Analysis

  • max time kernel
    150s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2024 11:31

General

  • Target

    ccb8b817085d6383614156053979e81b_JaffaCakes118.exe

  • Size

    989KB

  • MD5

    ccb8b817085d6383614156053979e81b

  • SHA1

    924db1dab545f9d08b47093d342d024217607d1c

  • SHA256

    f55f1629d0ce8fefbc36ec5ec8f108485e494363531f372f4735186aa4c1bc85

  • SHA512

    df6bab868826f108712079b126382541f168d855e811860569099b3daf41a289472302016c61fdd40555d4472b4d75efa4667a44b00c97d5e1b77f04d415499e

  • SSDEEP

    24576:ErYUhzRsCg6Yn++QKSWoxc3ukISy9fezY0pc7uh/f:o+Cg6KbbjUkISAe5pSud

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main payload 8 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ccb8b817085d6383614156053979e81b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ccb8b817085d6383614156053979e81b_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2576
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe
        "C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2156
        • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe
          "C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:2812
        • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe
          "C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe" 2 2812 259515822
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\appdata\fkshsks.exe

    Filesize

    989KB

    MD5

    ccb8b817085d6383614156053979e81b

    SHA1

    924db1dab545f9d08b47093d342d024217607d1c

    SHA256

    f55f1629d0ce8fefbc36ec5ec8f108485e494363531f372f4735186aa4c1bc85

    SHA512

    df6bab868826f108712079b126382541f168d855e811860569099b3daf41a289472302016c61fdd40555d4472b4d75efa4667a44b00c97d5e1b77f04d415499e

  • memory/2156-21-0x0000000000570000-0x0000000000571000-memory.dmp

    Filesize

    4KB

  • memory/2156-33-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/2156-18-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2576-1-0x0000000001C60000-0x0000000001C71000-memory.dmp

    Filesize

    68KB

  • memory/2576-3-0x0000000001C80000-0x0000000001C81000-memory.dmp

    Filesize

    4KB

  • memory/2576-0-0x00000000003A0000-0x00000000003A1000-memory.dmp

    Filesize

    4KB

  • memory/2576-6-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/2812-32-0x0000000001E40000-0x0000000001EDA000-memory.dmp

    Filesize

    616KB

  • memory/2812-47-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-55-0x0000000005940000-0x0000000005954000-memory.dmp

    Filesize

    80KB

  • memory/2812-34-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-51-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-31-0x0000000001E40000-0x0000000001EDA000-memory.dmp

    Filesize

    616KB

  • memory/2812-30-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-29-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-28-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-46-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-24-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/2812-50-0x0000000002560000-0x00000000025A4000-memory.dmp

    Filesize

    272KB

  • memory/2900-48-0x0000000001FE0000-0x0000000001FF1000-memory.dmp

    Filesize

    68KB

  • memory/2900-53-0x0000000000400000-0x00000000004FE000-memory.dmp

    Filesize

    1016KB

  • memory/2904-4-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2904-7-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB