Analysis

  • max time kernel
    131s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 07:32

General

  • Target

    9b9f6ec42265d143c0ec1b54db26f14a18e9e7c615533a6d1e565059224de98b.exe

  • Size

    387KB

  • MD5

    b17fe5c24564e1b895d0b29c5353b0da

  • SHA1

    7c67ccd5b6213b6fd5051506a7f5506277f6b9e5

  • SHA256

    9b9f6ec42265d143c0ec1b54db26f14a18e9e7c615533a6d1e565059224de98b

  • SHA512

    8cefd6e0cca27ee636de79e8e56f2c4924767efd46c28b25445872545451fdc614ed478059c8409c5f825a57fb941c68908651d03dd5f55424982498baa4ad42

  • SSDEEP

    6144:mcLRRKWEpSMnqkuAExWH/Tc8tmfs9ooBXrtjqaIFwTDil:mcLRRB+Se1JExWfLmfsCG7HIWOl

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\9b9f6ec42265d143c0ec1b54db26f14a18e9e7c615533a6d1e565059224de98b.exe
    "C:\Users\Admin\AppData\Local\Temp\9b9f6ec42265d143c0ec1b54db26f14a18e9e7c615533a6d1e565059224de98b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\uxc.0.exe
      "C:\Users\Admin\AppData\Local\Temp\uxc.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4024
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 1992
        3⤵
        • Program crash
        PID:3200
    • C:\Users\Admin\AppData\Local\Temp\uxc.1.exe
      "C:\Users\Admin\AppData\Local\Temp\uxc.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:4532
      • 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:2780
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 1152
      2⤵
      • Program crash
      PID:1312
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1200 -ip 1200
    1⤵
      PID:1528
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4024 -ip 4024
      1⤵
        PID:2432

      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\uxc.0.exe

        Filesize

        245KB

        MD5

        33bc221961c8365ec06fe86a4ab76709

        SHA1

        af930ef0dbd96b4fb0c6ecd72ea5fe2fd77268f8

        SHA256

        2874b873e12bcdfcf0a37708512e21637e38e5f5b9a2bf0c3b34f72d74c05708

        SHA512

        957e92d7418dca60a34cdc8dd542a587003b8181be6eb19272a5e4065aa61fa43655f6cbaebc31ce4a778fcc0e4430993a6f35db73cc7b0d7140042ba835082e

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

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1200-1-0x0000000002640000-0x0000000002740000-memory.dmp

        Filesize

        1024KB

      • memory/1200-2-0x00000000041F0000-0x000000000425C000-memory.dmp

        Filesize

        432KB

      • memory/1200-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1200-28-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1200-27-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/2780-132-0x000002076A3C0000-0x000002076A3E4000-memory.dmp

        Filesize

        144KB

      • memory/2780-150-0x000002076FE60000-0x000002076FE82000-memory.dmp

        Filesize

        136KB

      • memory/2780-157-0x000002076FBA0000-0x000002076FBBE000-memory.dmp

        Filesize

        120KB

      • memory/2780-127-0x000002074B640000-0x000002074EE74000-memory.dmp

        Filesize

        56.2MB

      • memory/2780-128-0x000002076A5F0000-0x000002076A6FA000-memory.dmp

        Filesize

        1.0MB

      • memory/2780-129-0x00000207692D0000-0x00000207692E0000-memory.dmp

        Filesize

        64KB

      • memory/2780-130-0x00000207692F0000-0x00000207692FC000-memory.dmp

        Filesize

        48KB

      • memory/2780-131-0x00000207692E0000-0x00000207692F4000-memory.dmp

        Filesize

        80KB

      • memory/2780-155-0x000002076FC40000-0x000002076FCB6000-memory.dmp

        Filesize

        472KB

      • memory/2780-133-0x0000020769310000-0x000002076931A000-memory.dmp

        Filesize

        40KB

      • memory/2780-134-0x000002076A430000-0x000002076A4E2000-memory.dmp

        Filesize

        712KB

      • memory/2780-135-0x000002076A890000-0x000002076A8E0000-memory.dmp

        Filesize

        320KB

      • memory/2780-136-0x000002076A840000-0x000002076A86A000-memory.dmp

        Filesize

        168KB

      • memory/2780-137-0x000002076A910000-0x000002076A932000-memory.dmp

        Filesize

        136KB

      • memory/2780-138-0x000002076A3E0000-0x000002076A3EA000-memory.dmp

        Filesize

        40KB

      • memory/2780-142-0x000002076A940000-0x000002076AC40000-memory.dmp

        Filesize

        3.0MB

      • memory/2780-144-0x000002076ECF0000-0x000002076ECF8000-memory.dmp

        Filesize

        32KB

      • memory/2780-145-0x000002076EC70000-0x000002076ECA8000-memory.dmp

        Filesize

        224KB

      • memory/2780-146-0x000002076EC40000-0x000002076EC4E000-memory.dmp

        Filesize

        56KB

      • memory/2780-147-0x000002076EC60000-0x000002076EC68000-memory.dmp

        Filesize

        32KB

      • memory/2780-148-0x000002076FDE0000-0x000002076FDEA000-memory.dmp

        Filesize

        40KB

      • memory/2780-149-0x000002076FE00000-0x000002076FE62000-memory.dmp

        Filesize

        392KB

      • memory/2780-154-0x000002076FB60000-0x000002076FB6C000-memory.dmp

        Filesize

        48KB

      • memory/2780-151-0x00000207703B0000-0x00000207708D8000-memory.dmp

        Filesize

        5.2MB

      • memory/4024-113-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4024-33-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4024-172-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4532-115-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4532-126-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB