Analysis

  • max time kernel
    97s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 22:20

General

  • Target

    c1f44ba9329e37b29ae039c0fc1d1018df4009ca79879c3e48d6ae4273c174d8.exe

  • Size

    388KB

  • MD5

    89b8fa362dac3edfe558e0e157bf1d50

  • SHA1

    6d37aad731b8c02d6f079ecc0e585dc7dcb5a69d

  • SHA256

    c1f44ba9329e37b29ae039c0fc1d1018df4009ca79879c3e48d6ae4273c174d8

  • SHA512

    890ceee57afd7eb2df0f91bacb4bf0d2b7d34ded36df3e7d702858d70e6cb2fb53bfb3c5a77386e0053a68db3098e444c563160bcc48b262b021eb0fc868d875

  • SSDEEP

    12288:aG1ixU5HEhboNYNJHxqi4vdf4qLfxmGL8:aGMnhbvrHwi4vdAqL0GL8

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 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\c1f44ba9329e37b29ae039c0fc1d1018df4009ca79879c3e48d6ae4273c174d8.exe
    "C:\Users\Admin\AppData\Local\Temp\c1f44ba9329e37b29ae039c0fc1d1018df4009ca79879c3e48d6ae4273c174d8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4424
    • C:\Users\Admin\AppData\Local\Temp\u3ew.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3ew.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4968
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 340
        3⤵
        • Program crash
        PID:3936
    • C:\Users\Admin\AppData\Local\Temp\u3ew.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3ew.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:4364
      • 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:4392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 1012
      2⤵
      • Program crash
      PID:3528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4424 -ip 4424
    1⤵
      PID:3456
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4968 -ip 4968
      1⤵
        PID:1156

      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\u3ew.0.exe

        Filesize

        245KB

        MD5

        5ea66fe490011da271a673577bad5bde

        SHA1

        04191be80d32e89c876840af14ad9352a0c1eff2

        SHA256

        a8b093f291c9d435b8c9f832e7817a854e04290da381672de6234b031b2cf3a0

        SHA512

        6ae839e1e59cc1ab2abd4c8dec88cef0d1e89110614d443d6e64b99faa2dba8b1d4b9a00824cfe91f94c29e32413a7ff3448249aee342349868a0dab9bd3db97

      • C:\Users\Admin\AppData\Local\Temp\u3ew.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/4364-145-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4364-133-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4392-149-0x0000023AF2400000-0x0000023AF240C000-memory.dmp

        Filesize

        48KB

      • memory/4392-165-0x0000023AF7610000-0x0000023AF761E000-memory.dmp

        Filesize

        56KB

      • memory/4392-175-0x0000023AF8540000-0x0000023AF855E000-memory.dmp

        Filesize

        120KB

      • memory/4392-174-0x0000023AF85E0000-0x0000023AF8656000-memory.dmp

        Filesize

        472KB

      • memory/4392-173-0x0000023AF8500000-0x0000023AF850C000-memory.dmp

        Filesize

        48KB

      • memory/4392-170-0x0000023AF8D10000-0x0000023AF9238000-memory.dmp

        Filesize

        5.2MB

      • memory/4392-168-0x0000023AF8780000-0x0000023AF87E2000-memory.dmp

        Filesize

        392KB

      • memory/4392-169-0x0000023AF84E0000-0x0000023AF8502000-memory.dmp

        Filesize

        136KB

      • memory/4392-167-0x0000023AF8760000-0x0000023AF876A000-memory.dmp

        Filesize

        40KB

      • memory/4392-166-0x0000023AF7630000-0x0000023AF7638000-memory.dmp

        Filesize

        32KB

      • memory/4392-164-0x0000023AF7650000-0x0000023AF7688000-memory.dmp

        Filesize

        224KB

      • memory/4392-163-0x0000023AF6F40000-0x0000023AF6F48000-memory.dmp

        Filesize

        32KB

      • memory/4392-161-0x0000023AF3290000-0x0000023AF3590000-memory.dmp

        Filesize

        3.0MB

      • memory/4392-157-0x0000023AF2C60000-0x0000023AF2C6A000-memory.dmp

        Filesize

        40KB

      • memory/4392-146-0x0000023AECE20000-0x0000023AF0654000-memory.dmp

        Filesize

        56.2MB

      • memory/4392-147-0x0000023AF2F40000-0x0000023AF304A000-memory.dmp

        Filesize

        1.0MB

      • memory/4392-151-0x0000023AF2C40000-0x0000023AF2C64000-memory.dmp

        Filesize

        144KB

      • memory/4392-150-0x0000023AF2260000-0x0000023AF2274000-memory.dmp

        Filesize

        80KB

      • memory/4392-148-0x0000023AF2250000-0x0000023AF2260000-memory.dmp

        Filesize

        64KB

      • memory/4392-154-0x0000023AF3190000-0x0000023AF3242000-memory.dmp

        Filesize

        712KB

      • memory/4392-156-0x0000023AF2F00000-0x0000023AF2F22000-memory.dmp

        Filesize

        136KB

      • memory/4392-155-0x0000023AF3240000-0x0000023AF3290000-memory.dmp

        Filesize

        320KB

      • memory/4392-153-0x0000023AF2EA0000-0x0000023AF2ECA000-memory.dmp

        Filesize

        168KB

      • memory/4392-152-0x0000023AF2410000-0x0000023AF241A000-memory.dmp

        Filesize

        40KB

      • memory/4424-82-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4424-81-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/4424-2-0x0000000004200000-0x000000000426C000-memory.dmp

        Filesize

        432KB

      • memory/4424-55-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4424-1-0x0000000002600000-0x0000000002700000-memory.dmp

        Filesize

        1024KB

      • memory/4424-13-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/4424-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4424-15-0x0000000002600000-0x0000000002700000-memory.dmp

        Filesize

        1024KB

      • memory/4968-76-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4968-18-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4968-16-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4968-17-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4968-132-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4968-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB