Analysis

  • max time kernel
    123s
  • max time network
    125s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    06/05/2024, 16:02

General

  • Target

    9a77686c1bcfd7a3b163cda88bde89e854783436a7f386bd3db5f5ca329ad573.exe

  • Size

    416KB

  • MD5

    1ab4f77cecedbf60bf479a8258243913

  • SHA1

    976315486f8d9973ccae2b606161b021e5b4c371

  • SHA256

    9a77686c1bcfd7a3b163cda88bde89e854783436a7f386bd3db5f5ca329ad573

  • SHA512

    3426be2e1c9fb50ab1f4142ddcd071f6cc554585f3f8ebdbb358f59c00f77fe95ec1d86666b107a3ab1d6ea9b72630f7d2af9cb9b85dffb9bb447d0eee2b8524

  • SSDEEP

    6144:Z5YuR8GzWWGtJf1/NoL+TcbtnqJPMfsvJQjN+tu8BjtlLCSzE4Rx58VVFrk04:JR8GzWWSZ1g+w5qJmjNMu6h9vzE44k04

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\9a77686c1bcfd7a3b163cda88bde89e854783436a7f386bd3db5f5ca329ad573.exe
    "C:\Users\Admin\AppData\Local\Temp\9a77686c1bcfd7a3b163cda88bde89e854783436a7f386bd3db5f5ca329ad573.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3836
    • C:\Users\Admin\AppData\Local\Temp\u2yk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2yk.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 2504
        3⤵
        • Program crash
        PID:1240
    • C:\Users\Admin\AppData\Local\Temp\u2yk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2yk.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4880
      • 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:4260
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3836 -s 1156
      2⤵
      • Program crash
      PID:3104
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3836 -ip 3836
    1⤵
      PID:1204
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1704 -ip 1704
      1⤵
        PID:892

      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

        1be7c5b0a10c97bef11c55ac06e059d4

        SHA1

        f9e56695cec89f5b3bd22c4d775da3f889a76ffa

        SHA256

        a1162407d974ddbdcf80ef5f3f1d77298629565a37ea891e9c1708fbd9874adf

        SHA512

        fb41fd5837448e62268ce363173bd03b5b8baf5ec3c5ba861a6059ed9290e490c682d26ae19e5d054440e360d8b988a9c79c5c0bfbf15b74c95111d0615985a1

      • C:\Users\Admin\AppData\Local\Temp\u2yk.0.exe

        Filesize

        274KB

        MD5

        5ade13af5562d781ed7c2125b798937b

        SHA1

        4c8e9e941bd9a7beb5b67c224a85bb82b501fed8

        SHA256

        1d05661d8c7a296602f66a8aac7cb16115354a313fc2019088e5ba92c29f3c40

        SHA512

        f07e3966cf2e5f0a098e9b76ee6519f1ea473053736d02c872ec0caece31a51b324a2cf239b7a89859e9425e3f046451074468ba21ffb4efec1c68667eaeab20

      • C:\Users\Admin\AppData\Local\Temp\u2yk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1704-36-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1704-167-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-162-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-15-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-176-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-93-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-14-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-182-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1704-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/3836-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3836-30-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/3836-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3836-1-0x0000000001AE0000-0x0000000001BE0000-memory.dmp

        Filesize

        1024KB

      • memory/3836-2-0x0000000003750000-0x00000000037BC000-memory.dmp

        Filesize

        432KB

      • memory/4260-114-0x00000236667F0000-0x000002366681A000-memory.dmp

        Filesize

        168KB

      • memory/4260-129-0x000002366BAF0000-0x000002366BB12000-memory.dmp

        Filesize

        136KB

      • memory/4260-112-0x0000023666650000-0x0000023666674000-memory.dmp

        Filesize

        144KB

      • memory/4260-115-0x0000023666BD0000-0x0000023666C82000-memory.dmp

        Filesize

        712KB

      • memory/4260-118-0x0000023666DE0000-0x0000023666E56000-memory.dmp

        Filesize

        472KB

      • memory/4260-117-0x0000023666D00000-0x0000023666D62000-memory.dmp

        Filesize

        392KB

      • memory/4260-116-0x0000023666C80000-0x0000023666CFA000-memory.dmp

        Filesize

        488KB

      • memory/4260-119-0x000002364DEC0000-0x000002364DECA000-memory.dmp

        Filesize

        40KB

      • memory/4260-123-0x0000023666E60000-0x0000023667160000-memory.dmp

        Filesize

        3.0MB

      • memory/4260-125-0x000002366B200000-0x000002366B208000-memory.dmp

        Filesize

        32KB

      • memory/4260-126-0x000002366B180000-0x000002366B1B8000-memory.dmp

        Filesize

        224KB

      • memory/4260-127-0x000002366B150000-0x000002366B15E000-memory.dmp

        Filesize

        56KB

      • memory/4260-128-0x000002366BAE0000-0x000002366BAEA000-memory.dmp

        Filesize

        40KB

      • memory/4260-113-0x00000236667D0000-0x00000236667DA000-memory.dmp

        Filesize

        40KB

      • memory/4260-130-0x000002366C040000-0x000002366C568000-memory.dmp

        Filesize

        5.2MB

      • memory/4260-133-0x000002366B8B0000-0x000002366B900000-memory.dmp

        Filesize

        320KB

      • memory/4260-134-0x000002366B860000-0x000002366B86C000-memory.dmp

        Filesize

        48KB

      • memory/4260-135-0x000002366B900000-0x000002366B922000-memory.dmp

        Filesize

        136KB

      • memory/4260-136-0x000002366B930000-0x000002366B94E000-memory.dmp

        Filesize

        120KB

      • memory/4260-111-0x000002364DEE0000-0x000002364DEF4000-memory.dmp

        Filesize

        80KB

      • memory/4260-110-0x000002364DEF0000-0x000002364DEFC000-memory.dmp

        Filesize

        48KB

      • memory/4260-109-0x000002364C5B0000-0x000002364C5C0000-memory.dmp

        Filesize

        64KB

      • memory/4260-108-0x0000023666970000-0x0000023666A80000-memory.dmp

        Filesize

        1.1MB

      • memory/4260-107-0x0000023648850000-0x000002364C148000-memory.dmp

        Filesize

        57.0MB

      • memory/4880-106-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4880-103-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB