Analysis

  • max time kernel
    258s
  • max time network
    268s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/04/2024, 04:48

General

  • Target
    069bebac87e5c2bf6e4c4bfb52a8731e1a98867a3bf1214e56da9ee7f86a62ec.exe
  • Size 347KB
  • Sample240429-ffc61sbb4x
  • SHA256 069bebac87e5c2bf6e4c4bfb52a8731e1a98867a3bf1214e56da9ee7f86a62ec
  • 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
  • Detects Arechclient2 RAT 1 IoCs

    Arechclient2.

  • 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 17 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\069bebac87e5c2bf6e4c4bfb52a8731e1a98867a3bf1214e56da9ee7f86a62ec.exe
    "C:\Users\Admin\AppData\Local\Temp\069bebac87e5c2bf6e4c4bfb52a8731e1a98867a3bf1214e56da9ee7f86a62ec.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Users\Admin\AppData\Local\Temp\u1m4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1m4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1988
    • C:\Users\Admin\AppData\Local\Temp\u1m4.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u1m4.2\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:2032
      • 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:1712
        • 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:2924
    • C:\Users\Admin\AppData\Local\Temp\u1m4.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u1m4.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1460
      • 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:1808

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        df41028dca1f4cb7ba06e7694ab72065.tmp

        • Path C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\f40fa09571ae3e4604ca1ef5093c12d04345052412cd199086553bfab6d3b7c7\df41028dca1f4cb7ba06e7694ab72065.tmp
        • Size 1KB
        • SHA256 a00ea0161417949e3f0f4278b73663dd6e211dcb8b1e7dc2911c9b5dfe22d836
        • MD5 SHA1 SHA512

        U1M41~1.ZIP

        • Path C:\Users\Admin\AppData\Local\Temp\U1M41~1.ZIP
        • Size 3.7MB
        • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
        • MD5 SHA1 SHA512 SSDEEP

        badece93

        • Path C:\Users\Admin\AppData\Local\Temp\badece93
        • Size 1.4MB
        • SHA256 4a3e83ca76d421dbdf17eb7ee8dc497c7df3d2160b6d7bf62b1e0287297f76a9
        • MD5 SHA1 SHA512 SSDEEP

        ioloDMLog.txt

        • Path C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt
        • Size 2KB
        • SHA256 dc18190671365b1cf7baa7fd62c0488893683796d63b816358f1e37ae23a60c2
        • MD5 SHA1 SHA512

        tmpA008.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpA008.tmp
        • Size 20KB
        • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
        • MD5 SHA1 SHA512 SSDEEP

        UIxMarketPlugin.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u1m4.2\UIxMarketPlugin.dll
        • Size 1.6MB
        • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
        • MD5 SHA1 SHA512 SSDEEP

        bunch.dat

        • Path C:\Users\Admin\AppData\Local\Temp\u1m4.2\bunch.dat
        • Size 1.3MB
        • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
        • MD5 SHA1 SHA512 SSDEEP

        relay.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u1m4.2\relay.dll
        • Size 1.5MB
        • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
        • MD5 SHA1 SHA512 SSDEEP

        run.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u1m4.2\run.exe
        • Size 2.4MB
        • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
        • MD5 SHA1 SHA512 SSDEEP

        whale.dbf

        • Path C:\Users\Admin\AppData\Local\Temp\u1m4.2\whale.dbf
        • Size 85KB
        • SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
        • MD5 SHA1 SHA512 SSDEEP

        u1m4.3.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u1m4.3.exe
        • Size 4.6MB
        • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
        • 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

        u1m4.0.exe

        • Path \Users\Admin\AppData\Local\Temp\u1m4.0.exe
        • Size 302KB
        • SHA256 c032e2b1c04b5e2b9bc3ae439e75b993d1e3e03163ac6e589a50cec3745fec7e
        • MD5 SHA1 SHA512 SSDEEP

        memory/1460-284-0x0000000000400000-0x00000000008AD000-memory.dmp

        memory/1712-309-0x0000000073D70000-0x0000000073EE4000-memory.dmp

        memory/1712-185-0x00000000779F0000-0x0000000077B99000-memory.dmp

        memory/1808-303-0x0000000003D70000-0x0000000003D7A000-memory.dmp

        memory/1808-295-0x0000000003F60000-0x0000000003FC2000-memory.dmp

        memory/1808-317-0x0000000003D70000-0x0000000003D7A000-memory.dmp

        memory/1808-318-0x0000000003D70000-0x0000000003D7A000-memory.dmp

        memory/1808-308-0x00000000058F0000-0x00000000058FC000-memory.dmp

        memory/1808-304-0x00000000058C0000-0x00000000058CA000-memory.dmp

        memory/1808-305-0x00000000058D0000-0x00000000058F2000-memory.dmp

        memory/1808-302-0x0000000003D70000-0x0000000003D7A000-memory.dmp

        memory/1808-300-0x000000001FDC0000-0x00000000200C0000-memory.dmp

        memory/1808-285-0x00000000002F0000-0x0000000003BE8000-memory.dmp

        memory/1808-286-0x000000001EE70000-0x000000001EF80000-memory.dmp

        memory/1808-288-0x0000000005920000-0x000000000592C000-memory.dmp

        memory/1808-287-0x0000000003D80000-0x0000000003D90000-memory.dmp

        memory/1808-289-0x0000000003E40000-0x0000000003E54000-memory.dmp

        memory/1808-290-0x000000001E030000-0x000000001E054000-memory.dmp

        memory/1808-292-0x000000001EB10000-0x000000001EB3A000-memory.dmp

        memory/1808-293-0x000000001EF80000-0x000000001F032000-memory.dmp

        memory/1808-296-0x0000000003D50000-0x0000000003D5A000-memory.dmp

        memory/1808-294-0x000000001F9C0000-0x000000001FA3A000-memory.dmp

        memory/1808-291-0x000000001E160000-0x000000001E16A000-memory.dmp

        memory/1988-22-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/1988-180-0x0000000000400000-0x0000000001A17000-memory.dmp

        memory/2032-168-0x0000000073D70000-0x0000000073EE4000-memory.dmp

        memory/2032-182-0x0000000073D70000-0x0000000073EE4000-memory.dmp

        memory/2032-169-0x00000000779F0000-0x0000000077B99000-memory.dmp

        memory/2092-181-0x0000000000400000-0x0000000002B15000-memory.dmp

        memory/2092-246-0x0000000002C70000-0x0000000002D70000-memory.dmp

        memory/2092-248-0x0000000000230000-0x000000000029D000-memory.dmp

        memory/2092-247-0x0000000000400000-0x0000000002B15000-memory.dmp

        memory/2092-1-0x0000000002C70000-0x0000000002D70000-memory.dmp

        memory/2092-3-0x0000000000400000-0x0000000002B15000-memory.dmp

        memory/2092-2-0x0000000000230000-0x000000000029D000-memory.dmp

        memory/2924-316-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2924-315-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2924-314-0x0000000072D00000-0x0000000073D62000-memory.dmp

        memory/2924-319-0x0000000000400000-0x00000000004C6000-memory.dmp