0fa495a744f770045112ecf9ca0cb69e353c6d

        • C:\Windows\SysWOW64\vzmoklvn.exe

          Filesize

          96KB

          MD5

          cc727bf87e75e50d52a07aae13046485

          SHA1

          1e3f482c3e5ce033458667b8600f90037a39f88c

          SHA256

          a030d652d6e7aa73d0ee0f3cdc1c4c4de60b34c67e8ad81e9dccaf28e833871b

          SHA512

          a724410143e813afcfba5b3033840a919bc1205f8a9cfbcfc8191d241051f10fa3d11bbaa5beabadb9b4456c717ec541013d42e125216620f2988a0f6acee44e

        • C:\Windows\SysWOW64\zwxsmvdczunjwvo.exe

          Filesize

          48KB

          MD5

          79c1e3941bc14172199525e8d6583096

          SHA1

          79de7a0f6d6498c7246091bb1e6f66951ef912b0

          SHA256

          dce49360f7198cd87c7f32ea2504a27fceefd591f31c2b230d33c5485711b4be

          SHA512

          909a47fb9b39cacd26369f4dda1104d2b370e750337cd88dd36380e42719369e86548fab256a9da72b2bdf2b92742ac223f7bb1751617fb180abe6fe4199b6db

        • C:\Windows\mydoc.rtf

          Filesize

          223B

          MD5

          06604e5941c126e2e7be02c5cd9f62ec

          SHA1

          4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

          SHA256

          85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

          SHA512

          803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

        • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe

          Filesize

          512KB

          MD5

          e4220ac6b1db6808586fe75f2acfae7f

          SHA1

          27fd4c22b66808397f70c7d5d743540a4bd15574

          SHA256

          5c361372c53eb817170fb78a18d3c5775cf60e7f5ea095441a62b4220ac9b242

          SHA512

          5766e5e9b484288992cb935f9d9e05f62c7d196d2e6c072c5cd12f0b809f8cb53cfb19f0962ecfe419db3f8ebabf48d2110557db2cb864b7de142343e860a8d0

        • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe

          Filesize

          512KB

          MD5

          8db9b7c35708c23a8581cb4c242fdcae

          SHA1

          965958feb7aab118f7ba2ca1dcef8d73eddbbde9

          SHA256

          9f4854b746995fb8cece0b8a11c33d97b4543e32bc3e0e5fb46e9c2e8378398c

          SHA512

          b0bfe295751221540131831406cb0ca30f8a9e0f98aa07c26fb39386036d9f8e9ac5f1f35a0f9f15ffc6c4b5f9b98e08d9345e532571b85125e2a948afd9b072

        • memory/1448-0-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/4720-39-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-46-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-43-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-42-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-40-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-50-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-38-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-37-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-51-0x00007FF8F37E0000-0x00007FF8F37F0000-memory.dmp

          Filesize

          64KB

        • memory/4720-52-0x00007FF8F37E0000-0x00007FF8F37F0000-memory.dmp

          Filesize

          64KB

        • memory/4720-49-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-48-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-47-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-44-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-100-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-101-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-102-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-45-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-128-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-129-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-130-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-131-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB

        • memory/4720-132-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-133-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-134-0x00007FF935AB0000-0x00007FF935CA5000-memory.dmp

          Filesize

          2.0MB

        • memory/4720-41-0x00007FF8F5B30000-0x00007FF8F5B40000-memory.dmp

          Filesize

          64KB