Analysis

  • max time kernel
    146s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 12:45

General

  • Target

    7c6a88208ad32f90663de6b93e6bb5c60dd3985aac59a5151aafa56d6c69c104.exe

  • Size

    416KB

  • MD5

    90b16f9d7b0269c5cc79c29af93f9ca6

  • SHA1

    e228dac9c7385395b3b4ab273ac3a86e3cd4b3a7

  • SHA256

    7c6a88208ad32f90663de6b93e6bb5c60dd3985aac59a5151aafa56d6c69c104

  • SHA512

    2d69d246cc670778a3e8ac9b0fb617e4cd328c8693e470b326cc34338d8e34d14c02e12d17ce8693c47cb76fc295d88130df4762e47b487ed00c99ca5859898d

  • SSDEEP

    6144:H/BZItaWG0e12qQ61HC7bIxM6Wp8ik/QAYiVA2XOxx0HNhBp7/nyaFotaZv:fBZI4WObXGIa6AA/eV+HNhLvCtcv

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 27 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\7c6a88208ad32f90663de6b93e6bb5c60dd3985aac59a5151aafa56d6c69c104.exe
    "C:\Users\Admin\AppData\Local\Temp\7c6a88208ad32f90663de6b93e6bb5c60dd3985aac59a5151aafa56d6c69c104.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Users\Admin\AppData\Local\Temp\u3bs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3bs.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3176
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 2248
        3⤵
        • Program crash
        PID:3276
    • C:\Users\Admin\AppData\Local\Temp\u3bs.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3bs.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:4824
      • 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:3096
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 860
      2⤵
      • Program crash
      PID:4100
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4312 -ip 4312
    1⤵
      PID:3520
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3176 -ip 3176
      1⤵
        PID:4372

      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

        2b2c21dcbc5901fa83e529e4d82ff97b

        SHA1

        a40eea3afe70e655634251a4dfebb1a47cc62606

        SHA256

        5e1ff43be753c802df8a96d52fd4bf2ab371698ac2dff8eb6f86ea78bbcc2eab

        SHA512

        81e055767ba077988bdc0b33059089bd46b04f227085b5fc3f7de2c5842b6db8852fb74757d6b201a40afc1d2ff7265ba4522fc1cc3390e98bf7b69abaef5cce

      • C:\Users\Admin\AppData\Local\Temp\u3bs.0.exe

        Filesize

        274KB

        MD5

        b63651242fe0e7f1fec1bde74aa9a314

        SHA1

        207fa50fec5ad58497fe74ab1025fa5581aa7bba

        SHA256

        bab90c5ac83470d55766cdbd3dffb8f4f4531d7b3fdf49dd5e318def2697c44c

        SHA512

        05df1e4d9d9a42efa9638eb92d37dc37c30c6cf9abf89ca97c46cbab0ea2de87c9d3723561dbf33e6832dd69774ccc16405ac121c9450e5f82db5d73863e335f

      • C:\Users\Admin\AppData\Local\Temp\u3bs.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/3096-161-0x000001B9A6C90000-0x000001B9A6F90000-memory.dmp

        Filesize

        3.0MB

      • memory/3096-166-0x000001B9AC140000-0x000001B9AC14A000-memory.dmp

        Filesize

        40KB

      • memory/3096-177-0x000001B9AC110000-0x000001B9AC137000-memory.dmp

        Filesize

        156KB

      • memory/3096-176-0x000001B9A61F0000-0x000001B9A628A000-memory.dmp

        Filesize

        616KB

      • memory/3096-174-0x000001B9ABF80000-0x000001B9ABF9E000-memory.dmp

        Filesize

        120KB

      • memory/3096-173-0x000001B9ABF50000-0x000001B9ABF72000-memory.dmp

        Filesize

        136KB

      • memory/3096-171-0x000001B9ABF00000-0x000001B9ABF50000-memory.dmp

        Filesize

        320KB

      • memory/3096-172-0x000001B9ABEB0000-0x000001B9ABEBC000-memory.dmp

        Filesize

        48KB

      • memory/3096-168-0x000001B9AC680000-0x000001B9ACBA8000-memory.dmp

        Filesize

        5.2MB

      • memory/3096-167-0x000001B9ABE90000-0x000001B9ABEB2000-memory.dmp

        Filesize

        136KB

      • memory/3096-165-0x000001B9AAF90000-0x000001B9AAF9E000-memory.dmp

        Filesize

        56KB

      • memory/3096-145-0x000001B9885A0000-0x000001B98BE98000-memory.dmp

        Filesize

        57.0MB

      • memory/3096-146-0x000001B9A67B0000-0x000001B9A68C0000-memory.dmp

        Filesize

        1.1MB

      • memory/3096-147-0x000001B9A6300000-0x000001B9A6310000-memory.dmp

        Filesize

        64KB

      • memory/3096-148-0x000001B9A6490000-0x000001B9A649C000-memory.dmp

        Filesize

        48KB

      • memory/3096-149-0x000001B9A6480000-0x000001B9A6494000-memory.dmp

        Filesize

        80KB

      • memory/3096-150-0x000001B9A64B0000-0x000001B9A64D4000-memory.dmp

        Filesize

        144KB

      • memory/3096-151-0x000001B9A6640000-0x000001B9A664A000-memory.dmp

        Filesize

        40KB

      • memory/3096-153-0x000001B9A6660000-0x000001B9A668A000-memory.dmp

        Filesize

        168KB

      • memory/3096-152-0x000001B9A6A00000-0x000001B9A6AB2000-memory.dmp

        Filesize

        712KB

      • memory/3096-154-0x000001B9A6AB0000-0x000001B9A6B2A000-memory.dmp

        Filesize

        488KB

      • memory/3096-155-0x000001B9A6B30000-0x000001B9A6B92000-memory.dmp

        Filesize

        392KB

      • memory/3096-156-0x000001B9A6C10000-0x000001B9A6C86000-memory.dmp

        Filesize

        472KB

      • memory/3096-157-0x000001B9A6650000-0x000001B9A665A000-memory.dmp

        Filesize

        40KB

      • memory/3096-164-0x000001B9AAFC0000-0x000001B9AAFF8000-memory.dmp

        Filesize

        224KB

      • memory/3096-163-0x000001B9AACC0000-0x000001B9AACC8000-memory.dmp

        Filesize

        32KB

      • memory/3176-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3176-116-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/3176-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/3176-14-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4312-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4312-2-0x00000000036C0000-0x000000000372C000-memory.dmp

        Filesize

        432KB

      • memory/4312-1-0x0000000001C20000-0x0000000001D20000-memory.dmp

        Filesize

        1024KB

      • memory/4312-100-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/4312-102-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4824-144-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4824-132-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB