Analysis

  • max time kernel
    145s
  • max time network
    138s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01-05-2024 05:01

General

  • Target

    3b81cf93df6e5fc0ec6c6dd23b897906df4df8b669a833a2fa748407831496db.exe

  • Size

    357KB

  • MD5

    a9e226e426009396e811b5447833f70f

  • SHA1

    96cf9fcf371d332c55ef119ee8b3af8955ba2fbf

  • SHA256

    3b81cf93df6e5fc0ec6c6dd23b897906df4df8b669a833a2fa748407831496db

  • SHA512

    f8b3dc52b84ed3022d0980808dac3f124ed107798ef7383d05bcd19bb2ca0456829b9014465e171829886712e0dd02989842724c3b84b0e0f658e2e15263bc66

  • SSDEEP

    6144:Eb1oPfz7v/xnKaYwsK+R4VWFvd7qw5Q88pTrO3p4B/2rowNroQFLtNLZBINdz/:k6n/JbYyw563OKsCQFLtpDKz/

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 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 29 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 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b81cf93df6e5fc0ec6c6dd23b897906df4df8b669a833a2fa748407831496db.exe
    "C:\Users\Admin\AppData\Local\Temp\3b81cf93df6e5fc0ec6c6dd23b897906df4df8b669a833a2fa748407831496db.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\u1xs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1xs.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3264
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3264 -s 2460
        3⤵
        • Program crash
        PID:1792
    • C:\Users\Admin\AppData\Local\Temp\u1xs.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u1xs.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:2460
      • 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:1192
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3540
    • C:\Users\Admin\AppData\Local\Temp\u1xs.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u1xs.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4980
      • 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:4736
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 1156
      2⤵
      • Program crash
      PID:3500
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2512 -ip 2512
    1⤵
      PID:2316
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3264 -ip 3264
      1⤵
        PID:3988

      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\af864505

        Filesize

        1.4MB

        MD5

        aa0e124a74010041d12b21b2e7e3e213

        SHA1

        75635a2ec49896ea00d22afaf327be0638fb3a9a

        SHA256

        ba72a7925087bbe6f264521e7865e59482e9300829df622d0cf9a28bdc406259

        SHA512

        26ac577fe1d4e12c8a3c48f4266ef2e557883303705c70f9e903ef74d2a5a6d08ef9938d4cc89e2b6bb9f76146030e7a38dd940a88d9e4a355c79bfd3cee2fa3

      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

        Filesize

        2KB

        MD5

        f12428100d58500039511fb034c966bb

        SHA1

        4fc896484b9b76362dd715d1be1f3060753ae5be

        SHA256

        da00397de009e209fbcb9025b5394e9e89f72a4c337c2a2267cb5a8decd6c7aa

        SHA512

        a4c752d1235c4f1b1ce40487cd224392f6548a5da7e1374385a423cc6aae433379f5c52af4c7c1dae6ef8f02c03741e397299d4bb46a466a813ca8b35d209c83

      • C:\Users\Admin\AppData\Local\Temp\tmpECB3.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmpECD5.tmp

        Filesize

        20KB

        MD5

        22be08f683bcc01d7a9799bbd2c10041

        SHA1

        2efb6041cf3d6e67970135e592569c76fc4c41de

        SHA256

        451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457

        SHA512

        0eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936

      • C:\Users\Admin\AppData\Local\Temp\u1xs.0.exe

        Filesize

        212KB

        MD5

        45e123b5f3a97f951544f570dbbcf8d6

        SHA1

        5e3017ff624bc0674d2c5e3939894e89bbb98f98

        SHA256

        17190c746e9d36b5e92ba6f3f52c6bd3e876051dae475bb1a2da3728e6d54bed

        SHA512

        a43c894fcf7c851d35be7b2fe33dc369d05f10448cfcdb8fcd95578f8e29ef7c675848963491a9813207393d248db5e8a9d986f131b23ce60fd3e3a79ceb6e19

      • C:\Users\Admin\AppData\Local\Temp\u1xs.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u1xs.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u1xs.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u1xs.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u1xs.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u1xs.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • C:\Users\Admin\AppData\Local\Temp\u1xs.3.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1192-267-0x0000000072550000-0x00000000726CD000-memory.dmp

        Filesize

        1.5MB

      • memory/1192-188-0x00007FF91B9A0000-0x00007FF91BBA9000-memory.dmp

        Filesize

        2.0MB

      • memory/2460-127-0x0000000072550000-0x00000000726CD000-memory.dmp

        Filesize

        1.5MB

      • memory/2460-99-0x00007FF91B9A0000-0x00007FF91BBA9000-memory.dmp

        Filesize

        2.0MB

      • memory/2460-98-0x0000000072550000-0x00000000726CD000-memory.dmp

        Filesize

        1.5MB

      • memory/2512-1-0x0000000002E20000-0x0000000002F20000-memory.dmp

        Filesize

        1024KB

      • memory/2512-2-0x0000000002D90000-0x0000000002DFD000-memory.dmp

        Filesize

        436KB

      • memory/2512-121-0x0000000002D90000-0x0000000002DFD000-memory.dmp

        Filesize

        436KB

      • memory/2512-119-0x0000000000400000-0x0000000002B17000-memory.dmp

        Filesize

        39.1MB

      • memory/2512-3-0x0000000000400000-0x0000000002B17000-memory.dmp

        Filesize

        39.1MB

      • memory/3264-130-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3264-187-0x0000000000400000-0x0000000002AF3000-memory.dmp

        Filesize

        38.9MB

      • memory/3264-126-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

        Filesize

        1024KB

      • memory/3264-257-0x0000000000400000-0x0000000002AF3000-memory.dmp

        Filesize

        38.9MB

      • memory/3264-268-0x0000000000400000-0x0000000002AF3000-memory.dmp

        Filesize

        38.9MB

      • memory/3540-281-0x0000000006670000-0x0000000006B9C000-memory.dmp

        Filesize

        5.2MB

      • memory/3540-279-0x0000000005620000-0x0000000005670000-memory.dmp

        Filesize

        320KB

      • memory/3540-278-0x0000000005560000-0x00000000055D6000-memory.dmp

        Filesize

        472KB

      • memory/3540-277-0x00000000057F0000-0x00000000059B2000-memory.dmp

        Filesize

        1.8MB

      • memory/3540-276-0x0000000005A90000-0x0000000006036000-memory.dmp

        Filesize

        5.6MB

      • memory/3540-275-0x0000000005440000-0x00000000054D2000-memory.dmp

        Filesize

        584KB

      • memory/3540-274-0x0000000000D00000-0x0000000000DC6000-memory.dmp

        Filesize

        792KB

      • memory/3540-270-0x00000000728F0000-0x0000000073C07000-memory.dmp

        Filesize

        19.1MB

      • memory/3540-280-0x00000000054E0000-0x00000000054EA000-memory.dmp

        Filesize

        40KB

      • memory/3540-282-0x0000000006160000-0x000000000617E000-memory.dmp

        Filesize

        120KB

      • memory/3540-283-0x0000000006230000-0x0000000006296000-memory.dmp

        Filesize

        408KB

      • memory/4736-231-0x000001B242F70000-0x000001B242F94000-memory.dmp

        Filesize

        144KB

      • memory/4736-234-0x000001B2434F0000-0x000001B24351A000-memory.dmp

        Filesize

        168KB

      • memory/4736-247-0x000001B2483A0000-0x000001B2483AA000-memory.dmp

        Filesize

        40KB

      • memory/4736-248-0x000001B2483B0000-0x000001B2483D2000-memory.dmp

        Filesize

        136KB

      • memory/4736-249-0x000001B248900000-0x000001B248E28000-memory.dmp

        Filesize

        5.2MB

      • memory/4736-253-0x000001B248120000-0x000001B24812C000-memory.dmp

        Filesize

        48KB

      • memory/4736-252-0x000001B248170000-0x000001B2481C0000-memory.dmp

        Filesize

        320KB

      • memory/4736-254-0x000001B2481C0000-0x000001B2481E2000-memory.dmp

        Filesize

        136KB

      • memory/4736-255-0x000001B2481F0000-0x000001B24820E000-memory.dmp

        Filesize

        120KB

      • memory/4736-246-0x000001B247A10000-0x000001B247A1E000-memory.dmp

        Filesize

        56KB

      • memory/4736-244-0x000001B248100000-0x000001B248108000-memory.dmp

        Filesize

        32KB

      • memory/4736-232-0x000001B242FA0000-0x000001B242FAA000-memory.dmp

        Filesize

        40KB

      • memory/4736-233-0x000001B243440000-0x000001B2434F2000-memory.dmp

        Filesize

        712KB

      • memory/4736-245-0x000001B247A40000-0x000001B247A78000-memory.dmp

        Filesize

        224KB

      • memory/4736-273-0x000001B242FE0000-0x000001B243193000-memory.dmp

        Filesize

        1.7MB

      • memory/4736-242-0x000001B243700000-0x000001B243A00000-memory.dmp

        Filesize

        3.0MB

      • memory/4736-238-0x000001B242FB0000-0x000001B242FBA000-memory.dmp

        Filesize

        40KB

      • memory/4736-236-0x000001B2435A0000-0x000001B243602000-memory.dmp

        Filesize

        392KB

      • memory/4736-237-0x000001B243680000-0x000001B2436F6000-memory.dmp

        Filesize

        472KB

      • memory/4736-235-0x000001B243520000-0x000001B24359A000-memory.dmp

        Filesize

        488KB

      • memory/4736-228-0x000001B242EF0000-0x000001B242F00000-memory.dmp

        Filesize

        64KB

      • memory/4736-229-0x000001B242F10000-0x000001B242F1C000-memory.dmp

        Filesize

        48KB

      • memory/4736-230-0x000001B242F00000-0x000001B242F14000-memory.dmp

        Filesize

        80KB

      • memory/4736-227-0x000001B2431A0000-0x000001B2432B0000-memory.dmp

        Filesize

        1.1MB

      • memory/4736-226-0x000001B224F50000-0x000001B228848000-memory.dmp

        Filesize

        57.0MB

      • memory/4980-225-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4980-191-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB