Analysis

  • max time kernel
    127s
  • max time network
    128s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/05/2024, 12:30

General

  • Target
    2542caf838203c42ae6f7a21dc2243d50367bdbaab0d14d11e6cc89a1f926927.exe
  • Size 408KB
  • Sample240507-ppm71sad52
  • SHA256 2542caf838203c42ae6f7a21dc2243d50367bdbaab0d14d11e6cc89a1f926927
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2542caf838203c42ae6f7a21dc2243d50367bdbaab0d14d11e6cc89a1f926927.exe
    "C:\Users\Admin\AppData\Local\Temp\2542caf838203c42ae6f7a21dc2243d50367bdbaab0d14d11e6cc89a1f926927.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4728
    • C:\Users\Admin\AppData\Local\Temp\u3nc.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3nc.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2732
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 2100
        3⤵
        • Program crash
        PID:2468
    • C:\Users\Admin\AppData\Local\Temp\u3nc.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3nc.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4100
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4728 -s 1212
      2⤵
      • Program crash
      PID:2972
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4728 -ip 4728
    1⤵
      PID:3260
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2732 -ip 2732
      1⤵
        PID:1012

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            Are.docx

            • Path C:\ProgramData\Are.docx
            • Size 11KB
            • SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
            • MD5 SHA1 SHA512 SSDEEP

            mozglue.dll

            • Path C:\ProgramData\mozglue.dll
            • Size 593KB
            • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
            • MD5 SHA1 SHA512 SSDEEP

            nss3.dll

            • Path C:\ProgramData\nss3.dll
            • Size 2.0MB
            • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
            • MD5 SHA1 SHA512 SSDEEP

            u3nc.0.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u3nc.0.exe
            • Size 266KB
            • SHA256 82fcbe992186cf67ca0aa2da35425353505f9f8c59e0255a64e9e40c65d94e17
            • MD5 SHA1 SHA512 SSDEEP

            u3nc.1.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u3nc.1.exe
            • Size 4.6MB
            • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
            • MD5 SHA1 SHA512 SSDEEP

            memory/1384-136-0x0000025CF4B40000-0x0000025CF4B4A000-memory.dmp

            memory/1384-149-0x0000025CF9070000-0x0000025CF907E000-memory.dmp

            memory/1384-159-0x0000025CF9AE0000-0x0000025CF9AFE000-memory.dmp

            memory/1384-158-0x0000025CF9B80000-0x0000025CF9BF6000-memory.dmp

            memory/1384-148-0x0000025CF90A0000-0x0000025CF90D8000-memory.dmp

            memory/1384-157-0x0000025CF97A0000-0x0000025CF97AC000-memory.dmp

            memory/1384-151-0x0000025CF9770000-0x0000025CF977A000-memory.dmp

            memory/1384-154-0x0000025CF9FE0000-0x0000025CFA508000-memory.dmp

            memory/1384-152-0x0000025CF9A30000-0x0000025CF9A92000-memory.dmp

            memory/1384-153-0x0000025CF9A90000-0x0000025CF9AB2000-memory.dmp

            memory/1384-130-0x0000025CD6910000-0x0000025CDA144000-memory.dmp

            memory/1384-131-0x0000025CF48D0000-0x0000025CF49DA000-memory.dmp

            memory/1384-133-0x0000025CF4740000-0x0000025CF474C000-memory.dmp

            memory/1384-134-0x0000025CF4730000-0x0000025CF4744000-memory.dmp

            memory/1384-135-0x0000025CF4760000-0x0000025CF4784000-memory.dmp

            memory/1384-150-0x0000025CF9090000-0x0000025CF9098000-memory.dmp

            memory/1384-139-0x0000025CF4CB0000-0x0000025CF4D00000-memory.dmp

            memory/1384-140-0x0000025CF4C80000-0x0000025CF4CA2000-memory.dmp

            memory/1384-138-0x0000025CF4BA0000-0x0000025CF4C52000-memory.dmp

            memory/1384-137-0x0000025CF4B60000-0x0000025CF4B8A000-memory.dmp

            memory/1384-132-0x0000025CF4720000-0x0000025CF4730000-memory.dmp

            memory/1384-141-0x0000025CDBEF0000-0x0000025CDBEFA000-memory.dmp

            memory/1384-145-0x0000025CF4D00000-0x0000025CF5000000-memory.dmp

            memory/1384-147-0x0000025CF9760000-0x0000025CF9768000-memory.dmp

            memory/2732-99-0x0000000000400000-0x0000000002AFF000-memory.dmp

            memory/2732-51-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            memory/2732-35-0x0000000000400000-0x0000000002AFF000-memory.dmp

            memory/2732-171-0x0000000000400000-0x0000000002AFF000-memory.dmp

            memory/4100-129-0x0000000000400000-0x00000000008AD000-memory.dmp

            memory/4100-100-0x0000000000400000-0x00000000008AD000-memory.dmp

            memory/4728-2-0x00000000048D0000-0x000000000493C000-memory.dmp

            memory/4728-29-0x00000000048D0000-0x000000000493C000-memory.dmp

            memory/4728-3-0x0000000000400000-0x000000000046F000-memory.dmp

            memory/4728-30-0x0000000000400000-0x000000000046F000-memory.dmp

            memory/4728-27-0x0000000000400000-0x0000000002B23000-memory.dmp

            memory/4728-1-0x0000000002E30000-0x0000000002F30000-memory.dmp