Analysis

  • max time kernel
    144s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-10-2024 16:19

General

  • Target

    227a73d24f797b6ddc724f54992f05ce_JaffaCakes118.exe

  • Size

    64KB

  • MD5

    227a73d24f797b6ddc724f54992f05ce

  • SHA1

    05d43fa2e84bfbf14e74256b65f3070fdf640e02

  • SHA256

    13c62078b17609a57ecdf9c64e3f16fcfdac866ca58c7929326a260ccdef76b6

  • SHA512

    98916906eab6e5ed98f494c2a522c254992f7849b7324bd176e44812118dd9fd2c1c86e59930b7f645410aa72827041ff6adb3988762a78349ae8dc3dfee770c

  • SSDEEP

    768:UiXcvIVLDwUzc8Ugmq3oP/oDzayoiT8WldZtUn3Ahui:UQr/UO8/oCTmVl1U8ui

Malware Config

Signatures

  • Nitro

    A ransomware that demands Discord nitro gift codes to decrypt files.

  • Renames multiple (65) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 3 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\227a73d24f797b6ddc724f54992f05ce_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\227a73d24f797b6ddc724f54992f05ce_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2388-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

    Filesize

    4KB

  • memory/2388-1-0x00000000001F0000-0x0000000000206000-memory.dmp

    Filesize

    88KB

  • memory/2388-2-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2388-16-0x00000000743CE000-0x00000000743CF000-memory.dmp

    Filesize

    4KB

  • memory/2388-23-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2388-73-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2388-74-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB