Analysis

  • max time kernel
    194s
  • max time network
    301s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/05/2024, 23:25

General

  • Target
    b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
  • Size 416KB
  • Sample240509-3efbbada7w
  • SHA256 b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7
  • 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).

  • 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 19 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\b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe
    "C:\Users\Admin\AppData\Local\Temp\b97edba2e0e81b4cc7d99a6776f80d50ce46952680c71b06428f6a3206c366f7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3936
    • C:\Users\Admin\AppData\Local\Temp\u31c.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u31c.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1724
    • C:\Users\Admin\AppData\Local\Temp\u31c.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u31c.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4356
      • 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:3980

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

        u31c.0.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u31c.0.exe
        • Size 206KB
        • SHA256 211c34660898480e0777c6ef6f61bf2111f6550e00b40cab859543d567dc455a
        • MD5 SHA1 SHA512 SSDEEP

        u31c.1.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u31c.1.exe
        • Size 4.6MB
        • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
        • MD5 SHA1 SHA512 SSDEEP

        nss3.dll

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

        memory/1724-51-0x0000000000400000-0x0000000002AF1000-memory.dmp

        memory/1724-149-0x0000000000400000-0x0000000002AF1000-memory.dmp

        memory/1724-65-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/1724-139-0x0000000000400000-0x0000000002AF1000-memory.dmp

        memory/3936-15-0x0000000002CB0000-0x0000000002D1C000-memory.dmp

        memory/3936-14-0x0000000000400000-0x0000000002B25000-memory.dmp

        memory/3936-16-0x0000000000400000-0x000000000046F000-memory.dmp

        memory/3936-3-0x0000000000400000-0x000000000046F000-memory.dmp

        memory/3936-2-0x0000000002CB0000-0x0000000002D1C000-memory.dmp

        memory/3936-1-0x0000000002D50000-0x0000000002E50000-memory.dmp

        memory/3980-97-0x0000029E574F0000-0x0000029E574FA000-memory.dmp

        memory/3980-98-0x0000029E57510000-0x0000029E57572000-memory.dmp

        memory/3980-60-0x0000029E392F0000-0x0000029E392FA000-memory.dmp

        memory/3980-61-0x0000029E51B00000-0x0000029E51B2A000-memory.dmp

        memory/3980-62-0x0000029E52190000-0x0000029E52242000-memory.dmp

        memory/3980-63-0x0000029E51CA0000-0x0000029E51CF0000-memory.dmp

        memory/3980-64-0x0000029E51B60000-0x0000029E51B82000-memory.dmp

        memory/3980-59-0x0000029E39330000-0x0000029E39354000-memory.dmp

        memory/3980-92-0x0000029E52240000-0x0000029E52540000-memory.dmp

        memory/3980-88-0x0000029E39300000-0x0000029E3930A000-memory.dmp

        memory/3980-94-0x0000029E56360000-0x0000029E56368000-memory.dmp

        memory/3980-95-0x0000029E563E0000-0x0000029E56418000-memory.dmp

        memory/3980-96-0x0000029E563C0000-0x0000029E563C8000-memory.dmp

        memory/3980-58-0x0000029E39210000-0x0000029E39224000-memory.dmp

        memory/3980-99-0x0000029E57570000-0x0000029E57592000-memory.dmp

        memory/3980-55-0x0000029E51E50000-0x0000029E51F5A000-memory.dmp

        memory/3980-100-0x0000029E57AD0000-0x0000029E57FF6000-memory.dmp

        memory/3980-103-0x0000029E57500000-0x0000029E5750C000-memory.dmp

        memory/3980-104-0x0000029E57650000-0x0000029E576C6000-memory.dmp

        memory/3980-111-0x0000029E575B0000-0x0000029E575CE000-memory.dmp

        memory/3980-56-0x0000029E37940000-0x0000029E37950000-memory.dmp

        memory/3980-57-0x0000029E39310000-0x0000029E3931C000-memory.dmp

        memory/3980-54-0x0000029E33D20000-0x0000029E37554000-memory.dmp

        memory/4356-53-0x0000000000400000-0x00000000008AD000-memory.dmp

        memory/4356-52-0x0000000000400000-0x00000000008AD000-memory.dmp