Analysis

  • max time kernel
    141s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-05-2024 12:31

General

  • Target

    88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe

  • Size

    398KB

  • MD5

    51f4c436d49fa9b27b65f8daefb77a76

  • SHA1

    039dccd3fd7c1e5a5b4f60b22586c48597034e8d

  • SHA256

    88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64

  • SHA512

    bd63384fce0a548047e10b2d18ee399be3b34bb0d941cac7e5b236d76c2097bfdbc036e78c62101bd7421f6f8b6b864fd0b64bdae9a70d5acf56486a08c3d0f0

  • SSDEEP

    6144:WGuIeB32u0NksV1gwHG7zO4piTyDeDf0BRJFUydBc9qXGzRtKL1:OIeB3/0NkGSeGXO4Cye8BR3TfIqoA1

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 28 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\88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe
    "C:\Users\Admin\AppData\Local\Temp\88ea52cdac00a9b9d7fad2b2b6f32794c43ac439521413ff7de443dca40d4b64.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Users\Admin\AppData\Local\Temp\u3fg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3fg.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:916
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 916 -s 760
        3⤵
        • Program crash
        PID:2788
    • C:\Users\Admin\AppData\Local\Temp\u3fg.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3fg.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:820
      • 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:2980
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 1144
      2⤵
      • Program crash
      PID:1044
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4444 -ip 4444
    1⤵
      PID:4876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 916 -ip 916
      1⤵
        PID:1984

      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

        3KB

        MD5

        45240be645d6ddf4b936f3cef7efd0af

        SHA1

        4b6fa20033fd6f47782f9b56c68489cd93d2b262

        SHA256

        6f8aecd2f3637cf07d124d64cf9a82fc3818691c15ed9063beeaeed52a5b89e0

        SHA512

        6f32e5aa6dcde9279f379bfb50b457d6f8ffb9ee5718d6b107b5a956884f107917d12f9aa02174a99bda103491bbd591858dd1eedf99f1942d26b14a9a639f9d

      • C:\Users\Admin\AppData\Local\Temp\u3fg.0.exe

        Filesize

        276KB

        MD5

        1a399b9b2bdeb9777486e51b01cfd05c

        SHA1

        a3813f4550a23cdfbc004cac3ec5222a3c38f415

        SHA256

        89d42dfdb5860ee3c3939d8c13d6fce3c95258cff2b83bc7df88d9ac2f6b3594

        SHA512

        e409af1d504330404c89614beb0ba4116c635e4d0c3cf0a8ba108ce4332b8ba3241350b765a98198c302c181da5e2c7fafaba30927183ee4c122aa025e3d92de

      • C:\Users\Admin\AppData\Local\Temp\u3fg.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/820-144-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/820-126-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/916-16-0x0000000000400000-0x0000000002B03000-memory.dmp

        Filesize

        39.0MB

      • memory/916-17-0x0000000000400000-0x0000000002B03000-memory.dmp

        Filesize

        39.0MB

      • memory/916-15-0x0000000000400000-0x0000000002B03000-memory.dmp

        Filesize

        39.0MB

      • memory/916-21-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/916-125-0x0000000000400000-0x0000000002B03000-memory.dmp

        Filesize

        39.0MB

      • memory/916-84-0x0000000000400000-0x0000000002B03000-memory.dmp

        Filesize

        39.0MB

      • memory/916-179-0x0000000000400000-0x0000000002B03000-memory.dmp

        Filesize

        39.0MB

      • memory/2980-148-0x000002616A6C0000-0x000002616A6D0000-memory.dmp

        Filesize

        64KB

      • memory/2980-172-0x0000026173320000-0x0000026173342000-memory.dmp

        Filesize

        136KB

      • memory/2980-182-0x0000026173170000-0x000002617318E000-memory.dmp

        Filesize

        120KB

      • memory/2980-181-0x0000026173140000-0x0000026173162000-memory.dmp

        Filesize

        136KB

      • memory/2980-177-0x00000261730F0000-0x0000026173140000-memory.dmp

        Filesize

        320KB

      • memory/2980-178-0x00000261730A0000-0x00000261730AC000-memory.dmp

        Filesize

        48KB

      • memory/2980-173-0x0000026173870000-0x0000026173D98000-memory.dmp

        Filesize

        5.2MB

      • memory/2980-145-0x00000261669E0000-0x000002616A2D8000-memory.dmp

        Filesize

        57.0MB

      • memory/2980-146-0x000002616DA20000-0x000002616DB30000-memory.dmp

        Filesize

        1.1MB

      • memory/2980-171-0x0000026173080000-0x000002617308A000-memory.dmp

        Filesize

        40KB

      • memory/2980-149-0x000002616A700000-0x000002616A70C000-memory.dmp

        Filesize

        48KB

      • memory/2980-150-0x000002616A6D0000-0x000002616A6E4000-memory.dmp

        Filesize

        80KB

      • memory/2980-151-0x000002616C210000-0x000002616C234000-memory.dmp

        Filesize

        144KB

      • memory/2980-170-0x0000026172180000-0x000002617218E000-memory.dmp

        Filesize

        56KB

      • memory/2980-156-0x000002616C1F0000-0x000002616C1FA000-memory.dmp

        Filesize

        40KB

      • memory/2980-157-0x000002616D860000-0x000002616D912000-memory.dmp

        Filesize

        712KB

      • memory/2980-159-0x000002616DCA0000-0x000002616DD1A000-memory.dmp

        Filesize

        488KB

      • memory/2980-158-0x000002616DC70000-0x000002616DC9A000-memory.dmp

        Filesize

        168KB

      • memory/2980-160-0x000002616DD20000-0x000002616DD82000-memory.dmp

        Filesize

        392KB

      • memory/2980-161-0x000002616DE00000-0x000002616DE76000-memory.dmp

        Filesize

        472KB

      • memory/2980-162-0x000002616C230000-0x000002616C23A000-memory.dmp

        Filesize

        40KB

      • memory/2980-166-0x000002616DE80000-0x000002616E180000-memory.dmp

        Filesize

        3.0MB

      • memory/2980-168-0x0000026172870000-0x0000026172878000-memory.dmp

        Filesize

        32KB

      • memory/2980-169-0x00000261721B0000-0x00000261721E8000-memory.dmp

        Filesize

        224KB

      • memory/4444-2-0x0000000002B40000-0x0000000002C40000-memory.dmp

        Filesize

        1024KB

      • memory/4444-69-0x0000000000400000-0x0000000002B21000-memory.dmp

        Filesize

        39.1MB

      • memory/4444-4-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4444-1-0x0000000000400000-0x0000000002B21000-memory.dmp

        Filesize

        39.1MB

      • memory/4444-14-0x0000000000400000-0x0000000002B21000-memory.dmp

        Filesize

        39.1MB

      • memory/4444-20-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4444-3-0x00000000047B0000-0x000000000481C000-memory.dmp

        Filesize

        432KB

      • memory/4444-19-0x0000000002B40000-0x0000000002C40000-memory.dmp

        Filesize

        1024KB

      • memory/4444-70-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB