Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-05-2024 05:35

General

  • Target

    fa6b324d5c47965794efa60364058c6e347a8b2693a888bd7bc42a9fdb314793.exe

  • Size

    371KB

  • MD5

    e4329dee0206036f75440ca8e71cdc08

  • SHA1

    a1567ba91f2d6280dba52cc991896a41153c5675

  • SHA256

    fa6b324d5c47965794efa60364058c6e347a8b2693a888bd7bc42a9fdb314793

  • SHA512

    8fc4f792fa6caa466b12a024270944c24038adf2220399c19e10aacb11e52112a12197563b84a5672a17440080c8d7f6000a652998b817cc779bed98438576c2

  • SSDEEP

    6144:aURdZSI5nrUscjLhfKpWrx+5nvyIuT/GODYYTJm6:aU7ZSI5ELkpixsnluT/GOnk6

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).

  • 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 21 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\fa6b324d5c47965794efa60364058c6e347a8b2693a888bd7bc42a9fdb314793.exe
    "C:\Users\Admin\AppData\Local\Temp\fa6b324d5c47965794efa60364058c6e347a8b2693a888bd7bc42a9fdb314793.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4256
    • C:\Users\Admin\AppData\Local\Temp\u3a8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3a8.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:484
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 484 -s 2508
        3⤵
        • Program crash
        PID:3764
    • C:\Users\Admin\AppData\Local\Temp\u3a8.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3a8.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2952
      • 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:4048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4256 -s 1476
      2⤵
      • Program crash
      PID:3884
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4256 -ip 4256
    1⤵
      PID:4672
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 484 -ip 484
      1⤵
        PID:1612

      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

        b093bfb6e98c26b0c715752fde0d99cd

        SHA1

        140c9133107dc7b3af902ee2144cfadf2382530e

        SHA256

        460d3a52a7d2cdf39e77bd6b429616b3257366a89fb04311c0fbb4712e39a836

        SHA512

        d92aa468df43d394c37e2c957fba7733d5f79f161f37aaa56b69019457d19bd9511d0eb725cbd0b7ba797900b3f49da3f9700eb13782c12b377338f82679b5f0

      • C:\Users\Admin\AppData\Local\Temp\u3a8.0.exe

        Filesize

        230KB

        MD5

        ccd572a3007d968e7fc7530b369bdcf6

        SHA1

        72e0464b18e45f75f194cc5ae6f7d59e2f2d8ca6

        SHA256

        84f2c0f4db7d4f3faf88fe9fb75829b4d480f936929591df7e5b22846dcb5777

        SHA512

        b977c3cabfce519c49dad3274c6927f03bec5b502d1bde6fbfc3ebe22880434c6bcb5a19f7d0987328ff71502642680b07cb89435f5a7aafb70261fd3c2b7ebc

      • C:\Users\Admin\AppData\Local\Temp\u3a8.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/484-118-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/484-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2952-130-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4048-135-0x0000025970F20000-0x0000025970F34000-memory.dmp

        Filesize

        80KB

      • memory/4048-141-0x0000025971430000-0x0000025971452000-memory.dmp

        Filesize

        136KB

      • memory/4048-162-0x0000025970D50000-0x0000025970F03000-memory.dmp

        Filesize

        1.7MB

      • memory/4048-160-0x0000025975F10000-0x0000025975F2E000-memory.dmp

        Filesize

        120KB

      • memory/4048-159-0x0000025975FB0000-0x0000025976026000-memory.dmp

        Filesize

        472KB

      • memory/4048-131-0x0000025952E90000-0x00000259566C4000-memory.dmp

        Filesize

        56.2MB

      • memory/4048-132-0x0000025971040000-0x000002597114A000-memory.dmp

        Filesize

        1.0MB

      • memory/4048-133-0x0000025970F10000-0x0000025970F20000-memory.dmp

        Filesize

        64KB

      • memory/4048-134-0x0000025970F30000-0x0000025970F3C000-memory.dmp

        Filesize

        48KB

      • memory/4048-158-0x0000025975ED0000-0x0000025975EDC000-memory.dmp

        Filesize

        48KB

      • memory/4048-136-0x0000025970F90000-0x0000025970FB4000-memory.dmp

        Filesize

        144KB

      • memory/4048-137-0x0000025970FC0000-0x0000025970FCA000-memory.dmp

        Filesize

        40KB

      • memory/4048-138-0x00000259712B0000-0x00000259712DA000-memory.dmp

        Filesize

        168KB

      • memory/4048-139-0x00000259712E0000-0x0000025971392000-memory.dmp

        Filesize

        712KB

      • memory/4048-140-0x00000259713E0000-0x0000025971430000-memory.dmp

        Filesize

        320KB

      • memory/4048-155-0x0000025976720000-0x0000025976C48000-memory.dmp

        Filesize

        5.2MB

      • memory/4048-142-0x0000025970FD0000-0x0000025970FDA000-memory.dmp

        Filesize

        40KB

      • memory/4048-146-0x0000025971460000-0x0000025971760000-memory.dmp

        Filesize

        3.0MB

      • memory/4048-148-0x0000025975EA0000-0x0000025975EA8000-memory.dmp

        Filesize

        32KB

      • memory/4048-150-0x00000259757F0000-0x00000259757FE000-memory.dmp

        Filesize

        56KB

      • memory/4048-149-0x0000025975820000-0x0000025975858000-memory.dmp

        Filesize

        224KB

      • memory/4048-151-0x0000025975810000-0x0000025975818000-memory.dmp

        Filesize

        32KB

      • memory/4048-152-0x0000025976150000-0x000002597615A000-memory.dmp

        Filesize

        40KB

      • memory/4048-154-0x00000259761D0000-0x00000259761F2000-memory.dmp

        Filesize

        136KB

      • memory/4048-153-0x0000025976170000-0x00000259761D2000-memory.dmp

        Filesize

        392KB

      • memory/4256-26-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/4256-1-0x0000000002750000-0x0000000002850000-memory.dmp

        Filesize

        1024KB

      • memory/4256-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4256-2-0x00000000042B0000-0x000000000431C000-memory.dmp

        Filesize

        432KB

      • memory/4256-27-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB