Analysis

  • max time kernel
    133s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 15:33

General

  • Target

    d3c10e0da749495fd15939197907d69ad32000a022d9cfb7b0cc0278f4ba0f95.exe

  • Size

    416KB

  • MD5

    dbeff23c76d8b3f1eb724d68e20bfbee

  • SHA1

    8fa910892c44608081a87c14c83b58bbabd5370f

  • SHA256

    d3c10e0da749495fd15939197907d69ad32000a022d9cfb7b0cc0278f4ba0f95

  • SHA512

    70c9291ea75bfe4a4087401ac0bf87a9e46e891d6ea9e62823c0315c6cc12ba5dcaf526aad7a0619fd41bfb587dd1ef43c38040228590472905ab3e765f59976

  • SSDEEP

    12288:V/36Qn32mOgeVztEMz3Jx8fnLd4S3Ntcs:t7deXP8fnRTcs

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\d3c10e0da749495fd15939197907d69ad32000a022d9cfb7b0cc0278f4ba0f95.exe
    "C:\Users\Admin\AppData\Local\Temp\d3c10e0da749495fd15939197907d69ad32000a022d9cfb7b0cc0278f4ba0f95.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Users\Admin\AppData\Local\Temp\u22s.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u22s.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 1692
        3⤵
        • Program crash
        PID:2980
    • C:\Users\Admin\AppData\Local\Temp\u22s.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u22s.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:768
      • 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:4784
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 1232
      2⤵
      • Program crash
      PID:3240
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2692 -ip 2692
    1⤵
      PID:1720
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4160 -ip 4160
      1⤵
        PID:5676

      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

        10cda4ad4dbaf2b5f34eccd66e9ecb3b

        SHA1

        04f0d8cdabee890d2d2a7d05faae7711dfcf49e6

        SHA256

        bd3c986c11070d8cbd56da2ba11ce0fbba1b01f2f609a88e9744c64bc2e5141c

        SHA512

        c2996acf54abc742199b7706a296c04301afdf356cdef19dae64383d62e8679dd310379b50c630bde09e125b688aead69beed8dac22393ab0e6ddd753fc99116

      • C:\Users\Admin\AppData\Local\Temp\u22s.0.exe

        Filesize

        274KB

        MD5

        3608b528eb102409d406b2889bc04ee4

        SHA1

        8cf5126e09093bba5976826dc53801dee4921b97

        SHA256

        196a6a77a04399fd9975dbef000af4b9b94eed1585608e021e96e3a308ccc0a9

        SHA512

        9b1a81b3138fc543f597231117eb75f15cc0cb77e2d9bf013a42f2f910677d2f6b0155e63669d1847d89f14931ccd344f5aa9cd78544b94a56873b52c314d48b

      • C:\Users\Admin\AppData\Local\Temp\u22s.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/768-139-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/768-127-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2692-64-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2692-63-0x0000000001BB0000-0x0000000001C1C000-memory.dmp

        Filesize

        432KB

      • memory/2692-62-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/2692-1-0x0000000001C30000-0x0000000001D30000-memory.dmp

        Filesize

        1024KB

      • memory/2692-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2692-2-0x0000000001BB0000-0x0000000001C1C000-memory.dmp

        Filesize

        432KB

      • memory/4160-28-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4160-15-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4160-126-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4160-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4784-142-0x0000020D1E4F0000-0x0000020D1E500000-memory.dmp

        Filesize

        64KB

      • memory/4784-151-0x0000020D37620000-0x0000020D37696000-memory.dmp

        Filesize

        472KB

      • memory/4784-140-0x0000020D19010000-0x0000020D1C908000-memory.dmp

        Filesize

        57.0MB

      • memory/4784-143-0x0000020D36E80000-0x0000020D36E8C000-memory.dmp

        Filesize

        48KB

      • memory/4784-144-0x0000020D36E70000-0x0000020D36E84000-memory.dmp

        Filesize

        80KB

      • memory/4784-145-0x0000020D36E90000-0x0000020D36EB4000-memory.dmp

        Filesize

        144KB

      • memory/4784-146-0x0000020D36EB0000-0x0000020D36EBA000-memory.dmp

        Filesize

        40KB

      • memory/4784-147-0x0000020D37410000-0x0000020D374C2000-memory.dmp

        Filesize

        712KB

      • memory/4784-148-0x0000020D37020000-0x0000020D3704A000-memory.dmp

        Filesize

        168KB

      • memory/4784-149-0x0000020D374C0000-0x0000020D3753A000-memory.dmp

        Filesize

        488KB

      • memory/4784-150-0x0000020D37540000-0x0000020D375A2000-memory.dmp

        Filesize

        392KB

      • memory/4784-141-0x0000020D371C0000-0x0000020D372D0000-memory.dmp

        Filesize

        1.1MB

      • memory/4784-152-0x0000020D37010000-0x0000020D3701A000-memory.dmp

        Filesize

        40KB

      • memory/4784-156-0x0000020D376A0000-0x0000020D379A0000-memory.dmp

        Filesize

        3.0MB

      • memory/4784-158-0x0000020D3BA00000-0x0000020D3BA08000-memory.dmp

        Filesize

        32KB

      • memory/4784-159-0x0000020D3B980000-0x0000020D3B9B8000-memory.dmp

        Filesize

        224KB

      • memory/4784-160-0x0000020D3B950000-0x0000020D3B95E000-memory.dmp

        Filesize

        56KB

      • memory/4784-161-0x0000020D3CAE0000-0x0000020D3CAEA000-memory.dmp

        Filesize

        40KB

      • memory/4784-162-0x0000020D3CAF0000-0x0000020D3CB12000-memory.dmp

        Filesize

        136KB

      • memory/4784-163-0x0000020D3D040000-0x0000020D3D568000-memory.dmp

        Filesize

        5.2MB

      • memory/4784-167-0x0000020D3C860000-0x0000020D3C86C000-memory.dmp

        Filesize

        48KB

      • memory/4784-166-0x0000020D3C8B0000-0x0000020D3C900000-memory.dmp

        Filesize

        320KB

      • memory/4784-168-0x0000020D3C900000-0x0000020D3C922000-memory.dmp

        Filesize

        136KB

      • memory/4784-169-0x0000020D3C930000-0x0000020D3C94E000-memory.dmp

        Filesize

        120KB