Analysis

  • max time kernel
    137s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 10:07

General

  • Target

    38feae3c8916d00891fd5338901a2798ad5ce6eb72b29c15515b3f2093e6c237.exe

  • Size

    417KB

  • MD5

    0555b058b467a98642f269a4813ff842

  • SHA1

    e625fa04294d68a5deede8959a83cfeb8f8bff80

  • SHA256

    38feae3c8916d00891fd5338901a2798ad5ce6eb72b29c15515b3f2093e6c237

  • SHA512

    9d4875cdeaf814df36d30340f28bee221a6a6f6c486628f3f2f11a120f13221ae6f9d9ea27c80936144523f116aa1b51a5db73333d1875dc252be86b6f8c62a1

  • SSDEEP

    12288:0H9S9mUikIgN8hRxsG207aR7FPDROmjLtNeoDF:0d7mkRH7MJbjL5F

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 30 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\38feae3c8916d00891fd5338901a2798ad5ce6eb72b29c15515b3f2093e6c237.exe
    "C:\Users\Admin\AppData\Local\Temp\38feae3c8916d00891fd5338901a2798ad5ce6eb72b29c15515b3f2093e6c237.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\u3wo.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3wo.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3540
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3540 -s 1972
        3⤵
        • Program crash
        PID:3264
    • C:\Users\Admin\AppData\Local\Temp\u3wo.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3wo.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:4484
      • 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:1132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 1224
      2⤵
      • Program crash
      PID:3644
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5064 -ip 5064
    1⤵
      PID:4168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3540 -ip 3540
      1⤵
        PID:3688

      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

        7c321b7b107d026778ef7296ed28ffca

        SHA1

        b77791dd3a4bc0c3d208f38704864b72aba26f71

        SHA256

        7431293c2322f599a82710bf15d659af5a04c16d9c1b665e640976d0fa8d2a9b

        SHA512

        3f14b3c76ae918dcfcebdaf40552e955a06267ee2567ea6b4e0af26f45514cae03f594153fdebbac2735df89dfbe5edcb7694ef5881fe51fee1dccca34c52308

      • C:\Users\Admin\AppData\Local\Temp\u3wo.0.exe

        Filesize

        275KB

        MD5

        4d59827a760364256f740c2cad58d8f6

        SHA1

        5a8f9783ae132ffeff811601207ed7b92d7e38db

        SHA256

        10b53636b794b111435f1213332cb9e36455457d51748f9057e893e0b93ca654

        SHA512

        2acf56000787d5da0476b2959c189abdf01a8bef0badb38607f3d1a92ea42cc8564ef29684f73f49683fbc49d54d6a6e8e05c64d00ce931a45435b3590bb8f1f

      • C:\Users\Admin\AppData\Local\Temp\u3wo.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1132-90-0x0000016A7D3A0000-0x0000016A7D3AC000-memory.dmp

        Filesize

        48KB

      • memory/1132-80-0x0000016A7BDC0000-0x0000016A7BDC8000-memory.dmp

        Filesize

        32KB

      • memory/1132-92-0x0000016A78430000-0x0000016A7844E000-memory.dmp

        Filesize

        120KB

      • memory/1132-91-0x0000016A7D460000-0x0000016A7D4D6000-memory.dmp

        Filesize

        472KB

      • memory/1132-87-0x0000016A7DB90000-0x0000016A7E0B8000-memory.dmp

        Filesize

        5.2MB

      • memory/1132-86-0x0000016A7D360000-0x0000016A7D382000-memory.dmp

        Filesize

        136KB

      • memory/1132-63-0x0000016A58E40000-0x0000016A5C674000-memory.dmp

        Filesize

        56.2MB

      • memory/1132-64-0x0000016A77C30000-0x0000016A77D3A000-memory.dmp

        Filesize

        1.0MB

      • memory/1132-66-0x0000016A76BE0000-0x0000016A76BEC000-memory.dmp

        Filesize

        48KB

      • memory/1132-65-0x0000016A5E290000-0x0000016A5E2A0000-memory.dmp

        Filesize

        64KB

      • memory/1132-67-0x0000016A76BD0000-0x0000016A76BE4000-memory.dmp

        Filesize

        80KB

      • memory/1132-68-0x0000016A76C00000-0x0000016A76C24000-memory.dmp

        Filesize

        144KB

      • memory/1132-69-0x0000016A5E3C0000-0x0000016A5E3CA000-memory.dmp

        Filesize

        40KB

      • memory/1132-70-0x0000016A77BF0000-0x0000016A77C1A000-memory.dmp

        Filesize

        168KB

      • memory/1132-71-0x0000016A78010000-0x0000016A780C2000-memory.dmp

        Filesize

        712KB

      • memory/1132-72-0x0000016A780C0000-0x0000016A78110000-memory.dmp

        Filesize

        320KB

      • memory/1132-73-0x0000016A77D70000-0x0000016A77D92000-memory.dmp

        Filesize

        136KB

      • memory/1132-74-0x0000016A5E3D0000-0x0000016A5E3DA000-memory.dmp

        Filesize

        40KB

      • memory/1132-78-0x0000016A78110000-0x0000016A78410000-memory.dmp

        Filesize

        3.0MB

      • memory/1132-85-0x0000016A7D600000-0x0000016A7D662000-memory.dmp

        Filesize

        392KB

      • memory/1132-81-0x0000016A7C4D0000-0x0000016A7C508000-memory.dmp

        Filesize

        224KB

      • memory/1132-82-0x0000016A7C490000-0x0000016A7C49E000-memory.dmp

        Filesize

        56KB

      • memory/1132-83-0x0000016A7C4B0000-0x0000016A7C4B8000-memory.dmp

        Filesize

        32KB

      • memory/1132-84-0x0000016A7D5E0000-0x0000016A7D5EA000-memory.dmp

        Filesize

        40KB

      • memory/3540-164-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3540-182-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3540-181-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3540-173-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3540-94-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3540-95-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4484-62-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4484-51-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/5064-1-0x0000000002E50000-0x0000000002F50000-memory.dmp

        Filesize

        1024KB

      • memory/5064-2-0x0000000002DB0000-0x0000000002E1C000-memory.dmp

        Filesize

        432KB

      • memory/5064-9-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/5064-28-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/5064-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5064-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5064-30-0x0000000002DB0000-0x0000000002E1C000-memory.dmp

        Filesize

        432KB