Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-05-2024 02:40

General

  • Target

    b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe

  • Size

    387KB

  • MD5

    49ab2ca250abb273e1381e594917cc01

  • SHA1

    13eca084b2d46780bece6c54e8e92169cbc339b8

  • SHA256

    b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6

  • SHA512

    e866f166bbab59ddbdb38d44294ca5a730a48b6e9296eaddb6e7d40cf68ce3c591ae1d4990ea942944767ead78d3c9e5b5d23c7ebdc6cc5fdfb2396811600ce3

  • SSDEEP

    6144:JzP+6ZWEAS2YtQTTtNLiamb2gWwfGtUyeWPwj7Z9o4T9o1:JzP+6sjS3EjLKbdGtqfjC1

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#.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
  • Detects encrypted or obfuscated .NET executables 1 IoCs
  • 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 25 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\b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe
    "C:\Users\Admin\AppData\Local\Temp\b852f511fbaf0000cb6ff92519a399df2c594f20464fd26a9bbe887dac7f61c6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Users\Admin\AppData\Local\Temp\u3wk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3wk.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3564
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3564 -s 2004
        3⤵
        • Program crash
        PID:4328
    • C:\Users\Admin\AppData\Local\Temp\u3wk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3wk.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:2308
      • 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:2364
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 1180
      2⤵
      • Program crash
      PID:1952
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5060 -ip 5060
    1⤵
      PID:3936
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3564 -ip 3564
      1⤵
        PID:224

      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\u3wk.0.exe

        Filesize

        238KB

        MD5

        1f249241805d47175dfb55846df09485

        SHA1

        66407ab1cf48a4a56a28820c7bfc820a228a2ba3

        SHA256

        736af94a2fd07dca7397c2b2068bfd1e2a71a716c5ddda5e9cb7da808355487a

        SHA512

        99808d4e4ef7d2fa99efeb9240b8ec73e6f0206e0ddcf8f72caee4276a98034b9c9eac554e0228adc898b0e8ececdd52fd5d30a164fe66a63fadae61e53df628

      • C:\Users\Admin\AppData\Local\Temp\u3wk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2308-107-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2308-127-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2364-142-0x000001F4EA7C0000-0x000001F4EA7E4000-memory.dmp

        Filesize

        144KB

      • memory/2364-146-0x000001F4EAA80000-0x000001F4EAAD0000-memory.dmp

        Filesize

        320KB

      • memory/2364-168-0x000001F4EFD80000-0x000001F4EFD9E000-memory.dmp

        Filesize

        120KB

      • memory/2364-167-0x000001F4EFE20000-0x000001F4EFE96000-memory.dmp

        Filesize

        472KB

      • memory/2364-166-0x000001F4EFD40000-0x000001F4EFD4C000-memory.dmp

        Filesize

        48KB

      • memory/2364-163-0x000001F4F0590000-0x000001F4F0AB8000-memory.dmp

        Filesize

        5.2MB

      • memory/2364-161-0x000001F4EFFE0000-0x000001F4F0042000-memory.dmp

        Filesize

        392KB

      • memory/2364-128-0x000001F4CAF70000-0x000001F4CE7A4000-memory.dmp

        Filesize

        56.2MB

      • memory/2364-162-0x000001F4F0040000-0x000001F4F0062000-memory.dmp

        Filesize

        136KB

      • memory/2364-138-0x000001F4EA540000-0x000001F4EA64A000-memory.dmp

        Filesize

        1.0MB

      • memory/2364-140-0x000001F4EA650000-0x000001F4EA65C000-memory.dmp

        Filesize

        48KB

      • memory/2364-139-0x000001F4EA320000-0x000001F4EA330000-memory.dmp

        Filesize

        64KB

      • memory/2364-141-0x000001F4EA330000-0x000001F4EA344000-memory.dmp

        Filesize

        80KB

      • memory/2364-160-0x000001F4EFFC0000-0x000001F4EFFCA000-memory.dmp

        Filesize

        40KB

      • memory/2364-143-0x000001F4D04B0000-0x000001F4D04BA000-memory.dmp

        Filesize

        40KB

      • memory/2364-144-0x000001F4EA940000-0x000001F4EA96A000-memory.dmp

        Filesize

        168KB

      • memory/2364-145-0x000001F4EA970000-0x000001F4EAA22000-memory.dmp

        Filesize

        712KB

      • memory/2364-159-0x000001F4EEE40000-0x000001F4EEE48000-memory.dmp

        Filesize

        32KB

      • memory/2364-147-0x000001F4EAA50000-0x000001F4EAA72000-memory.dmp

        Filesize

        136KB

      • memory/2364-158-0x000001F4EEE20000-0x000001F4EEE2E000-memory.dmp

        Filesize

        56KB

      • memory/2364-150-0x000001F4D04C0000-0x000001F4D04CA000-memory.dmp

        Filesize

        40KB

      • memory/2364-154-0x000001F4EAAD0000-0x000001F4EADD0000-memory.dmp

        Filesize

        3.0MB

      • memory/2364-156-0x000001F4EF510000-0x000001F4EF518000-memory.dmp

        Filesize

        32KB

      • memory/2364-157-0x000001F4EEE50000-0x000001F4EEE88000-memory.dmp

        Filesize

        224KB

      • memory/3564-149-0x0000000000400000-0x0000000000793000-memory.dmp

        Filesize

        3.6MB

      • memory/3564-13-0x0000000000400000-0x0000000000793000-memory.dmp

        Filesize

        3.6MB

      • memory/3564-26-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3564-91-0x0000000000400000-0x0000000000793000-memory.dmp

        Filesize

        3.6MB

      • memory/5060-61-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/5060-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/5060-2-0x00000000041E0000-0x000000000424C000-memory.dmp

        Filesize

        432KB

      • memory/5060-1-0x0000000002800000-0x0000000002900000-memory.dmp

        Filesize

        1024KB

      • memory/5060-62-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB