Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/04/2024, 01:13

General

  • Target
    345050de5e24fcf643d92c82ed0b6f240e1b0fc034782b8e3df14fe7556155e3.exe
  • Size 347KB
  • Sample240428-blgn6scf74
  • SHA256 345050de5e24fcf643d92c82ed0b6f240e1b0fc034782b8e3df14fe7556155e3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://185.172.128.62

Attributes
  • url_path

    /902e53a07830e030.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#.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 5 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
  • Detects encrypted or obfuscated .NET executables 1 IoCs
  • 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 3 IoCs
  • Loads dropped DLL 3 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).

  • 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 30 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\345050de5e24fcf643d92c82ed0b6f240e1b0fc034782b8e3df14fe7556155e3.exe
    "C:\Users\Admin\AppData\Local\Temp\345050de5e24fcf643d92c82ed0b6f240e1b0fc034782b8e3df14fe7556155e3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Users\Admin\AppData\Local\Temp\u29w.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u29w.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3008
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3008 -s 1968
        3⤵
        • Program crash
        PID:3668
    • C:\Users\Admin\AppData\Local\Temp\u29w.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u29w.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:4904
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4040
        • 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:5040
    • C:\Users\Admin\AppData\Local\Temp\u29w.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u29w.3.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:1316
      • 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:3940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2948 -s 1552
      2⤵
      • Program crash
      PID:2044
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2948 -ip 2948
    1⤵
      PID:1960
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3008 -ip 3008
      1⤵
        PID:4108

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            Are.docx

            • Path C:\ProgramData\Are.docx
            • Size 11KB
            • SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
            • MD5 SHA1 SHA512 SSDEEP

            mozglue.dll

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

            nss3.dll

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

            aa5941fd

            • Path C:\Users\Admin\AppData\Local\Temp\aa5941fd
            • Size 1.4MB
            • SHA256 59afc3abd96d9cef7fd0e5feddcd0ab59dbe5661da351f1f78897bdc823354ca
            • MD5 SHA1 SHA512 SSDEEP

            tmpE02F.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\tmpE02F.tmp
            • Size 20KB
            • SHA256 5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d
            • MD5 SHA1 SHA512 SSDEEP

            tmpE061.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\tmpE061.tmp
            • Size 20KB
            • SHA256 d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f
            • MD5 SHA1 SHA512 SSDEEP

            u29w.0.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.0.exe
            • Size 226KB
            • SHA256 eeaa177b0bc2d85cf8b416c2ed3b85fd50bd7c811bf41a32d161a10a767c2fda
            • MD5 SHA1 SHA512 SSDEEP

            u29w.1.zip

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.1.zip
            • Size 3.7MB
            • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
            • MD5 SHA1 SHA512 SSDEEP

            UIxMarketPlugin.dll

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.2\UIxMarketPlugin.dll
            • Size 1.6MB
            • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
            • MD5 SHA1 SHA512 SSDEEP

            bunch.dat

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.2\bunch.dat
            • Size 1.3MB
            • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
            • MD5 SHA1 SHA512 SSDEEP

            relay.dll

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.2\relay.dll
            • Size 1.5MB
            • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
            • MD5 SHA1 SHA512 SSDEEP

            run.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.2\run.exe
            • Size 2.4MB
            • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
            • MD5 SHA1 SHA512 SSDEEP

            whale.dbf

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.2\whale.dbf
            • Size 85KB
            • SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
            • MD5 SHA1 SHA512 SSDEEP

            u29w.3.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u29w.3.exe
            • Size 4.6MB
            • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
            • MD5 SHA1 SHA512 SSDEEP

            memory/1316-181-0x0000000000400000-0x00000000008AD000-memory.dmp

            memory/1316-193-0x0000000000400000-0x00000000008AD000-memory.dmp

            memory/2948-1-0x0000000002C40000-0x0000000002D40000-memory.dmp

            memory/2948-122-0x0000000000400000-0x0000000002B15000-memory.dmp

            memory/2948-3-0x0000000000400000-0x0000000002B15000-memory.dmp

            memory/2948-2-0x0000000002F10000-0x0000000002F7D000-memory.dmp

            memory/3008-259-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

            memory/3008-225-0x0000000000400000-0x000000000083A000-memory.dmp

            memory/3008-172-0x0000000000400000-0x000000000083A000-memory.dmp

            memory/3008-145-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            memory/3008-14-0x00000000008C0000-0x00000000008E7000-memory.dmp

            memory/3008-13-0x0000000000AD0000-0x0000000000BD0000-memory.dmp

            memory/3008-274-0x0000000000400000-0x000000000083A000-memory.dmp

            memory/3008-15-0x0000000000400000-0x000000000083A000-memory.dmp

            memory/3008-260-0x0000000000400000-0x000000000083A000-memory.dmp

            memory/3940-224-0x000001CD98B00000-0x000001CD98B0C000-memory.dmp

            memory/3940-216-0x000001CD98D90000-0x000001CD98DB2000-memory.dmp

            memory/3940-201-0x000001CDF94F0000-0x000001CDF951A000-memory.dmp

            memory/3940-202-0x000001CDF98E0000-0x000001CDF9992000-memory.dmp

            memory/3940-204-0x000001CDF9A10000-0x000001CDF9A72000-memory.dmp

            memory/3940-203-0x000001CDF9990000-0x000001CDF9A0A000-memory.dmp

            memory/3940-205-0x000001CDF9AF0000-0x000001CDF9B66000-memory.dmp

            memory/3940-206-0x000001CDF94E0000-0x000001CDF94EA000-memory.dmp

            memory/3940-210-0x000001CDF9B70000-0x000001CDF9E70000-memory.dmp

            memory/3940-212-0x000001CDFDDE0000-0x000001CDFDDE8000-memory.dmp

            memory/3940-214-0x000001CDFDDF0000-0x000001CDFDDFE000-memory.dmp

            memory/3940-213-0x000001CDFDE30000-0x000001CDFDE68000-memory.dmp

            memory/3940-215-0x000001CD98D80000-0x000001CD98D8A000-memory.dmp

            memory/3940-196-0x000001CDF5B40000-0x000001CDF5B50000-memory.dmp

            memory/3940-220-0x000001CD992E0000-0x000001CD99808000-memory.dmp

            memory/3940-223-0x000001CDFE2E0000-0x000001CDFE330000-memory.dmp

            memory/3940-197-0x000001CDF7420000-0x000001CDF742C000-memory.dmp

            memory/3940-199-0x000001CDF94B0000-0x000001CDF94D4000-memory.dmp

            memory/3940-229-0x000001CDFDE70000-0x000001CDFDE92000-memory.dmp

            memory/3940-233-0x000001CDFDEA0000-0x000001CDFDEBE000-memory.dmp

            memory/3940-194-0x000001CDF1DD0000-0x000001CDF56C8000-memory.dmp

            memory/3940-200-0x000001CDF94D0000-0x000001CDF94DA000-memory.dmp

            memory/3940-198-0x000001CDF7410000-0x000001CDF7424000-memory.dmp

            memory/3940-195-0x000001CDF9690000-0x000001CDF97A0000-memory.dmp

            memory/4040-254-0x0000000073410000-0x000000007358B000-memory.dmp

            memory/4040-179-0x00007FF8626F0000-0x00007FF8628E5000-memory.dmp

            memory/4904-102-0x00007FF8626F0000-0x00007FF8628E5000-memory.dmp

            memory/4904-101-0x0000000073410000-0x000000007358B000-memory.dmp

            memory/4904-127-0x0000000073410000-0x000000007358B000-memory.dmp

            memory/5040-280-0x0000000004FB0000-0x0000000005000000-memory.dmp

            memory/5040-277-0x00000000054E0000-0x0000000005A84000-memory.dmp

            memory/5040-278-0x0000000005250000-0x0000000005412000-memory.dmp

            memory/5040-279-0x0000000004F30000-0x0000000004FA6000-memory.dmp

            memory/5040-271-0x0000000071FB0000-0x0000000073204000-memory.dmp

            memory/5040-281-0x0000000004EA0000-0x0000000004EAA000-memory.dmp

            memory/5040-282-0x00000000060C0000-0x00000000065EC000-memory.dmp

            memory/5040-283-0x0000000005480000-0x000000000549E000-memory.dmp

            memory/5040-284-0x0000000005C10000-0x0000000005C76000-memory.dmp

            memory/5040-276-0x0000000004DF0000-0x0000000004E82000-memory.dmp

            memory/5040-275-0x0000000000740000-0x0000000000806000-memory.dmp

            memory/5040-303-0x00000000074C0000-0x00000000074CA000-memory.dmp