Analysis

  • max time kernel
    133s
  • max time network
    131s
  • 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 07:29

General

  • Target

    6ea0b55bd9ae6db1e9a74279e4e647f2d203fa43f05bf4a853882bf3d3779374.exe

  • Size

    416KB

  • MD5

    26e67fd264371701c3b7e0e2ada30980

  • SHA1

    b4e80344ab76faf4414982d79b7ad0307264412c

  • SHA256

    6ea0b55bd9ae6db1e9a74279e4e647f2d203fa43f05bf4a853882bf3d3779374

  • SHA512

    b587a1b860e3bf594621082b899e44912749654021269d0738def79d4247ac7778e4ed2bcd8fe49d9e0435b543c12b56b72816e1e5cf7be6292b8686259f009c

  • SSDEEP

    12288:t3qzdg7K81Yszs4M1+KsjHhuYWa3KtwrSAPt61:MmZYR8jHhuYF161

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 28 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\6ea0b55bd9ae6db1e9a74279e4e647f2d203fa43f05bf4a853882bf3d3779374.exe
    "C:\Users\Admin\AppData\Local\Temp\6ea0b55bd9ae6db1e9a74279e4e647f2d203fa43f05bf4a853882bf3d3779374.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Users\Admin\AppData\Local\Temp\u30w.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u30w.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1888
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 2340
        3⤵
        • Program crash
        PID:3608
    • C:\Users\Admin\AppData\Local\Temp\u30w.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u30w.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:1456
      • 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:1316
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3920 -s 968
      2⤵
      • Program crash
      PID:3504
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3920 -ip 3920
    1⤵
      PID:4244
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1888 -ip 1888
      1⤵
        PID:3716

      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

        42df51f5ee126904779363948325c3e6

        SHA1

        0c82b50f3f57745aa057db321cd20f890f067cdf

        SHA256

        261cc1c7979062be60c69d6525d29c318ad1bfea2300cfd003c34e789cc9ef63

        SHA512

        c5d44a46d4eb0a9d3be83fdaca31a24d681cfb9ec63c450843d62b362da943b6866bcac0460002da967b3df3aa081d667f983ca545404f883f389f7ac8487dcf

      • C:\Users\Admin\AppData\Local\Temp\u30w.0.exe

        Filesize

        275KB

        MD5

        f3b64df1e1dcadb996afbd29f802b98f

        SHA1

        cc732d26d161e0369cb31b6e1d69dbe966540e56

        SHA256

        bb00ccce42346fcb6962e38f7e5cb22537210e838ee150731fb17babe2d114a1

        SHA512

        d17eb25749d97647175f9704685bee347631fbf72bf718d997e98ac9fea0c5bd41772430982f7e28ef1f2dfcf0a716ca634559033435c4e12da72caad8d63c3b

      • C:\Users\Admin\AppData\Local\Temp\u30w.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1316-163-0x000001C9C5A80000-0x000001C9C5D80000-memory.dmp

        Filesize

        3.0MB

      • memory/1316-170-0x000001C9CAF10000-0x000001C9CAF32000-memory.dmp

        Filesize

        136KB

      • memory/1316-188-0x000001C9C5DE0000-0x000001C9C5DFE000-memory.dmp

        Filesize

        120KB

      • memory/1316-185-0x000001C9C5DB0000-0x000001C9C5DD2000-memory.dmp

        Filesize

        136KB

      • memory/1316-174-0x000001C9CACD0000-0x000001C9CAD20000-memory.dmp

        Filesize

        320KB

      • memory/1316-175-0x000001C9CAC80000-0x000001C9CAC8C000-memory.dmp

        Filesize

        48KB

      • memory/1316-171-0x000001C9CB460000-0x000001C9CB988000-memory.dmp

        Filesize

        5.2MB

      • memory/1316-169-0x000001C9CAF00000-0x000001C9CAF0A000-memory.dmp

        Filesize

        40KB

      • memory/1316-167-0x000001C9C9D70000-0x000001C9C9D7E000-memory.dmp

        Filesize

        56KB

      • memory/1316-166-0x000001C9C9DA0000-0x000001C9C9DD8000-memory.dmp

        Filesize

        224KB

      • memory/1316-165-0x000001C9CA460000-0x000001C9CA468000-memory.dmp

        Filesize

        32KB

      • memory/1316-147-0x000001C9A65D0000-0x000001C9A9EC8000-memory.dmp

        Filesize

        57.0MB

      • memory/1316-148-0x000001C9C5620000-0x000001C9C5730000-memory.dmp

        Filesize

        1.1MB

      • memory/1316-149-0x000001C9AA550000-0x000001C9AA560000-memory.dmp

        Filesize

        64KB

      • memory/1316-150-0x000001C9AA570000-0x000001C9AA57C000-memory.dmp

        Filesize

        48KB

      • memory/1316-151-0x000001C9AA560000-0x000001C9AA574000-memory.dmp

        Filesize

        80KB

      • memory/1316-152-0x000001C9C5220000-0x000001C9C5244000-memory.dmp

        Filesize

        144KB

      • memory/1316-153-0x000001C9AA580000-0x000001C9AA58A000-memory.dmp

        Filesize

        40KB

      • memory/1316-154-0x000001C9C5460000-0x000001C9C5512000-memory.dmp

        Filesize

        712KB

      • memory/1316-156-0x000001C9C5920000-0x000001C9C5982000-memory.dmp

        Filesize

        392KB

      • memory/1316-157-0x000001C9C5870000-0x000001C9C589A000-memory.dmp

        Filesize

        168KB

      • memory/1316-155-0x000001C9C58A0000-0x000001C9C591A000-memory.dmp

        Filesize

        488KB

      • memory/1316-158-0x000001C9C5A00000-0x000001C9C5A76000-memory.dmp

        Filesize

        472KB

      • memory/1316-159-0x000001C9C5240000-0x000001C9C524A000-memory.dmp

        Filesize

        40KB

      • memory/1456-146-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1456-145-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1888-187-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1888-18-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1888-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1888-133-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1888-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/1888-17-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/3920-1-0x0000000001B00000-0x0000000001C00000-memory.dmp

        Filesize

        1024KB

      • memory/3920-2-0x0000000003670000-0x00000000036DC000-memory.dmp

        Filesize

        432KB

      • memory/3920-82-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3920-81-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/3920-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB