Overview

overview

10

Static

static

5

a424c5238c...18.exe

windows7-x64

10

a424c5238c...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 06:12

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General

  • Target
    a424c5238c31a4479c490c604bc1f22c_JaffaCakes118.exe
  • Size 512KB
  • Sample240613-gybataxapd
  • SHA256 21ee3978b1acddb84b225dda7fdff9f3bf22a9e6d328c0c3150587cd7972a90c
  • MD5 SHA1 SHA512 SSDEEP
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
  • 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.

    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 9 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 19 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\a424c5238c31a4479c490c604bc1f22c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a424c5238c31a4479c490c604bc1f22c_JaffaCakes118.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:4564
    • C:\Windows\SysWOW64\hcmudfuwpx.exe
      hcmudfuwpx.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:4768
      • C:\Windows\SysWOW64\avazmufh.exe
        C:\Windows\system32\avazmufh.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2340
    • C:\Windows\SysWOW64\ablqrjytzvmvgzh.exe
      ablqrjytzvmvgzh.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2344
    • C:\Windows\SysWOW64\avazmufh.exe
      avazmufh.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3024
    • C:\Windows\SysWOW64\wleesanvowgwq.exe
      wleesanvowgwq.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3428
    • 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:704
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4204,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4196 /prefetch:8
    1⤵
      PID:1564

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          PROTTPLN.DOC.exe
          • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
          • Size 512KB
          • SHA256 4979ec3eecc123de6e61ed16b9fb1990b3e3450b9b26029cbc042d2dfbaf2277
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          PROTTPLV.DOC.exe
          • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
          • Size 512KB
          • SHA256 aa24fe174f0fd108eddc36b664de7aea5d2c2d78bf17682fc9743e3d83d5f17e
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          index.dat
          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
          • Size 239B
          • SHA256 9def83813762ad0c5f6fdd68707d43b7ccd26633b2123254272180d76bc3faaf
          • MD5 SHA1 SHA512
          Submit Download

          fb3b0dbfee58fac8.customDestinations-ms
          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
          • Size 3KB
          • SHA256 a29a08b839841abe8655ffa01a933f3cc7d3224d91999733e9e443d9ce9cdd04
          • MD5 SHA1 SHA512
          Submit Download

          fb3b0dbfee58fac8.customDestinations-ms
          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
          • Size 3KB
          • SHA256 ce988a9f9d97b0e71c8803a183a8f0c3b8012e4846bb016dbf7d33ca48ec8a9d
          • MD5 SHA1 SHA512
          Submit Download

          ablqrjytzvmvgzh.exe
          • Path C:\Windows\SysWOW64\ablqrjytzvmvgzh.exe
          • Size 512KB
          • SHA256 f379bcd054c78b376950f338ace110bf70483ee017aeafa16b80bd5ca349400f
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          avazmufh.exe
          • Path C:\Windows\SysWOW64\avazmufh.exe
          • Size 512KB
          • SHA256 606cfbb11c240337a0b1d3815497bf8f26b9db038554e01759846648ab694e08
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          hcmudfuwpx.exe
          • Path C:\Windows\SysWOW64\hcmudfuwpx.exe
          • Size 512KB
          • SHA256 45ddfe2093b87ee0a9d739e2514c7668e427898cc537789f0f3781849a20cbc9
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          wleesanvowgwq.exe
          • Path C:\Windows\SysWOW64\wleesanvowgwq.exe
          • Size 512KB
          • SHA256 0555df253c2fe0c034e7ffabf48fdf9122a6fe5bcddab7c74f2ed7c8c8ec7bb7
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          mydoc.rtf
          • Path C:\Windows\mydoc.rtf
          • Size 223B
          • SHA256 85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2
          • MD5 SHA1 SHA512
          Submit Download

          MsoIrmProtector.doc.exe
          • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
          • Size 512KB
          • SHA256 d2e6f19269b170343ed576dd7a7b624bbc349b2f24bf2c3d768779c3ca82d51e
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          MsoIrmProtector.doc.exe
          • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
          • Size 512KB
          • SHA256 91b19b82b49fcfff51c1dde0eb803e9ac1c6c2d560592e3fd70dfb2d0b282df2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/704-35-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-39-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-38-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-37-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-36-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-43-0x00007FF915D60000-0x00007FF915D70000-memory.dmp
          Download

          memory/704-40-0x00007FF915D60000-0x00007FF915D70000-memory.dmp
          Download

          memory/704-113-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-114-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-116-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/704-115-0x00007FF918250000-0x00007FF918260000-memory.dmp
          Download

          memory/4564-0-0x0000000000400000-0x0000000000496000-memory.dmp
          Download