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Overview

overview

10

Static

static

5

8cf5981ebc...18.exe

windows7-x64

10

8cf5981ebc...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 05:01

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General

  • Target

    8cf5981ebcd114872f1f286b84158d74_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    8cf5981ebcd114872f1f286b84158d74

  • SHA1

    cda802fcfd5bb56d56abc157d07d1d5c3e9a5508

  • SHA256

    33290ae0daab6d0c855f3c4b820ff1f9ee3a825eb01b94e2750effe2bd3f2863

  • SHA512

    e8f366244d9b02cb196d812f49ac12fe44adfadec6d458cf7848729c0e1c6c17b8de0ada48927779b3b67c4b45934738308dd667898343a3476564609d3f7181

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6w:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5v

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • 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
    persistence
  • AutoIT Executable 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cf5981ebcd114872f1f286b84158d74_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8cf5981ebcd114872f1f286b84158d74_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • 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:2004
    • C:\Windows\SysWOW64\tatoechiwy.exe
      tatoechiwy.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
      • Loads dropped DLL
      • 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:2204
      • C:\Windows\SysWOW64\svxuzhus.exe
        C:\Windows\system32\svxuzhus.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2588
    • C:\Windows\SysWOW64\hefvthkyrqjuftz.exe
      hefvthkyrqjuftz.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2636
    • C:\Windows\SysWOW64\svxuzhus.exe
      svxuzhus.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2688
    • C:\Windows\SysWOW64\obkkbanzzzsjg.exe
      obkkbanzzzsjg.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2788
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1604

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
      Filesize

      20KB

      MD5

      9395aabe4540a9f0211ee4ed2a643646

      SHA1

      478a2e1b945041f51c7890ca138c488710ec4c2c

      SHA256

      72d6f51226899b70dd3d609d1fb8109ef1bd79ff43445a4661efe204b62e22f8

      SHA512

      d163cca7f1b39d1d948cf2f5c87ca0416783799bdbce8e6c36ce1f2ba900e671f4e7be54f091a99011ac3320949ca26a71aead3087d3cac36fc4d5861c01497a

      Download Submit

    • C:\Users\Admin\Desktop\SetConvert.doc.exe
      Filesize

      512KB

      MD5

      d469b139e9aef2b94c520a66e5783ea3

      SHA1

      fd314217d363eac7af41f415ffae497d9830f920

      SHA256

      2ca927bad0cb005e84c70d714a94d1a3c6f0b2b59bd411b2ec2efc7190e8b163

      SHA512

      1acc5dee6f179b99e2a367c71ac0c62d8bdf86c518f3cf4988642b93afdc1ff932f6e6a9704f8448a228023f182c4b736ba596897b70af8666d4dc514c7d7544

      Download Submit

    • C:\Windows\SysWOW64\hefvthkyrqjuftz.exe
      Filesize

      512KB

      MD5

      ee8847253e99c3265e76300d243db148

      SHA1

      3ed8aa9f058e7677ddf0afa82a4784545cf2abbb

      SHA256

      915f163a1260abb8a8cef4c4e20b435e9873932e28295b7247d5b6dd11dd4f88

      SHA512

      8c123d850d952aa2f188c0f93b80d939e389719ac78852feec978f557378fa36201f13a1b0e515981cba31935e4e24d9028f1e63022810970307b513f618d5e8

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    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

      Download Submit

    • \Windows\SysWOW64\obkkbanzzzsjg.exe
      Filesize

      512KB

      MD5

      b1806bd6a5ff3544461819355f07d694

      SHA1

      c0bc4c25aa2558451cb2d1fd92e382bfcd73e923

      SHA256

      9c2586fa0c3f099075761e827346b51c8deeeaa53a7a48ac9684b9c46ddcab1c

      SHA512

      77c79c6e864d0d23470139a9c20f99ce0b449272695f07039fb256f5662c42d6b9a03940a8c740286feac6716f8f7b9062a05a9d47f3bfa8b65360dcfd19a5b4

      Download Submit

    • \Windows\SysWOW64\svxuzhus.exe
      Filesize

      512KB

      MD5

      cc4e95dde8c31719a150bd98f6f597d7

      SHA1

      714d9d873c46999cd50485a05f28878d140a080d

      SHA256

      cb33f5a923401d0746b1c69b5878b485fad956086dcbda18b0c7192404ceec70

      SHA512

      649b2016dab8e1052902cb6e27865dee69206da78c3be993125748da389878bbd1c08fee77e7116ec12470781e41c7796c47166f9c50621054b31402fb196ede

      Download Submit

    • \Windows\SysWOW64\tatoechiwy.exe
      Filesize

      512KB

      MD5

      e815765cf871e5bc64799dfd34842e1e

      SHA1

      067f6e0fe25a1da0f007467512631770163ba700

      SHA256

      0f9a1b0a938e8e95c913aae2ede047d257f4c7fe890c71157289b72cba63644b

      SHA512

      42ef2292e4cc826f1795dc86733817388eca4b00f9cf00c8bc02b845f0668180abd31202923c014b0e9442e10c41b81624fac877eff0c2a861cb7a935d70f471

      Download Submit

    • memory/2004-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

      Download

    • memory/2436-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2436-99-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download