Analysis

  • max time kernel
    138s
  • max time network
    143s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-05-2024 00:11

General

  • Target

    e5d4c7bf43b374753246eed97d91929399b8493a87d1fda1df074c76c4e86511.exe

  • Size

    384KB

  • MD5

    5ab2261b70b1a409596b86ff651b3635

  • SHA1

    ffb3d5e795d13385a443149c95b4f0464a3b4112

  • SHA256

    e5d4c7bf43b374753246eed97d91929399b8493a87d1fda1df074c76c4e86511

  • SHA512

    667afeef93c28f77440028d178afb7ffaa43b785fdf9a3f224d39572f96d9628ae49107dc0a0b2337a6cbd1a54042073eb0a2635cd8d14bd89341b9b3015b5da

  • SSDEEP

    6144:WPhyrd5h3eOxlkRkIAXAQXNaHOnu1yPlWguHSQDuWWxF:WPh0tJ9XAQdQqGSKuDF

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\e5d4c7bf43b374753246eed97d91929399b8493a87d1fda1df074c76c4e86511.exe
    "C:\Users\Admin\AppData\Local\Temp\e5d4c7bf43b374753246eed97d91929399b8493a87d1fda1df074c76c4e86511.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5104
    • C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:356
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 356 -s 2076
        3⤵
        • Program crash
        PID:844
    • C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4480
      • 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:3624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 1160
      2⤵
      • Program crash
      PID:3568
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5104 -ip 5104
    1⤵
      PID:4808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 356 -ip 356
      1⤵
        PID:3728

      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\u3xs.0.exe

        Filesize

        242KB

        MD5

        016e62b625dae4c6e7697663fcda8e70

        SHA1

        0854d0798147947e1f45e94f00d4e211f3655bc3

        SHA256

        c71268dceea5908ceaff670721c53af922158aca6dd6c9958762b3658bc3acf0

        SHA512

        66de6a47f8165c149538f2acec23606da9dba3e3c03f5598863d6bd623f760df9704ccc7e4afd0a8ef2d2d2613e46a5819a9d8dff980c9431ca49cdef110f37a

      • C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/356-82-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/356-172-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/356-95-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/356-91-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/3624-75-0x0000026777300000-0x0000026777322000-memory.dmp

        Filesize

        136KB

      • memory/3624-83-0x000002677B030000-0x000002677B038000-memory.dmp

        Filesize

        32KB

      • memory/3624-66-0x00000267770A0000-0x00000267771AA000-memory.dmp

        Filesize

        1.0MB

      • memory/3624-67-0x0000026776C90000-0x0000026776CA0000-memory.dmp

        Filesize

        64KB

      • memory/3624-68-0x0000026776CB0000-0x0000026776CBC000-memory.dmp

        Filesize

        48KB

      • memory/3624-69-0x0000026776CA0000-0x0000026776CB4000-memory.dmp

        Filesize

        80KB

      • memory/3624-70-0x0000026776D10000-0x0000026776D34000-memory.dmp

        Filesize

        144KB

      • memory/3624-71-0x0000026776D40000-0x0000026776D4A000-memory.dmp

        Filesize

        40KB

      • memory/3624-73-0x0000026777060000-0x000002677708A000-memory.dmp

        Filesize

        168KB

      • memory/3624-72-0x0000026776FB0000-0x0000026777062000-memory.dmp

        Filesize

        712KB

      • memory/3624-74-0x0000026777350000-0x00000267773A0000-memory.dmp

        Filesize

        320KB

      • memory/3624-161-0x000002677BE70000-0x000002677BE8E000-memory.dmp

        Filesize

        120KB

      • memory/3624-76-0x00000267765A0000-0x00000267765AA000-memory.dmp

        Filesize

        40KB

      • memory/3624-80-0x00000267773A0000-0x00000267776A0000-memory.dmp

        Filesize

        3.0MB

      • memory/3624-85-0x000002677B700000-0x000002677B70E000-memory.dmp

        Filesize

        56KB

      • memory/3624-65-0x0000026770F90000-0x00000267747C4000-memory.dmp

        Filesize

        56.2MB

      • memory/3624-87-0x000002677C090000-0x000002677C09A000-memory.dmp

        Filesize

        40KB

      • memory/3624-86-0x000002677B720000-0x000002677B728000-memory.dmp

        Filesize

        32KB

      • memory/3624-88-0x000002677C0B0000-0x000002677C112000-memory.dmp

        Filesize

        392KB

      • memory/3624-89-0x000002677BE10000-0x000002677BE32000-memory.dmp

        Filesize

        136KB

      • memory/3624-84-0x000002677B740000-0x000002677B778000-memory.dmp

        Filesize

        224KB

      • memory/3624-90-0x000002677C640000-0x000002677CB68000-memory.dmp

        Filesize

        5.2MB

      • memory/3624-107-0x000002677BF10000-0x000002677BF86000-memory.dmp

        Filesize

        472KB

      • memory/3624-94-0x000002677BE30000-0x000002677BE3C000-memory.dmp

        Filesize

        48KB

      • memory/4480-53-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4480-64-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/5104-35-0x0000000000400000-0x0000000002B1E000-memory.dmp

        Filesize

        39.1MB

      • memory/5104-36-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5104-16-0x0000000000400000-0x0000000002B1E000-memory.dmp

        Filesize

        39.1MB

      • memory/5104-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5104-1-0x0000000002C40000-0x0000000002D40000-memory.dmp

        Filesize

        1024KB

      • memory/5104-2-0x0000000002E90000-0x0000000002EFC000-memory.dmp

        Filesize

        432KB