Overview

overview

10

Static

static

5

4ef636b8e3...18.exe

windows7-x64

10

4ef636b8e3...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    17/05/2024, 07:25

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General

  • Target

    4ef636b8e3e493c26772b1128a0ba49a_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    4ef636b8e3e493c26772b1128a0ba49a

  • SHA1

    0cbaf804dc9b5e6b2e3960a9b4a07379de281f7e

  • SHA256

    18d0075f1c7839ba59a558fadae382616bb1cbc358365ce0a2b10e16fbc46f07

  • SHA512

    7667eae2bea5433b84f1d44614825459518042615aa9a6863d405270112d221cc74880013c0bc8e70dfa6efd82a8b57642525e5d9ca71f496e9a04886c335153

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6B:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5C

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
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • 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 5 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 4 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 AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 43 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ef636b8e3e493c26772b1128a0ba49a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4ef636b8e3e493c26772b1128a0ba49a_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:2220
    • C:\Windows\SysWOW64\pofcvwrnrm.exe
      pofcvwrnrm.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:848
      • C:\Windows\SysWOW64\ddhpvfmp.exe
        C:\Windows\system32\ddhpvfmp.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2636
    • C:\Windows\SysWOW64\rknqbynchtiludc.exe
      rknqbynchtiludc.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2600
    • C:\Windows\SysWOW64\ddhpvfmp.exe
      ddhpvfmp.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:2684
    • C:\Windows\SysWOW64\nsjwogzzrsrxy.exe
      nsjwogzzrsrxy.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2624
    • 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
      PID:2472
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1604

Network

MITRE ATT&CK Enterprise v15

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Downloads

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

    512KB

    MD5

    31352646b0ea43601169f3f7c86068b7

    SHA1

    3febcbb7cd03a918ca7960c91cacda10d833b976

    SHA256

    49ba50eeafe1c89ae6de7167c84211e5239d6c6862086d537ffc0b451b7dc2b0

    SHA512

    fbcafe4002d1de3d05aa2ae9285cccbad51a7d65f6e6e10f2812ccc75aa0a8947c0e7311786553595338bd0363ec9b4296ae3a389922ef4efbf9fb8c59bcbe7b

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  • C:\Windows\mydoc.rtf
    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

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  • \Windows\SysWOW64\ddhpvfmp.exe
    Filesize

    512KB

    MD5

    d75e548191dbd0e5168d7de20c562655

    SHA1

    b1c10cfdc4a2e36293c0d5695c859552b8425d80

    SHA256

    65ea57ce665199a03fef356499f90084e70d41caf5e652a14879b7eb348f7b41

    SHA512

    26c1409f314fa2503dbfdf79a8f5ff650d00129e0c8f3d5db55bdb99edcb9a523fed365c1177cb3d258f894cf0777029362e0c5e667867407668c578bce94936

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  • \Windows\SysWOW64\nsjwogzzrsrxy.exe
    Filesize

    512KB

    MD5

    e353cf7c70dc9630b0af57ab9e9cd758

    SHA1

    699db7f7cb906a4dfe581dbee59b1c46db76e085

    SHA256

    a49f58108276456fe31f436f72d3103371023aea6016d902fcb8e27044d2f917

    SHA512

    105fc4833869b40ff19543b993170e7047e037081d408511aa2cf35f549bb9ddf8c8862cc4ab1273a0528627111894dcdf6e6b8cde20c9eaace6e87fe5566093

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  • \Windows\SysWOW64\pofcvwrnrm.exe
    Filesize

    512KB

    MD5

    4b5caa2719290328c598b8d88ff6661b

    SHA1

    1f4f197e6d7dd2ee1d8de7be7833d5b3dc5031b3

    SHA256

    0c07e31932dbc85cec5d7b5e838cec6cfb29fda98ca1e741a32eec669b39fcd0

    SHA512

    08f2a360af1e59ffbac9f2d8cf6cbfe89de0188c859dc18131e4fa432ac1ab2fc38aa4b07b0483214534689889123d6d0340a586fe34565b60da041d83edc67e

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  • memory/1604-76-0x0000000003DD0000-0x0000000003DE0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2220-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

    Download

  • memory/2472-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

    Download