Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-03-2024 00:15

General

  • Target

    dc87c553f18d409daafd6af7f4feaab1685367c573d22181ca1397737b92d93b.exe

  • Size

    409KB

  • MD5

    29c17bac7bd976f82a4d3585d17fb89b

  • SHA1

    940c2887c6119ab5d1d122aafdf2202dfb531379

  • SHA256

    dc87c553f18d409daafd6af7f4feaab1685367c573d22181ca1397737b92d93b

  • SHA512

    7b5cc9660553e2b678785e44f36cb539267326d32818389954421c1399ace8ec05329a25e774d195119f8349e1b7aed94f7159e84c479510e6ce8d360134e928

  • SSDEEP

    6144:Jm6lOzD+VISaP8j/1+UtArRTOpGEsKmqYBd3a5eRkTjzUAfJkm/:w6lOzyVIbPzcA1WGwmqqdqU6LHum/

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.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 3 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc87c553f18d409daafd6af7f4feaab1685367c573d22181ca1397737b92d93b.exe
    "C:\Users\Admin\AppData\Local\Temp\dc87c553f18d409daafd6af7f4feaab1685367c573d22181ca1397737b92d93b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3516
    • C:\Users\Admin\AppData\Local\Temp\u2po.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2po.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\GDBFCGIIIJ.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3872
        • C:\Users\Admin\AppData\Local\Temp\GDBFCGIIIJ.exe
          "C:\Users\Admin\AppData\Local\Temp\GDBFCGIIIJ.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4680
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\GDBFCGIIIJ.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2056
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:1124
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1768 -s 2464
        3⤵
        • Program crash
        PID:4668
    • C:\Users\Admin\AppData\Local\Temp\u2po.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2po.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4488
      • 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:4660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3516 -s 1168
      2⤵
      • Program crash
      PID:244
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3516 -ip 3516
    1⤵
      PID:848
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1768 -ip 1768
      1⤵
        PID:3920

      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

        494KB

        MD5

        4a7ed868e6977b30298d3b3983086f2d

        SHA1

        3635dc8a620ca034c390b0e0fdf7635734244c76

        SHA256

        f12704a2466316ff3e9471097b7cd8e0e61579c8d10c8dd38ee9a4741d011b1c

        SHA512

        b6a98f4833de0de1d106418505da98e2a6f563e7755318bb64ca7875a21fea9e67e51001e533572fd103da7001a6bb8fd35519e623fdb3c98b4d116c5791b232

      • C:\ProgramData\mozglue.dll

        Filesize

        352KB

        MD5

        de991b746ccd00a66ca055db26ae38ad

        SHA1

        5ab15cabfd7c7fb4ffb1b06856382f56b01cfacf

        SHA256

        70dfe379d616c41f9a69e96af6c3e5e7d1af889d91fc9e0c51d10d94021c02c7

        SHA512

        106e25cba2997b9aa0ca7f7c0083e2c5df57a4ab804727d600d258936f8d6328b993bfa1071e2aaf707e1e01729842b4802a097a1640ccabc57ea5193892bf52

      • C:\ProgramData\nss3.dll

        Filesize

        591KB

        MD5

        250111418435d444c456125866ec790b

        SHA1

        dd78f8c748d016707719c8254b15a329eb5e2fb8

        SHA256

        9640f4f6f3a25424960ef1eeff3170cb0694166775eec1fe567c540340ba5148

        SHA512

        2128ae90729388e5523cb201365194f010b7f8aea384da3bf551de522eaa714ecf26248e3fc30f177d1fed28fa930f68ce2c6f0fc48fef8c7a9208359f246486

      • C:\Users\Admin\AppData\Local\Temp\GDBFCGIIIJ.exe

        Filesize

        101KB

        MD5

        42b838cf8bdf67400525e128d917f6e0

        SHA1

        a578f6faec738912dba8c41e7abe1502c46d0cae

        SHA256

        0e4ffba62ce9a464aa1b7ff9f1e55ace8f51ff1e15102d856f801a81f8b4607d

        SHA512

        f64b39d885375251ab7db72c57dc5b5095f0c6412169f1035d1f6a25b8415a2a01004d06bfa0267cf683ef7dea7a9f969ad43fde5a4376f1fcb65a57403433c0

      • C:\Users\Admin\AppData\Local\Temp\u2po.0.exe

        Filesize

        261KB

        MD5

        369bcf5627230da1e49844148acf3fe1

        SHA1

        929b7947ca9e37b4b7f9e8c881ac31f86a6d29e3

        SHA256

        347ea599612fa73c1ad9b66eb576f6e74d4435bd1bdc4488f6d93e7564e3e1f4

        SHA512

        3274e4d9482b58eef43058ce6355db3b74f038f8af08bed04b0e86b5f5eb56ffbbe84c7b6cd4e0357d306069e30bc86de558f4e559c32a8a0bb9c8f040bbb490

      • C:\Users\Admin\AppData\Local\Temp\u2po.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1768-192-0x0000000000400000-0x000000000063B000-memory.dmp

        Filesize

        2.2MB

      • memory/1768-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/1768-15-0x0000000000400000-0x000000000063B000-memory.dmp

        Filesize

        2.2MB

      • memory/1768-203-0x0000000000400000-0x000000000063B000-memory.dmp

        Filesize

        2.2MB

      • memory/1768-100-0x0000000000400000-0x000000000063B000-memory.dmp

        Filesize

        2.2MB

      • memory/1768-138-0x00000000007C0000-0x00000000008C0000-memory.dmp

        Filesize

        1024KB

      • memory/1768-137-0x0000000000400000-0x000000000063B000-memory.dmp

        Filesize

        2.2MB

      • memory/1768-14-0x0000000002370000-0x0000000002397000-memory.dmp

        Filesize

        156KB

      • memory/1768-13-0x00000000007C0000-0x00000000008C0000-memory.dmp

        Filesize

        1024KB

      • memory/3516-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

        Filesize

        1024KB

      • memory/3516-74-0x00000000023F0000-0x000000000245F000-memory.dmp

        Filesize

        444KB

      • memory/3516-73-0x0000000000400000-0x000000000056B000-memory.dmp

        Filesize

        1.4MB

      • memory/3516-3-0x0000000000400000-0x000000000056B000-memory.dmp

        Filesize

        1.4MB

      • memory/3516-2-0x00000000023F0000-0x000000000245F000-memory.dmp

        Filesize

        444KB

      • memory/4488-136-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4488-104-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4488-68-0x0000000002760000-0x0000000002761000-memory.dmp

        Filesize

        4KB

      • memory/4660-150-0x000001386D970000-0x000001386D9EA000-memory.dmp

        Filesize

        488KB

      • memory/4660-170-0x00000138725B0000-0x0000013872600000-memory.dmp

        Filesize

        320KB

      • memory/4660-146-0x000001386D480000-0x000001386D4A4000-memory.dmp

        Filesize

        144KB

      • memory/4660-145-0x000001386CC40000-0x000001386CC54000-memory.dmp

        Filesize

        80KB

      • memory/4660-147-0x000001386D4B0000-0x000001386D4BA000-memory.dmp

        Filesize

        40KB

      • memory/4660-148-0x000001386D5D0000-0x000001386D5FA000-memory.dmp

        Filesize

        168KB

      • memory/4660-152-0x000001386DAD0000-0x000001386DB46000-memory.dmp

        Filesize

        472KB

      • memory/4660-151-0x000001386D9F0000-0x000001386DA52000-memory.dmp

        Filesize

        392KB

      • memory/4660-143-0x000001386CC30000-0x000001386CC40000-memory.dmp

        Filesize

        64KB

      • memory/4660-149-0x000001386D8C0000-0x000001386D972000-memory.dmp

        Filesize

        712KB

      • memory/4660-153-0x000001386CC10000-0x000001386CC1A000-memory.dmp

        Filesize

        40KB

      • memory/4660-157-0x000001386DB50000-0x000001386DE50000-memory.dmp

        Filesize

        3.0MB

      • memory/4660-161-0x000001386DAC0000-0x000001386DAC8000-memory.dmp

        Filesize

        32KB

      • memory/4660-160-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-162-0x0000013871E90000-0x0000013871EC8000-memory.dmp

        Filesize

        224KB

      • memory/4660-163-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-164-0x0000013871790000-0x000001387179E000-memory.dmp

        Filesize

        56KB

      • memory/4660-165-0x0000013871F00000-0x0000013871F0A000-memory.dmp

        Filesize

        40KB

      • memory/4660-159-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-166-0x00000138727E0000-0x0000013872802000-memory.dmp

        Filesize

        136KB

      • memory/4660-167-0x0000013872D30000-0x0000013873258000-memory.dmp

        Filesize

        5.2MB

      • memory/4660-144-0x000001386CC50000-0x000001386CC5C000-memory.dmp

        Filesize

        48KB

      • memory/4660-171-0x0000013871F10000-0x0000013871F1C000-memory.dmp

        Filesize

        48KB

      • memory/4660-172-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-173-0x0000013872600000-0x0000013872622000-memory.dmp

        Filesize

        136KB

      • memory/4660-174-0x0000013872590000-0x00000138725AE000-memory.dmp

        Filesize

        120KB

      • memory/4660-177-0x00007FFFEB3C0000-0x00007FFFEBE82000-memory.dmp

        Filesize

        10.8MB

      • memory/4660-186-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-187-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-142-0x000001386D660000-0x000001386D76E000-memory.dmp

        Filesize

        1.1MB

      • memory/4660-141-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-193-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-140-0x0000013867550000-0x000001386AE22000-memory.dmp

        Filesize

        56.8MB

      • memory/4660-200-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-205-0x000001386D4C0000-0x000001386D4D0000-memory.dmp

        Filesize

        64KB

      • memory/4660-139-0x00007FFFEB3C0000-0x00007FFFEBE82000-memory.dmp

        Filesize

        10.8MB

      • memory/4680-201-0x00000000003F0000-0x000000000040E000-memory.dmp

        Filesize

        120KB

      • memory/4680-202-0x0000000071F10000-0x00000000726C1000-memory.dmp

        Filesize

        7.7MB

      • memory/4680-204-0x0000000004F00000-0x0000000004F10000-memory.dmp

        Filesize

        64KB

      • memory/4680-207-0x0000000071F10000-0x00000000726C1000-memory.dmp

        Filesize

        7.7MB

      • memory/4680-208-0x0000000004F00000-0x0000000004F10000-memory.dmp

        Filesize

        64KB