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Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 06:14

General

  • Target

    8e6c0da213c278e63ae692a8dafe15e9.exe

  • Size

    60KB

  • MD5

    8e6c0da213c278e63ae692a8dafe15e9

  • SHA1

    f8e74cbbb667e0d60699e7b19ce4b688a468f082

  • SHA256

    602908a365ea6602535c825d2b7423ecb4a4ce5597b3114be289794a7a54d7ca

  • SHA512

    09d7d811aa5d1bf9414417bc6cd5e45758ca0e47e172e8b8c65c16e390d6641a5b59dcb01737425ce840075e81da382cea744bcde185070a862164de92fae3f1

  • SSDEEP

    768:POucKn7n1JGDNANIUqLyovLDwUzc80gmq3oP/oDas:PO2GDNAPquer/0O8/oF

Malware Config

Signatures

  • Nitro

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

  • Renames multiple (81) 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) 5 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 1 IoCs
  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e6c0da213c278e63ae692a8dafe15e9.exe
    "C:\Users\Admin\AppData\Local\Temp\8e6c0da213c278e63ae692a8dafe15e9.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:4332
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:764
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 2172
      2⤵
      • Program crash
      PID:912
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 2192
      2⤵
      • Program crash
      PID:4536
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4332 -ip 4332
    1⤵
      PID:2612
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4332 -ip 4332
      1⤵
        PID:1700

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4332-0-0x0000000000550000-0x0000000000566000-memory.dmp

        Filesize

        88KB

      • memory/4332-1-0x0000000075240000-0x00000000759F0000-memory.dmp

        Filesize

        7.7MB

      • memory/4332-2-0x0000000005400000-0x00000000059A4000-memory.dmp

        Filesize

        5.6MB

      • memory/4332-3-0x0000000004F40000-0x0000000004FD2000-memory.dmp

        Filesize

        584KB

      • memory/4332-4-0x0000000005210000-0x0000000005220000-memory.dmp

        Filesize

        64KB

      • memory/4332-39-0x0000000075240000-0x00000000759F0000-memory.dmp

        Filesize

        7.7MB

      • memory/4332-45-0x0000000005210000-0x0000000005220000-memory.dmp

        Filesize

        64KB

      • memory/4332-90-0x0000000005CE0000-0x0000000005CEA000-memory.dmp

        Filesize

        40KB

      • memory/4332-91-0x0000000075240000-0x00000000759F0000-memory.dmp

        Filesize

        7.7MB