Analysis

  • max time kernel
    124s
  • max time network
    126s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    06-05-2024 12:50

General

  • Target

    bc27633cac9b7c7c5c5a81be2729a36f7bfd2ced530e46f0a0cfad714f284c44.exe

  • Size

    416KB

  • MD5

    938036d70426ce954b4d5f026ebb81d7

  • SHA1

    994d47f8879c6c72394fa9a701be0a9b41ee51a5

  • SHA256

    bc27633cac9b7c7c5c5a81be2729a36f7bfd2ced530e46f0a0cfad714f284c44

  • SHA512

    f475139bb22f835f7423fd7b06aede4fc7fd3c6c4227b9a4de0cc2e38d076db801b2f848ee490da435d1779e82b9a9b1ff05d783e0dead4f2e902067e6f0fd4c

  • SSDEEP

    6144:H/BZItaWG0e12qQ61HC7bIxM6Wp8ik/QAYiVA2XOxx0HNhBp7/nyaFotaZs:fBZI4WObXGIa6AA/eV+HNhLvCtcs

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 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\bc27633cac9b7c7c5c5a81be2729a36f7bfd2ced530e46f0a0cfad714f284c44.exe
    "C:\Users\Admin\AppData\Local\Temp\bc27633cac9b7c7c5c5a81be2729a36f7bfd2ced530e46f0a0cfad714f284c44.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:772
    • C:\Users\Admin\AppData\Local\Temp\ulg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\ulg.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4652
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 2056
        3⤵
        • Program crash
        PID:3980
    • C:\Users\Admin\AppData\Local\Temp\ulg.1.exe
      "C:\Users\Admin\AppData\Local\Temp\ulg.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5016
      • 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:4088
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 1564
      2⤵
      • Program crash
      PID:1016
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 772 -ip 772
    1⤵
      PID:2036
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4652 -ip 4652
      1⤵
        PID:4512

      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

        b0af045d069f39326909bc3222c84416

        SHA1

        f1a52d5d1bbdbcb8acac71a841d8c864d5d88306

        SHA256

        f8c37aed3d8544436b10934571935123d38b5f9bc5b5424eb198a265720cb120

        SHA512

        7f18e377a0ef8f1e2e32d85d5c7015d310ab568167d596f1d5bc95693ab63a4e5a45ddcc812fa0e07b14ceb666c935c011c8d6d481d460619b6af1a6bc2690ce

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

        Filesize

        274KB

        MD5

        b63651242fe0e7f1fec1bde74aa9a314

        SHA1

        207fa50fec5ad58497fe74ab1025fa5581aa7bba

        SHA256

        bab90c5ac83470d55766cdbd3dffb8f4f4531d7b3fdf49dd5e318def2697c44c

        SHA512

        05df1e4d9d9a42efa9638eb92d37dc37c30c6cf9abf89ca97c46cbab0ea2de87c9d3723561dbf33e6832dd69774ccc16405ac121c9450e5f82db5d73863e335f

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

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/772-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/772-2-0x0000000003780000-0x00000000037EC000-memory.dmp

        Filesize

        432KB

      • memory/772-1-0x0000000001C60000-0x0000000001D60000-memory.dmp

        Filesize

        1024KB

      • memory/772-69-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/772-65-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/4088-137-0x00000225BBD70000-0x00000225BBD7C000-memory.dmp

        Filesize

        48KB

      • memory/4088-143-0x00000225BC170000-0x00000225BC1EA000-memory.dmp

        Filesize

        488KB

      • memory/4088-163-0x00000225C0E60000-0x00000225C0E7E000-memory.dmp

        Filesize

        120KB

      • memory/4088-162-0x00000225C0E30000-0x00000225C0E52000-memory.dmp

        Filesize

        136KB

      • memory/4088-161-0x00000225C0D90000-0x00000225C0D9C000-memory.dmp

        Filesize

        48KB

      • memory/4088-160-0x00000225C0DE0000-0x00000225C0E30000-memory.dmp

        Filesize

        320KB

      • memory/4088-134-0x000002259DD80000-0x00000225A1678000-memory.dmp

        Filesize

        57.0MB

      • memory/4088-135-0x00000225BBDE0000-0x00000225BBEF0000-memory.dmp

        Filesize

        1.1MB

      • memory/4088-136-0x00000225BBD40000-0x00000225BBD50000-memory.dmp

        Filesize

        64KB

      • memory/4088-157-0x00000225C1570000-0x00000225C1A98000-memory.dmp

        Filesize

        5.2MB

      • memory/4088-138-0x00000225BBD60000-0x00000225BBD74000-memory.dmp

        Filesize

        80KB

      • memory/4088-139-0x00000225BBEF0000-0x00000225BBF14000-memory.dmp

        Filesize

        144KB

      • memory/4088-140-0x00000225BC070000-0x00000225BC07A000-memory.dmp

        Filesize

        40KB

      • memory/4088-141-0x00000225BC080000-0x00000225BC132000-memory.dmp

        Filesize

        712KB

      • memory/4088-142-0x00000225BC140000-0x00000225BC16A000-memory.dmp

        Filesize

        168KB

      • memory/4088-155-0x00000225C1010000-0x00000225C101A000-memory.dmp

        Filesize

        40KB

      • memory/4088-144-0x00000225BC1F0000-0x00000225BC252000-memory.dmp

        Filesize

        392KB

      • memory/4088-145-0x00000225BC2D0000-0x00000225BC346000-memory.dmp

        Filesize

        472KB

      • memory/4088-146-0x00000225BBD20000-0x00000225BBD2A000-memory.dmp

        Filesize

        40KB

      • memory/4088-150-0x00000225BC350000-0x00000225BC650000-memory.dmp

        Filesize

        3.0MB

      • memory/4088-152-0x00000225C0D70000-0x00000225C0D78000-memory.dmp

        Filesize

        32KB

      • memory/4088-154-0x00000225C0680000-0x00000225C068E000-memory.dmp

        Filesize

        56KB

      • memory/4088-153-0x00000225C06B0000-0x00000225C06E8000-memory.dmp

        Filesize

        224KB

      • memory/4088-156-0x00000225C1020000-0x00000225C1042000-memory.dmp

        Filesize

        136KB

      • memory/4652-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4652-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4652-14-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4652-105-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/5016-133-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/5016-121-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB