Analysis

  • max time kernel
    121s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02-04-2024 22:01

General

  • Target

    984ed804482b455638e29cfa56d91e86_JaffaCakes118.exe

  • Size

    62KB

  • MD5

    984ed804482b455638e29cfa56d91e86

  • SHA1

    608e262d942f5d464a68b9ffee0c83f99b99c901

  • SHA256

    fd8b588e1ee4f98e4498e9a39c29ca2fcb974b55680139a12cccb49657da7658

  • SHA512

    999915dea839739bf03814154ae2b96e4f433166af37d4e7a234ecbce2669ee0fae11bf82b2169820d436e9d2d8b3f2a5041f84068f85b9516f3031671841690

  • SSDEEP

    768:CKsMqCXfVcWJDrM9ZkiANIUAHYLDwUzc80gmq3oP/oDM:CKsexM9ZkiAPTr/0O8/ow

Malware Config

Signatures

  • Nitro

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

  • Renames multiple (88) files with added filename extension

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

  • Reads user/profile data of web browsers 2 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\984ed804482b455638e29cfa56d91e86_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\984ed804482b455638e29cfa56d91e86_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2548
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2912-0-0x0000000000A70000-0x0000000000A86000-memory.dmp

    Filesize

    88KB

  • memory/2912-1-0x0000000074490000-0x0000000074B7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2912-2-0x0000000002080000-0x00000000020C0000-memory.dmp

    Filesize

    256KB

  • memory/2912-34-0x0000000074490000-0x0000000074B7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2912-39-0x0000000002080000-0x00000000020C0000-memory.dmp

    Filesize

    256KB

  • memory/2912-96-0x0000000002080000-0x00000000020C0000-memory.dmp

    Filesize

    256KB

  • memory/2912-97-0x0000000002080000-0x00000000020C0000-memory.dmp

    Filesize

    256KB