Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 05:04

General

  • Target

    046e9e8a98460e27abfb541b1c6b381e_JaffaCakes118.exe

  • Size

    513KB

  • MD5

    046e9e8a98460e27abfb541b1c6b381e

  • SHA1

    1726b747e18c28e940c0af1f7ba75ed0b0e442fa

  • SHA256

    c1f6785de4e9cfb7b395b23354a873ed23b273c7a53e6891ef84f2a63a9c2c1f

  • SHA512

    617053922fd5033418101cdc41599fdef93bd084e3d6b5eebb93554c1d8fc93dd04b718a19f5947bc95724b564343ad1d26b5d5aa83e93030da65bc3ba600721

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6P: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
  • 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.

  • 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 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
  • 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\046e9e8a98460e27abfb541b1c6b381e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\046e9e8a98460e27abfb541b1c6b381e_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:1620
    • C:\Windows\SysWOW64\wjutbhkgji.exe
      wjutbhkgji.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:2764
      • C:\Windows\SysWOW64\xhaymgzi.exe
        C:\Windows\system32\xhaymgzi.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:2464
    • C:\Windows\SysWOW64\waugshhfzdffjmt.exe
      waugshhfzdffjmt.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2800
    • C:\Windows\SysWOW64\xhaymgzi.exe
      xhaymgzi.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:2668
    • C:\Windows\SysWOW64\ejmbxpvpzryrg.exe
      ejmbxpvpzryrg.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2756
    • 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:2504
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2416

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Defense Evasion

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Modify Registry

    7
    T1112

    Impair Defenses

    2
    T1562

    Disable or Modify Tools

    2
    T1562.001

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      513KB

      MD5

      be82bae10b60292b2f8324e891cd8663

      SHA1

      15c1b0348bd3bb6a74df2a02416df1e06aed7801

      SHA256

      ccf929d6bfefb514e6c26a5fa33f1b09a52863dd8d93d3f9da44a365b53fb964

      SHA512

      9785d3f37719784d2e5e28f7e2d412a481242c7a869d0223f36b631bbfb67b9ae11b90d3ca149f170a8462fe300463a51746cecf796e84217e9be7a5ee39f697

    • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
      Filesize

      64B

      MD5

      d508eafb5fd52746d888fbca56b41715

      SHA1

      7a916fb77ba1cdf98b245703278059b74a1f8851

      SHA256

      5d56831285e9647b6907d510e56d76e8bb0a81e4442c47c28f90f08965926e97

      SHA512

      fb162a28e59cfcdf6a30610926acc9b2761ab6634f3a5b2eb54a0f9c965fb48d4f7ae3c6a4c93002649e2d06fdcaccaea32d44116dd47d527f5b75b1579ee052

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

      20KB

      MD5

      6068f19778560ae97f4b307ea6497e10

      SHA1

      38e02e93b05f4779d1aaf50f6b8098b5b684829c

      SHA256

      fda948275dc32cd83ff97d5238728efe8eb33fb93834fbe88863777eb0fa566a

      SHA512

      b5265adc5b41306bf48b38306097a8edeb5ccd620556b43e389ea8860b88a79543f2f4d8939b7d78f821890fbad11b991235708bed5c6571c68b6fa109529ad7

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

      513KB

      MD5

      0d3b5a73a3eaa71f14664b6c31c9029c

      SHA1

      1a7ff8467e879d6384e503e393bf14b8fcc88a6b

      SHA256

      5d5287f3c8dec74c53bf3993b4ca0f843d0b4da7a08eda424d4f2a95e1669920

      SHA512

      70bca92f8a3e907922e378cd3487090a19db89bf14175b9b77ed81a72b7de8d075020a184caaf67356f8a03975808cd9036817cb809e0f8538961a205ff584b4

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

      513KB

      MD5

      69238ca46464ae18a176d2a160ea6fe6

      SHA1

      b9c2c1aaacb5473d755e9a56a6a209761f8ea51a

      SHA256

      7a3d2e7c5bc78ac98e95ffecb8272af9ad5195c164e763f064059f9c2372f76b

      SHA512

      bb7bfcd1d40a688a454fcba9a15b2fb0639832cebe57f611cf9b98584cfe264281f4bf906c69e86475a7b117e265514b53843c89ed1c3530dd4e3db1905f0b79

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

      513KB

      MD5

      7dffbf29c6746e16c8a2fbd655bb444f

      SHA1

      f75f491767de8979a705ef6326519c3d030b76ed

      SHA256

      a347a32a831d3a7e2ecb11feea7c41d757fa679df7fb0746b95c6f698faadb6a

      SHA512

      de85e6a291cc6729073da81db6d4878310adbf2f4c89db75c920d917cbc7ba19e9b1b4771e7211f315c2bb69819ffd1c9e9f0bc65dc6964d38d3aceb8cc69cbf

    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\wjutbhkgji.exe
      Filesize

      513KB

      MD5

      92e4c01e4e4f43fe7fd427d0441dae9d

      SHA1

      813a5bada15ae05f4cd5f90d3127722074f8dd66

      SHA256

      d3ebeafb5ca57b10a9198d05c97189a49ff08497aa85310b9a148c03916f5e87

      SHA512

      969d34c4cabb1cc311df1441fc729f4ef90b4f571c39711404bc582311185dfaec4d5cd49235b62f66f0f6de095ee56f01badd9c19b4dd0a2aaaa6dec0af57a0

    • memory/1620-0-0x0000000000400000-0x0000000000496000-memory.dmp
      Filesize

      600KB

    • memory/2504-45-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/2504-94-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB