Analysis

  • max time kernel
    135s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 11:43

General

  • Target

    2183534537e54d7b42c32edbe091ad459f9c323a12092925527e1a45070ca61f.exe

  • Size

    386KB

  • MD5

    9307ef90f4e90897e00d4c071fa7db83

  • SHA1

    4f80fcb1c62dd9c05bfdc26733899acdd263e0d0

  • SHA256

    2183534537e54d7b42c32edbe091ad459f9c323a12092925527e1a45070ca61f

  • SHA512

    605d032e9424d7e3df3bc6887f5840ba6b53d83686bba256865add62903a8d5124189a6737e74668d06919b6c587d55b9591e78b918810f53488e299bc5cafc2

  • SSDEEP

    6144:TcykrZfMtgEBXGx0Xy5gul0n4Qgf3ONjMMejZxxXx+0jTw3M:TcyktfW/tXZbgf3ONj7elxJw3M

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 26 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\2183534537e54d7b42c32edbe091ad459f9c323a12092925527e1a45070ca61f.exe
    "C:\Users\Admin\AppData\Local\Temp\2183534537e54d7b42c32edbe091ad459f9c323a12092925527e1a45070ca61f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3316
    • C:\Users\Admin\AppData\Local\Temp\u2k4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2k4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2332
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 2248
        3⤵
        • Program crash
        PID:4364
    • C:\Users\Admin\AppData\Local\Temp\u2k4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2k4.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:336
      • 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:3024
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 1208
      2⤵
      • Program crash
      PID:2852
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3316 -ip 3316
    1⤵
      PID:388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2332 -ip 2332
      1⤵
        PID:3616

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Are.docx

        Filesize

        11KB

        MD5

        a33e5b189842c5867f46566bdbf7a095

        SHA1

        e1c06359f6a76da90d19e8fd95e79c832edb3196

        SHA256

        5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

        SHA512

        f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

        Filesize

        2KB

        MD5

        2d27e350ba4e1790aef6c3148ee772b9

        SHA1

        77089dbe27953a5a8b6639b1dd8dffe487d4227f

        SHA256

        44e999fbfee5035f3fbbb814ab9fc9a41c3ae1c9abfea5c94b264fc8c232088d

        SHA512

        ee02c637ecda478ae2b954dfe25bc226cf50bbd3af83a56a3befa29fe7c0a9ba994bf2dc9d877c224179817d849923bceb0bc32cf435aed870e06f72973d7166

      • C:\Users\Admin\AppData\Local\Temp\u2k4.0.exe

        Filesize

        245KB

        MD5

        c367bb32189579c56bf39dca67f62869

        SHA1

        8f82da4069c9ad6859a457b550369db21c284423

        SHA256

        6bfc504449a39316188b90599aa225fef46e6be74d2283725f48bcb2860ec1ca

        SHA512

        a69e2e46475f73fe8bde1ab58a1e48afac1bc7a5cb43093ebcde397cb4086e1f529fd38d534e8da5c0d268e66fe5836a25746f41cbd3293e54cd5dd8cc246dc5

      • C:\Users\Admin\AppData\Local\Temp\u2k4.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/336-117-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/336-129-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2332-25-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/2332-131-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/2332-33-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2332-78-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/2332-14-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/2332-13-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/2332-172-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/3024-135-0x000002707B8B0000-0x000002707B8C4000-memory.dmp

        Filesize

        80KB

      • memory/3024-146-0x000002707BE80000-0x000002707C180000-memory.dmp

        Filesize

        3.0MB

      • memory/3024-130-0x000002705CBB0000-0x00000270603E4000-memory.dmp

        Filesize

        56.2MB

      • memory/3024-169-0x000002707FF80000-0x000002707FF9E000-memory.dmp

        Filesize

        120KB

      • memory/3024-132-0x000002707BB30000-0x000002707BC3A000-memory.dmp

        Filesize

        1.0MB

      • memory/3024-134-0x000002707B8C0000-0x000002707B8CC000-memory.dmp

        Filesize

        48KB

      • memory/3024-133-0x000002707A9A0000-0x000002707A9B0000-memory.dmp

        Filesize

        64KB

      • memory/3024-159-0x0000027080000000-0x0000027080076000-memory.dmp

        Filesize

        472KB

      • memory/3024-136-0x000002707B920000-0x000002707B944000-memory.dmp

        Filesize

        144KB

      • memory/3024-138-0x000002707B970000-0x000002707B99A000-memory.dmp

        Filesize

        168KB

      • memory/3024-137-0x000002707B940000-0x000002707B94A000-memory.dmp

        Filesize

        40KB

      • memory/3024-139-0x000002707BD80000-0x000002707BE32000-memory.dmp

        Filesize

        712KB

      • memory/3024-140-0x000002707BE30000-0x000002707BE80000-memory.dmp

        Filesize

        320KB

      • memory/3024-141-0x000002707B9E0000-0x000002707BA02000-memory.dmp

        Filesize

        136KB

      • memory/3024-142-0x000002707B950000-0x000002707B95A000-memory.dmp

        Filesize

        40KB

      • memory/3024-158-0x00000270011B0000-0x00000270011BC000-memory.dmp

        Filesize

        48KB

      • memory/3024-148-0x000002707FEF0000-0x000002707FEF8000-memory.dmp

        Filesize

        32KB

      • memory/3024-150-0x000002707FF00000-0x000002707FF0E000-memory.dmp

        Filesize

        56KB

      • memory/3024-149-0x000002707FF40000-0x000002707FF78000-memory.dmp

        Filesize

        224KB

      • memory/3024-151-0x000002707FF10000-0x000002707FF18000-memory.dmp

        Filesize

        32KB

      • memory/3024-154-0x0000027001190000-0x00000270011B2000-memory.dmp

        Filesize

        136KB

      • memory/3024-153-0x0000027001420000-0x0000027001482000-memory.dmp

        Filesize

        392KB

      • memory/3024-152-0x0000027001170000-0x000002700117A000-memory.dmp

        Filesize

        40KB

      • memory/3024-155-0x00000270019B0000-0x0000027001ED8000-memory.dmp

        Filesize

        5.2MB

      • memory/3316-30-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/3316-2-0x0000000002700000-0x000000000276C000-memory.dmp

        Filesize

        432KB

      • memory/3316-1-0x0000000002930000-0x0000000002A30000-memory.dmp

        Filesize

        1024KB

      • memory/3316-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3316-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB