Analysis

  • max time kernel
    144s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2024 22:20

General

  • Target

    a9e2ab65d7f6faa65564ad05c5227246_JaffaCakes118.exe

  • Size

    61KB

  • MD5

    a9e2ab65d7f6faa65564ad05c5227246

  • SHA1

    f08915e84cf8831ec354c161689057f8d5ba23a8

  • SHA256

    ac8d46d555122c2f076e0804c0a588ee0f0a3183f6e4364394e5a4c61a1a10eb

  • SHA512

    7cfb6e91d9da3a2c8918ede594e3387e6a6751cf13cb21cbbb664da33c132e47cf2cc86ad3587a668a0c53ef6c5a370d5751f50698ce6070383ed64a56661b85

  • SSDEEP

    768:Z6gBoRjl0Gjru+A4YyYAwya9LDwUzc80gmq3oP/oDR:Z6Fl5jy+A0Yrywr/0O8/o9

Malware Config

Signatures

  • Nitro

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

  • Nitro family
  • Renames multiple (94) 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
  • 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
  • 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\a9e2ab65d7f6faa65564ad05c5227246_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a9e2ab65d7f6faa65564ad05c5227246_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:1404
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:572
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1404-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB

  • memory/1404-1-0x0000000000CB0000-0x0000000000CC6000-memory.dmp

    Filesize

    88KB

  • memory/1404-2-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/1404-19-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB

  • memory/1404-21-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/1404-102-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/1404-103-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB