Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-05-2024 19:49

General

  • Target

    bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70.exe

  • Size

    404KB

  • MD5

    191946388652f27978becd88d38b0b27

  • SHA1

    c826820147ddac4ea6540cb3ad4c0ce617ea1cd2

  • SHA256

    bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70

  • SHA512

    d91637f372588d465b00c3ef415aec52c11c9ea8b46047f48a153398cbcd8b42fd8568f37ec7474aa27c1def30ff8c1218d0e24cc5a9b23031af4d72f4a1c895

  • SSDEEP

    6144:I+hXdi5S6e9EioGDqP3/CFPi/uh9SqPLb6kACHXPH1D2B9DHf6:vi5SQGOPvCFPi/uhYwLbmC3PH1D2BR6

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\bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70.exe
    "C:\Users\Admin\AppData\Local\Temp\bdcfe531cd061e4cfaa627fd99f9c9fff623c90cb60153210f6cba655474fb70.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Users\Admin\AppData\Local\Temp\u264.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u264.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 2128
        3⤵
        • Program crash
        PID:3484
    • C:\Users\Admin\AppData\Local\Temp\u264.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u264.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1072
      • 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:2408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 1188
      2⤵
      • Program crash
      PID:4996
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2812 -ip 2812
    1⤵
      PID:3048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1576 -ip 1576
      1⤵
        PID:3192

      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

        73f8428c3063e31f7ee993269578509e

        SHA1

        cdf3ce09f03e757a37a99bd796b78f43f995af7c

        SHA256

        168661e44b2876b1903842e0549d747d5aab6a05ce535420f77c64570f3c5900

        SHA512

        d6dbb8ec6379aa3431666174b2238beb3751f4bffd0ce3b0abbb82f78a1b8ea5854fdc21e4b209dbb8cefc939edab9391a2685163c6ce27a3e9dbc850b8a2ba0

      • C:\Users\Admin\AppData\Local\Temp\u264.0.exe

        Filesize

        262KB

        MD5

        49c818da112894812df1468c79b96bbc

        SHA1

        b943d8877e19b59cd6f61f702c659e635fd96a4f

        SHA256

        7dee0c70282dffb5642fe42e1d7480ace50d58fad04f41f240b99dd7be432a3a

        SHA512

        5171905e30b07b72a32f12b0d9a39003d1a8aa83feeb25cb867a2290eed5e8bf3c6b2d7e5eb85be31a1bc818726dafd899d9956440804b2ef47d46e41c259732

      • C:\Users\Admin\AppData\Local\Temp\u264.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1072-92-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1072-105-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1576-165-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/1576-33-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/1576-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1576-91-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/1576-179-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/2408-113-0x000001FD71D20000-0x000001FD71D4A000-memory.dmp

        Filesize

        168KB

      • memory/2408-124-0x000001FD765D0000-0x000001FD76608000-memory.dmp

        Filesize

        224KB

      • memory/2408-109-0x000001FD71390000-0x000001FD7139C000-memory.dmp

        Filesize

        48KB

      • memory/2408-108-0x000001FD71370000-0x000001FD71380000-memory.dmp

        Filesize

        64KB

      • memory/2408-111-0x000001FD713F0000-0x000001FD71414000-memory.dmp

        Filesize

        144KB

      • memory/2408-110-0x000001FD71380000-0x000001FD71394000-memory.dmp

        Filesize

        80KB

      • memory/2408-112-0x000001FD71420000-0x000001FD7142A000-memory.dmp

        Filesize

        40KB

      • memory/2408-106-0x000001FD6BE40000-0x000001FD6F674000-memory.dmp

        Filesize

        56.2MB

      • memory/2408-114-0x000001FD72160000-0x000001FD72212000-memory.dmp

        Filesize

        712KB

      • memory/2408-115-0x000001FD72210000-0x000001FD72260000-memory.dmp

        Filesize

        320KB

      • memory/2408-116-0x000001FD71F90000-0x000001FD71FB2000-memory.dmp

        Filesize

        136KB

      • memory/2408-117-0x000001FD71340000-0x000001FD7134A000-memory.dmp

        Filesize

        40KB

      • memory/2408-121-0x000001FD72260000-0x000001FD72560000-memory.dmp

        Filesize

        3.0MB

      • memory/2408-123-0x000001FD76650000-0x000001FD76658000-memory.dmp

        Filesize

        32KB

      • memory/2408-125-0x000001FD765A0000-0x000001FD765AE000-memory.dmp

        Filesize

        56KB

      • memory/2408-107-0x000001FD71E80000-0x000001FD71F8A000-memory.dmp

        Filesize

        1.0MB

      • memory/2408-126-0x000001FD765C0000-0x000001FD765C8000-memory.dmp

        Filesize

        32KB

      • memory/2408-128-0x000001FD76F60000-0x000001FD76FC2000-memory.dmp

        Filesize

        392KB

      • memory/2408-127-0x000001FD76CB0000-0x000001FD76CBA000-memory.dmp

        Filesize

        40KB

      • memory/2408-129-0x000001FD76CD0000-0x000001FD76CF2000-memory.dmp

        Filesize

        136KB

      • memory/2408-130-0x000001FD774F0000-0x000001FD77A18000-memory.dmp

        Filesize

        5.2MB

      • memory/2408-133-0x000001FD76CF0000-0x000001FD76CFC000-memory.dmp

        Filesize

        48KB

      • memory/2408-134-0x000001FD76DD0000-0x000001FD76E46000-memory.dmp

        Filesize

        472KB

      • memory/2408-135-0x000001FD76D30000-0x000001FD76D4E000-memory.dmp

        Filesize

        120KB

      • memory/2812-1-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

        Filesize

        1024KB

      • memory/2812-27-0x0000000000400000-0x0000000002B22000-memory.dmp

        Filesize

        39.1MB

      • memory/2812-28-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2812-2-0x0000000004870000-0x00000000048DC000-memory.dmp

        Filesize

        432KB

      • memory/2812-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB