Overview

overview

10

Static

static

5

b1cf7e43d6...18.exe

windows7-x64

10

b1cf7e43d6...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/06/2024, 04:54

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General

  • Target

    b1cf7e43d64fda44676c20214478a094_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    b1cf7e43d64fda44676c20214478a094

  • SHA1

    5bb784b29c68660a53304af622bb21a6d86aacab

  • SHA256

    784d6e86a600ecbfba13f13748578ae44e4abfbd391583b176dfd05e04a5b5bb

  • SHA512

    b0a41d796e021430c1756af518df501756ca911b3ae30cf4cd4781ef5ba4dd3bbfacd40accbb4f0174df703efc263de9b2e0750914bce745187a1f8a2f3aed17

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj68:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5d

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 7 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 47 IoCs
  • Suspicious use of SendNotifyMessage 37 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\b1cf7e43d64fda44676c20214478a094_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b1cf7e43d64fda44676c20214478a094_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:1800
    • C:\Windows\SysWOW64\faacibsush.exe
      faacibsush.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:2236
      • C:\Windows\SysWOW64\bppevwya.exe
        C:\Windows\system32\bppevwya.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:2680
    • C:\Windows\SysWOW64\lrkfcdtftexlqfm.exe
      lrkfcdtftexlqfm.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1636
    • C:\Windows\SysWOW64\bppevwya.exe
      bppevwya.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:2628
    • C:\Windows\SysWOW64\kuvtbrsxlwhym.exe
      kuvtbrsxlwhym.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2580
    • 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:2560
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe
    Filesize

    512KB

    MD5

    63f5d89f1ee5df3a9bb0fd42aed40d08

    SHA1

    2d85499a3327f54fda9858865dc25ca1cc40c334

    SHA256

    5c256fec4c8203ff6904d64e143e1b6af0d5ef845fc36f6d25935ee12e5f9aef

    SHA512

    ad28832eb6d483587f84ab1e71b2fdcb470a523e2092be1575297a59f19692a1959edbde81c6127326b338d06c5fb3baf3d384395a547128689c2ff6c6092dcb

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  • C:\Users\Admin\Documents\WaitHide.doc.exe
    Filesize

    512KB

    MD5

    0d60f2f415231bbf71eb089697cc164c

    SHA1

    090c107a0ff60559fd873a2f26fb5c76f6d87cb8

    SHA256

    91dc370bd09cd5bebc50eaece80e5cfaf40c8ee806feb26ba6e9b5343afe4668

    SHA512

    efdaf2452f572700282a8d3e1edaa168ec7aa60066b3bbe148f907930ba7d4a71dccfd5fc2949acf50d8c253d4cfddb09fadc6ac119fc2f634da1b18ee283ad6

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

    512KB

    MD5

    1e1ebdb8edab3ea075b42ee266413408

    SHA1

    86c189412be82045452d5ff17d76d03fd4fae6dc

    SHA256

    130e9a43aa8846e3c505712349215a83d2eeb9d374fd83d2eee43c5536db4847

    SHA512

    4f27a8af22987d1cd88a957f97b7b9e72b4d88b49cff2aea19d67a6a8933f98d92868c1903aaea2c1874403f470383bac83289ee27f962c971802606d1a451ff

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  • C:\Windows\mydoc.rtf
    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

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  • \Windows\SysWOW64\bppevwya.exe
    Filesize

    512KB

    MD5

    4ace05903585b2d807ab145192632bab

    SHA1

    6b0f1802f392e34a432e05c41dec9e1273207dec

    SHA256

    8ae9e3d59de84fbf10805ac1b9c6f0b047e77126f267f22faa18171aab6bf427

    SHA512

    b67fa64377f9cb2ad82338af3aeb6fbdb0c76c308026c2cfcc7193234082e0dc0a697f7d9e16ffc072a7a5e76cc05d34707ca1d45798dfea89834afdaaf0aeb8

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  • \Windows\SysWOW64\faacibsush.exe
    Filesize

    512KB

    MD5

    0a27ad7e605e5e2eee0119731023b9c7

    SHA1

    32e158f5615dd087ac4a9bfbcaec11c218a67883

    SHA256

    2dfbcffcbb95de31aaf4c30567362599d072d5ff4471173579f3ecb0035c03ea

    SHA512

    d2a13ecfa2d3de7ef049852cba69581c30577d7ef0bdffeb91e8bc2e97ad48cda18018a184405f86f3763f1a080485cc63521a6ca735cb2e171b8fce93072757

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  • \Windows\SysWOW64\kuvtbrsxlwhym.exe
    Filesize

    512KB

    MD5

    0f0b00a8b7da99af14297a3c98df9a28

    SHA1

    0a4ba7027e2167b5b610c5127ea678b540603709

    SHA256

    8c25660dd9a5d3cccfed68dc1a432ae3a6211ee25c278f06ce36aa1d58508ed1

    SHA512

    91a8f9b80d57f2adc4ce95e2298a75067ef032963ac480fe73e6b829a7d505cf5598e2397c709c28212afdb0f59455ce4f6dd6579a667fdd093a536c408cbd18

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  • memory/1400-82-0x0000000002B00000-0x0000000002B10000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1800-0-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

    Download

  • memory/2560-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

    Download