Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-05-2024 23:22

General

  • Target

    f8645e4d70d72dcd44a1606437c8481d415f9791b89dda79e5d7dfd0056a3357.exe

  • Size

    404KB

  • MD5

    8eec6abf18ef5e6ce025c75d03744600

  • SHA1

    c2c5ea03a9a2c024c4713df18c24dc517254d5f6

  • SHA256

    f8645e4d70d72dcd44a1606437c8481d415f9791b89dda79e5d7dfd0056a3357

  • SHA512

    3bc5ac244f1e63a2e45b330feb988e58f3827252f35164c82938e40d1c43f1323852758a0294c04a14db173177fe5a9fb8968851b8b8f9503422393e68e168a2

  • SSDEEP

    6144:zFnmGM8FncD84WsYk8WPdFZ+V3zu4NfCWXmCL/AvBFIUHf/:z5mLrD8xgzJu3zu4Nf5XmiUOw/

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 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\f8645e4d70d72dcd44a1606437c8481d415f9791b89dda79e5d7dfd0056a3357.exe
    "C:\Users\Admin\AppData\Local\Temp\f8645e4d70d72dcd44a1606437c8481d415f9791b89dda79e5d7dfd0056a3357.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Users\Admin\AppData\Local\Temp\u2bg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2bg.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4808
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 2464
        3⤵
        • Program crash
        PID:3092
    • C:\Users\Admin\AppData\Local\Temp\u2bg.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2bg.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2888
      • 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:2516
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 1136
      2⤵
      • Program crash
      PID:4020
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4808 -ip 4808
    1⤵
      PID:1020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3004 -ip 3004
      1⤵
        PID:4088

      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\u2bg.0.exe

        Filesize

        262KB

        MD5

        f0dac37ebcbdf6049fdaddd88f555fe2

        SHA1

        6f0195060249777d77c38622b1c3b0fd7cbc1dfd

        SHA256

        03402214ff5c205ad0bcb67ee7785ff2a438f98cb1994ef5454f49115b3e1a3d

        SHA512

        01862013d331209241812d0b4109db84fede0c8f245af2a718acd1e8925e01b2206ca8987ffb40b6bb2581b27cbcde71e77898c0eb9f1ba6a97e797e915a2239

      • C:\Users\Admin\AppData\Local\Temp\u2bg.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2516-144-0x000002897BD70000-0x000002897BD80000-memory.dmp

        Filesize

        64KB

      • memory/2516-159-0x000002897E370000-0x000002897E378000-memory.dmp

        Filesize

        32KB

      • memory/2516-173-0x000002897E170000-0x000002897E323000-memory.dmp

        Filesize

        1.7MB

      • memory/2516-171-0x0000028980040000-0x000002898005E000-memory.dmp

        Filesize

        120KB

      • memory/2516-170-0x00000289800C0000-0x0000028980136000-memory.dmp

        Filesize

        472KB

      • memory/2516-169-0x000002891AA70000-0x000002891AA7C000-memory.dmp

        Filesize

        48KB

      • memory/2516-166-0x000002891B8D0000-0x000002891BDF8000-memory.dmp

        Filesize

        5.2MB

      • memory/2516-165-0x000002891AA50000-0x000002891AA72000-memory.dmp

        Filesize

        136KB

      • memory/2516-163-0x000002891AA40000-0x000002891AA4A000-memory.dmp

        Filesize

        40KB

      • memory/2516-164-0x000002891B340000-0x000002891B3A2000-memory.dmp

        Filesize

        392KB

      • memory/2516-162-0x000002897E3E0000-0x000002897E3E8000-memory.dmp

        Filesize

        32KB

      • memory/2516-161-0x000002897E3D0000-0x000002897E3DE000-memory.dmp

        Filesize

        56KB

      • memory/2516-160-0x0000028980000000-0x0000028980038000-memory.dmp

        Filesize

        224KB

      • memory/2516-157-0x000002897E680000-0x000002897E980000-memory.dmp

        Filesize

        3.0MB

      • memory/2516-153-0x000002897D670000-0x000002897D67A000-memory.dmp

        Filesize

        40KB

      • memory/2516-142-0x0000028978050000-0x000002897B884000-memory.dmp

        Filesize

        56.2MB

      • memory/2516-143-0x000002897E420000-0x000002897E52A000-memory.dmp

        Filesize

        1.0MB

      • memory/2516-152-0x000002897E330000-0x000002897E352000-memory.dmp

        Filesize

        136KB

      • memory/2516-145-0x000002897D6A0000-0x000002897D6AC000-memory.dmp

        Filesize

        48KB

      • memory/2516-146-0x000002897D690000-0x000002897D6A4000-memory.dmp

        Filesize

        80KB

      • memory/2516-147-0x000002897DDE0000-0x000002897DE04000-memory.dmp

        Filesize

        144KB

      • memory/2516-148-0x000002897DE00000-0x000002897DE0A000-memory.dmp

        Filesize

        40KB

      • memory/2516-150-0x000002897DE90000-0x000002897DF42000-memory.dmp

        Filesize

        712KB

      • memory/2516-149-0x000002897DE30000-0x000002897DE5A000-memory.dmp

        Filesize

        168KB

      • memory/2516-151-0x000002897E380000-0x000002897E3D0000-memory.dmp

        Filesize

        320KB

      • memory/2888-130-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2888-141-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3004-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3004-108-0x0000000000400000-0x0000000002B22000-memory.dmp

        Filesize

        39.1MB

      • memory/3004-109-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3004-2-0x00000000030A0000-0x000000000310C000-memory.dmp

        Filesize

        432KB

      • memory/3004-90-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3004-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

        Filesize

        1024KB

      • memory/3004-13-0x0000000000400000-0x0000000002B22000-memory.dmp

        Filesize

        39.1MB

      • memory/3004-63-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

        Filesize

        1024KB

      • memory/4808-15-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/4808-89-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/4808-14-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB

      • memory/4808-18-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4808-17-0x0000000000400000-0x0000000002AFE000-memory.dmp

        Filesize

        39.0MB