Analysis

  • max time kernel
    146s
  • max time network
    150s
  • 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 01:34

General

  • Target

    73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe

  • Size

    372KB

  • MD5

    9f712ea5a04bfae2238764f668305642

  • SHA1

    864debdeec4d00430661070fc1dab479cfc8a6ef

  • SHA256

    73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771

  • SHA512

    25ff360b96fd99abf9e0a6afbd489e3efdf76685b246384cd61ab692a828a1ee7cc508afd95273c10b45c5b7d358bee142a860b134f75375358045bf3b1363d3

  • SSDEEP

    6144:pl+08UGGfdzF7qxvwcB793ituNKkzXwGZTapV:p808UGgdtqrhauN3XwwapV

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Buer

    Buer is a new modular loader first seen in August 2019.

  • 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 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\73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe
    "C:\Users\Admin\AppData\Local\Temp\73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Users\Admin\AppData\Local\Temp\ur0.0.exe
      "C:\Users\Admin\AppData\Local\Temp\ur0.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4668
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 2128
        3⤵
        • Program crash
        PID:4300
    • C:\Users\Admin\AppData\Local\Temp\ur0.1.exe
      "C:\Users\Admin\AppData\Local\Temp\ur0.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3604
      • 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:3496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 972 -s 1564
      2⤵
      • Program crash
      PID:4028
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 972 -ip 972
    1⤵
      PID:5012
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4668 -ip 4668
      1⤵
        PID:4552

      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\ur0.0.exe

        Filesize

        230KB

        MD5

        2c1f5406f854370921a90cc0f3f11145

        SHA1

        6969f52309b66f6a09f08c0e67db4956df150346

        SHA256

        79678293aad51fc96c947e496351048672ece528457daab0cfc93b35c16d1ab9

        SHA512

        6104eaa7a60a29b5962b3cff8cde7b7c237ced82f11a7c581df30725d1d5aec187b30ebbe7d6d61f45964cf4f70ea605c9b20c504e5dddc2451f440ecb50e2ac

      • C:\Users\Admin\AppData\Local\Temp\ur0.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/972-72-0x0000000000400000-0x0000000001A27000-memory.dmp

        Filesize

        22.2MB

      • memory/972-1-0x0000000001CF0000-0x0000000001DF0000-memory.dmp

        Filesize

        1024KB

      • memory/972-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/972-2-0x0000000003790000-0x00000000037FC000-memory.dmp

        Filesize

        432KB

      • memory/972-74-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/972-73-0x0000000003790000-0x00000000037FC000-memory.dmp

        Filesize

        432KB

      • memory/3496-144-0x000001BD7E520000-0x000001BD7E544000-memory.dmp

        Filesize

        144KB

      • memory/3496-149-0x000001BD7E7D0000-0x000001BD7E7F2000-memory.dmp

        Filesize

        136KB

      • memory/3496-168-0x000001BD7FA80000-0x000001BD7FA9E000-memory.dmp

        Filesize

        120KB

      • memory/3496-167-0x000001BD7FF40000-0x000001BD7FFB6000-memory.dmp

        Filesize

        472KB

      • memory/3496-156-0x000001BD7F360000-0x000001BD7F368000-memory.dmp

        Filesize

        32KB

      • memory/3496-166-0x000001BD1B4A0000-0x000001BD1B4AC000-memory.dmp

        Filesize

        48KB

      • memory/3496-139-0x000001BD78460000-0x000001BD7BC94000-memory.dmp

        Filesize

        56.2MB

      • memory/3496-140-0x000001BD7E410000-0x000001BD7E51A000-memory.dmp

        Filesize

        1.0MB

      • memory/3496-141-0x000001BD7E250000-0x000001BD7E260000-memory.dmp

        Filesize

        64KB

      • memory/3496-157-0x000001BD7FA40000-0x000001BD7FA78000-memory.dmp

        Filesize

        224KB

      • memory/3496-143-0x000001BD7E380000-0x000001BD7E394000-memory.dmp

        Filesize

        80KB

      • memory/3496-142-0x000001BD7E390000-0x000001BD7E39C000-memory.dmp

        Filesize

        48KB

      • memory/3496-148-0x000001BD7E800000-0x000001BD7E850000-memory.dmp

        Filesize

        320KB

      • memory/3496-147-0x000001BD7E6F0000-0x000001BD7E7A2000-memory.dmp

        Filesize

        712KB

      • memory/3496-146-0x000001BD7E6B0000-0x000001BD7E6DA000-memory.dmp

        Filesize

        168KB

      • memory/3496-163-0x000001BD1BCF0000-0x000001BD1C218000-memory.dmp

        Filesize

        5.2MB

      • memory/3496-145-0x000001BD7E690000-0x000001BD7E69A000-memory.dmp

        Filesize

        40KB

      • memory/3496-150-0x000001BD7D8B0000-0x000001BD7D8BA000-memory.dmp

        Filesize

        40KB

      • memory/3496-154-0x000001BD7E850000-0x000001BD7EB50000-memory.dmp

        Filesize

        3.0MB

      • memory/3496-159-0x000001BD7F380000-0x000001BD7F388000-memory.dmp

        Filesize

        32KB

      • memory/3496-158-0x000001BD7F370000-0x000001BD7F37E000-memory.dmp

        Filesize

        56KB

      • memory/3496-162-0x000001BD1B7A0000-0x000001BD1B7C2000-memory.dmp

        Filesize

        136KB

      • memory/3496-161-0x000001BD1B740000-0x000001BD1B7A2000-memory.dmp

        Filesize

        392KB

      • memory/3496-160-0x000001BD1B720000-0x000001BD1B72A000-memory.dmp

        Filesize

        40KB

      • memory/3604-138-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3604-126-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4668-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4668-14-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4668-125-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4668-15-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4668-13-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4668-177-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB