Analysis

  • max time kernel
    134s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    29/04/2024, 07:16

General

  • Target
    e94dbcf6726c38bdc0b82e7610bd7f63.exe
  • Size 347KB
  • Sample240429-h3slbsdc49
  • SHA256 b28f219f6d0565e091f5b45137f970f4e9a69cbb6cb4d635e609a6b53ec25aa9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 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 16 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e94dbcf6726c38bdc0b82e7610bd7f63.exe
    "C:\Users\Admin\AppData\Local\Temp\e94dbcf6726c38bdc0b82e7610bd7f63.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Local\Temp\u11w.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u11w.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2800
    • C:\Users\Admin\AppData\Local\Temp\u11w.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u11w.2\run.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:944
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2176
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2500
    • C:\Users\Admin\AppData\Local\Temp\u11w.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u11w.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1756
      • 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:1100

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        1739645ba3fd4d0480c860a014421dbc.tmp

        • Path C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\a156d2ee87eeb3012aacff4fcc5518f7fa0b2caa0b97ad5a5e46c2e4fdf8c5f4\1739645ba3fd4d0480c860a014421dbc.tmp
        • Size 1KB
        • SHA256 588a737aacebbb3689cef351e01ccf4604a50471aa8755412d2c73e29998c1a0
        • MD5 SHA1 SHA512

        U11W1~1.ZIP

        • Path C:\Users\Admin\AppData\Local\Temp\U11W1~1.ZIP
        • Size 3.7MB
        • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
        • MD5 SHA1 SHA512 SSDEEP

        c1b76199

        • Path C:\Users\Admin\AppData\Local\Temp\c1b76199
        • Size 1.4MB
        • SHA256 6246734b9a27162b4ffdbbfecb9dd5562346ebf47724c807b9600f181d695f7d
        • MD5 SHA1 SHA512 SSDEEP

        tmpA8CE.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpA8CE.tmp
        • Size 20KB
        • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
        • MD5 SHA1 SHA512 SSDEEP

        UIxMarketPlugin.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u11w.2\UIxMarketPlugin.dll
        • Size 1.6MB
        • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
        • MD5 SHA1 SHA512 SSDEEP

        bunch.dat

        • Path C:\Users\Admin\AppData\Local\Temp\u11w.2\bunch.dat
        • Size 1.3MB
        • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
        • MD5 SHA1 SHA512 SSDEEP

        relay.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u11w.2\relay.dll
        • Size 1.5MB
        • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
        • MD5 SHA1 SHA512 SSDEEP

        run.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u11w.2\run.exe
        • Size 2.4MB
        • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
        • MD5 SHA1 SHA512 SSDEEP

        whale.dbf

        • Path C:\Users\Admin\AppData\Local\Temp\u11w.2\whale.dbf
        • Size 85KB
        • SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
        • MD5 SHA1 SHA512 SSDEEP

        mozglue.dll

        • Path \ProgramData\mozglue.dll
        • Size 593KB
        • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
        • MD5 SHA1 SHA512 SSDEEP

        nss3.dll

        • Path \ProgramData\nss3.dll
        • Size 2.0MB
        • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
        • MD5 SHA1 SHA512 SSDEEP

        u11w.0.exe

        • Path \Users\Admin\AppData\Local\Temp\u11w.0.exe
        • Size 204KB
        • SHA256 a825b92f75bda1a0ab93970d92a09b91c04ea7cccae4c7524b2fa4aa9108ffbd
        • MD5 SHA1 SHA512 SSDEEP

        u11w.3.exe

        • Path \Users\Admin\AppData\Local\Temp\u11w.3.exe
        • Size 4.6MB
        • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
        • MD5 SHA1 SHA512 SSDEEP

        memory/944-187-0x0000000074710000-0x0000000074884000-memory.dmp

        memory/944-132-0x0000000074710000-0x0000000074884000-memory.dmp

        memory/944-133-0x0000000077B90000-0x0000000077D39000-memory.dmp

        memory/1100-260-0x000000001EAA0000-0x000000001EACA000-memory.dmp

        memory/1100-256-0x00000000005D0000-0x00000000005E4000-memory.dmp

        memory/1100-270-0x0000000000310000-0x000000000031A000-memory.dmp

        memory/1100-312-0x0000000000310000-0x000000000031A000-memory.dmp

        memory/1100-311-0x0000000000310000-0x000000000031A000-memory.dmp

        memory/1100-252-0x0000000000B70000-0x0000000004468000-memory.dmp

        memory/1100-253-0x000000001F030000-0x000000001F140000-memory.dmp

        memory/1100-254-0x0000000000320000-0x0000000000330000-memory.dmp

        memory/1100-255-0x00000000005E0000-0x00000000005EC000-memory.dmp

        memory/1100-272-0x0000000005A20000-0x0000000005A2A000-memory.dmp

        memory/1100-257-0x0000000005980000-0x00000000059A4000-memory.dmp

        memory/1100-259-0x000000001DF90000-0x000000001DF9A000-memory.dmp

        memory/1100-263-0x0000000000AB0000-0x0000000000B12000-memory.dmp

        memory/1100-262-0x000000001F9C0000-0x000000001FA3A000-memory.dmp

        memory/1100-261-0x000000001ED50000-0x000000001EE02000-memory.dmp

        memory/1100-276-0x000000001DF60000-0x000000001DF6C000-memory.dmp

        memory/1100-268-0x0000000020040000-0x0000000020340000-memory.dmp

        memory/1100-264-0x00000000002F0000-0x00000000002FA000-memory.dmp

        memory/1100-273-0x0000000005A30000-0x0000000005A52000-memory.dmp

        memory/1100-271-0x0000000000310000-0x000000000031A000-memory.dmp

        memory/1364-159-0x0000000000400000-0x0000000002B15000-memory.dmp

        memory/1364-1-0x0000000002C60000-0x0000000002D60000-memory.dmp

        memory/1364-160-0x0000000002C60000-0x0000000002D60000-memory.dmp

        memory/1364-2-0x0000000000230000-0x000000000029D000-memory.dmp

        memory/1364-3-0x0000000000400000-0x0000000002B15000-memory.dmp

        memory/1756-251-0x0000000000400000-0x00000000008AD000-memory.dmp

        memory/2176-192-0x0000000077B90000-0x0000000077D39000-memory.dmp

        memory/2176-313-0x0000000074710000-0x0000000074884000-memory.dmp

        memory/2500-327-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2500-328-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2500-326-0x0000000073110000-0x0000000074172000-memory.dmp

        memory/2500-329-0x0000000000400000-0x00000000004C6000-memory.dmp

        memory/2800-190-0x0000000000400000-0x0000000002AF0000-memory.dmp

        memory/2800-319-0x0000000000400000-0x0000000002AF0000-memory.dmp

        memory/2800-302-0x0000000000400000-0x0000000002AF0000-memory.dmp

        memory/2800-46-0x0000000061E00000-0x0000000061EF3000-memory.dmp