Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 07:02

General

  • Target

    a17d9bf89857acbd61878f1fc0d1b5c0b8eb1bec01cb6495246156433f2b3271.exe

  • Size

    416KB

  • MD5

    f62011816645ce3d94b92743b3704f29

  • SHA1

    3e9510d78a15095d02d35a3790ad3bd4ac2c869e

  • SHA256

    a17d9bf89857acbd61878f1fc0d1b5c0b8eb1bec01cb6495246156433f2b3271

  • SHA512

    1e915db820016db8d1b6bb69d0fa96c686fcba258c7b918fa1101fdce676ef616f9be031c5e6b38b8dd2e3573f5eec15a34485264e452833c4154841a6790a3d

  • SSDEEP

    6144:uE9fYb7tyBIBFPOofY+dZLomCu9PVDro/rTsKIknXjrxPmHQTNWekuMis:uEeHtJBFNYnKJro/rIKdXjF+w8Hus

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\a17d9bf89857acbd61878f1fc0d1b5c0b8eb1bec01cb6495246156433f2b3271.exe
    "C:\Users\Admin\AppData\Local\Temp\a17d9bf89857acbd61878f1fc0d1b5c0b8eb1bec01cb6495246156433f2b3271.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:512
    • C:\Users\Admin\AppData\Local\Temp\ue8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\ue8.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 2360
        3⤵
        • Program crash
        PID:4852
    • C:\Users\Admin\AppData\Local\Temp\ue8.1.exe
      "C:\Users\Admin\AppData\Local\Temp\ue8.1.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:4048
      • 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:3716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 1140
      2⤵
      • Program crash
      PID:3168
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 512 -ip 512
    1⤵
      PID:2196
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3576 -ip 3576
      1⤵
        PID:3464

      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

        8c1e784a6e9ba9f7d65fbfa2eefb3d51

        SHA1

        98fb5e48f9a55fed7b01c74c4c8836b3e4a08272

        SHA256

        1e6a3427873251becf6efe3d095d4eb15354b7dcc1c284348d507bde115ff833

        SHA512

        a4ea944aad35f052b509220ac06366decb3951772d951cfaef627574d9147ebd3da0495b33994eed8b18e0c3b8ba8c69fe610a4c1c0cccd5258e6718c632b8cd

      • C:\Users\Admin\AppData\Local\Temp\ue8.0.exe

        Filesize

        275KB

        MD5

        83493b3717b3e54113b89fe0e5b765a1

        SHA1

        0e0b8f1f0a18258e9130f151c06b163418f7a90e

        SHA256

        3cf852a87b37cd494844030de64eec372931b19570a10e0896fc18c94bb99627

        SHA512

        85dd3e6cfc6ed41fe045627d5f701455d94320e7ad21e2ffaff55607b390224e70b2923c2e327e68463fe91a84755fc04f3e3e753720c7d0ede53ba129df0121

      • C:\Users\Admin\AppData\Local\Temp\ue8.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/512-9-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/512-28-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/512-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/512-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

        Filesize

        1024KB

      • memory/512-2-0x00000000047D0000-0x000000000483C000-memory.dmp

        Filesize

        432KB

      • memory/512-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3576-168-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3576-73-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3576-88-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3576-80-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3716-85-0x0000025B2CC40000-0x0000025B2CC4A000-memory.dmp

        Filesize

        40KB

      • memory/3716-84-0x0000025B2BD60000-0x0000025B2BD68000-memory.dmp

        Filesize

        32KB

      • memory/3716-69-0x0000025B27500000-0x0000025B2752A000-memory.dmp

        Filesize

        168KB

      • memory/3716-70-0x0000025B278F0000-0x0000025B279A2000-memory.dmp

        Filesize

        712KB

      • memory/3716-71-0x0000025B279F0000-0x0000025B27A40000-memory.dmp

        Filesize

        320KB

      • memory/3716-72-0x0000025B27660000-0x0000025B27682000-memory.dmp

        Filesize

        136KB

      • memory/3716-74-0x0000025B274E0000-0x0000025B274EA000-memory.dmp

        Filesize

        40KB

      • memory/3716-78-0x0000025B27A40000-0x0000025B27D40000-memory.dmp

        Filesize

        3.0MB

      • memory/3716-67-0x0000025B27370000-0x0000025B27394000-memory.dmp

        Filesize

        144KB

      • memory/3716-66-0x0000025B27350000-0x0000025B27364000-memory.dmp

        Filesize

        80KB

      • memory/3716-81-0x0000025B2BDF0000-0x0000025B2BDF8000-memory.dmp

        Filesize

        32KB

      • memory/3716-83-0x0000025B2BD40000-0x0000025B2BD4E000-memory.dmp

        Filesize

        56KB

      • memory/3716-82-0x0000025B2BD70000-0x0000025B2BDA8000-memory.dmp

        Filesize

        224KB

      • memory/3716-68-0x0000025B27390000-0x0000025B2739A000-memory.dmp

        Filesize

        40KB

      • memory/3716-65-0x0000025B27360000-0x0000025B2736C000-memory.dmp

        Filesize

        48KB

      • memory/3716-87-0x0000025B2CC70000-0x0000025B2CC92000-memory.dmp

        Filesize

        136KB

      • memory/3716-86-0x0000025B2CF00000-0x0000025B2CF62000-memory.dmp

        Filesize

        392KB

      • memory/3716-64-0x0000025B0D1E0000-0x0000025B0D1F0000-memory.dmp

        Filesize

        64KB

      • memory/3716-103-0x0000025B2D490000-0x0000025B2D9B8000-memory.dmp

        Filesize

        5.2MB

      • memory/3716-124-0x0000025B27D40000-0x0000025B27D4C000-memory.dmp

        Filesize

        48KB

      • memory/3716-63-0x0000025B276A0000-0x0000025B277AA000-memory.dmp

        Filesize

        1.0MB

      • memory/3716-62-0x0000025B095A0000-0x0000025B0CDD4000-memory.dmp

        Filesize

        56.2MB

      • memory/3716-148-0x0000025B2CC90000-0x0000025B2CD06000-memory.dmp

        Filesize

        472KB

      • memory/3716-169-0x0000025B28010000-0x0000025B2802E000-memory.dmp

        Filesize

        120KB

      • memory/4048-49-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4048-61-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB