Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-08-2023 22:17

General

  • Target

    DiscordNitroGen.exe

  • Size

    60KB

  • MD5

    1086e604bdc2930920fcb35f8237522c

  • SHA1

    b5219f22e37266ecc867cc6ea8af22a4e18ba5e2

  • SHA256

    58bd3bfdd4b83aaa9f723ee5c4a5d22b434074d7ad03f4729aba8ca7d6bb4cba

  • SHA512

    68ac7fc8603ebc209c906385c1f80bb266ce238711e3cd667559265f83a378da0ae0a5653f9027e1ac3c20f7c792a60efa8ccc0da1ef09051bc359dd214b36fc

  • SSDEEP

    768:ZOucKn7n1JGDfANIUIJ8LDwUzc80gmq3oP/oDT:ZO2GDfAPJr/0O8/o/

Malware Config

Signatures

  • Nitro

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

  • 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
  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DiscordNitroGen.exe
    "C:\Users\Admin\AppData\Local\Temp\DiscordNitroGen.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:2392
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1520
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2216
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2392 -s 2204
      2⤵
      • Program crash
      PID:1752
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2392 -s 2100
      2⤵
      • Program crash
      PID:4252
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:808
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2392 -ip 2392
    1⤵
      PID:1520
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2392 -ip 2392
      1⤵
        PID:4340
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
        1⤵
          PID:3284
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\aria-debug-4212.log
          1⤵
            PID:4860

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\DiscordNitroGen.exe

            Filesize

            60KB

            MD5

            1086e604bdc2930920fcb35f8237522c

            SHA1

            b5219f22e37266ecc867cc6ea8af22a4e18ba5e2

            SHA256

            58bd3bfdd4b83aaa9f723ee5c4a5d22b434074d7ad03f4729aba8ca7d6bb4cba

            SHA512

            68ac7fc8603ebc209c906385c1f80bb266ce238711e3cd667559265f83a378da0ae0a5653f9027e1ac3c20f7c792a60efa8ccc0da1ef09051bc359dd214b36fc

          • memory/808-157-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-156-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-151-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-152-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-155-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-144-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-146-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-145-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-153-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/808-154-0x000001EDD9760000-0x000001EDD9761000-memory.dmp

            Filesize

            4KB

          • memory/2392-134-0x0000000074510000-0x0000000074CC0000-memory.dmp

            Filesize

            7.7MB

          • memory/2392-136-0x00000000051C0000-0x0000000005252000-memory.dmp

            Filesize

            584KB

          • memory/2392-143-0x0000000074510000-0x0000000074CC0000-memory.dmp

            Filesize

            7.7MB

          • memory/2392-135-0x0000000005690000-0x0000000005C34000-memory.dmp

            Filesize

            5.6MB

          • memory/2392-133-0x00000000007D0000-0x00000000007E6000-memory.dmp

            Filesize

            88KB

          • memory/2392-161-0x0000000005180000-0x0000000005190000-memory.dmp

            Filesize

            64KB

          • memory/2392-221-0x0000000005F30000-0x0000000005F3A000-memory.dmp

            Filesize

            40KB

          • memory/2392-222-0x0000000074510000-0x0000000074CC0000-memory.dmp

            Filesize

            7.7MB

          • memory/2392-137-0x0000000005180000-0x0000000005190000-memory.dmp

            Filesize

            64KB