Analysis

  • max time kernel
    112s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-04-2024 15:48

General

  • Target

    5d0de0a2da9fed28262c517829020dbb8b032abcbb41e0c08a210362a261e15f.exe

  • Size

    347KB

  • MD5

    a5cea018915e418118d49d228d11cc8c

  • SHA1

    79664019ab578f8aafd85513e01b2401481e7c96

  • SHA256

    5d0de0a2da9fed28262c517829020dbb8b032abcbb41e0c08a210362a261e15f

  • SHA512

    0c63e112d13b24644a5cdf61301aaedc29a353a193e815a3f6931fe83e4b789add6cc8717d829e85b36cf2ff3e8f8a4aee47cd8cc1fae1a9ce9ee5c036dd7550

  • SSDEEP

    6144:P1SlGfYPq0CBuE7ksjf4chEbx0v4DOfJMiV8gbmRCDFhr19s21i:sPucEQmPGbxqelgTbMsk21i

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.151

Attributes
  • url_path

    /7043a0c6a68d9c65.php

Signatures

  • SectopRAT

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

  • SectopRAT payload 1 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 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 processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d0de0a2da9fed28262c517829020dbb8b032abcbb41e0c08a210362a261e15f.exe
    "C:\Users\Admin\AppData\Local\Temp\5d0de0a2da9fed28262c517829020dbb8b032abcbb41e0c08a210362a261e15f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Users\Admin\AppData\Local\Temp\u1cw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1cw.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4656
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 2496
        3⤵
        • Program crash
        PID:1844
    • C:\Users\Admin\AppData\Local\Temp\u1cw.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u1cw.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:248
      • 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:2256
        • 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:1128
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1760 -s 1212
      2⤵
      • Program crash
      PID:1840
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1760 -ip 1760
    1⤵
      PID:1400
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4656 -ip 4656
      1⤵
        PID:4720

      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\a7e0cc19

        Filesize

        1.4MB

        MD5

        c24afe6e209df281bb32499a1e36085f

        SHA1

        43195b1c69ba8304fa96383021109a95ca64df29

        SHA256

        df613222aa6b134590f608de58e6c29df43f65b958d758755b04cf36595df647

        SHA512

        90258bd5f02334507177c77db888e23303a8a681a645c498d40ffc279e932013d876cc15813f442cfe188408036e0cc4bb4a3b26d2ef6e38d474c77a76f65192

      • C:\Users\Admin\AppData\Local\Temp\tmp59A.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmp5BC.tmp

        Filesize

        20KB

        MD5

        22be08f683bcc01d7a9799bbd2c10041

        SHA1

        2efb6041cf3d6e67970135e592569c76fc4c41de

        SHA256

        451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457

        SHA512

        0eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936

      • C:\Users\Admin\AppData\Local\Temp\u1cw.0.exe

        Filesize

        203KB

        MD5

        649d41087fb2bfc754557141ebc49d0a

        SHA1

        c12d9fd15691534b65074369d5194bb6606a4744

        SHA256

        207ec984de79d3f35980122bf7da00e4d2cfa22a30a4d8d449284537afea41f5

        SHA512

        ca01c8151536d3183b35a1c1297a8a98e1404cc0bd5c8fb2e6ce6caf97bf8c85af3219b7a2f100c27a775dfcd767e1a6901a560e404a20450988f1dee6468e1a

      • C:\Users\Admin\AppData\Local\Temp\u1cw.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u1cw.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u1cw.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u1cw.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u1cw.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u1cw.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/248-98-0x00000000728C0000-0x0000000072A3D000-memory.dmp

        Filesize

        1.5MB

      • memory/248-142-0x00000000728C0000-0x0000000072A3D000-memory.dmp

        Filesize

        1.5MB

      • memory/248-99-0x00007FFE70900000-0x00007FFE70B09000-memory.dmp

        Filesize

        2.0MB

      • memory/1128-198-0x00000000067A0000-0x0000000006CCC000-memory.dmp

        Filesize

        5.2MB

      • memory/1128-195-0x00000000056A0000-0x0000000005716000-memory.dmp

        Filesize

        472KB

      • memory/1128-193-0x0000000005BC0000-0x0000000006166000-memory.dmp

        Filesize

        5.6MB

      • memory/1128-192-0x0000000005570000-0x0000000005602000-memory.dmp

        Filesize

        584KB

      • memory/1128-200-0x00000000063C0000-0x0000000006426000-memory.dmp

        Filesize

        408KB

      • memory/1128-197-0x0000000005540000-0x000000000554A000-memory.dmp

        Filesize

        40KB

      • memory/1128-196-0x0000000005770000-0x00000000057C0000-memory.dmp

        Filesize

        320KB

      • memory/1128-199-0x00000000062F0000-0x000000000630E000-memory.dmp

        Filesize

        120KB

      • memory/1128-194-0x0000000005870000-0x0000000005A32000-memory.dmp

        Filesize

        1.8MB

      • memory/1128-191-0x0000000000D00000-0x0000000000DC6000-memory.dmp

        Filesize

        792KB

      • memory/1128-219-0x0000000007A10000-0x0000000007A1A000-memory.dmp

        Filesize

        40KB

      • memory/1128-188-0x00000000736D0000-0x00000000749E7000-memory.dmp

        Filesize

        19.1MB

      • memory/1760-106-0x0000000004860000-0x00000000048CD000-memory.dmp

        Filesize

        436KB

      • memory/1760-3-0x0000000000400000-0x0000000002B15000-memory.dmp

        Filesize

        39.1MB

      • memory/1760-107-0x0000000000400000-0x0000000002B15000-memory.dmp

        Filesize

        39.1MB

      • memory/1760-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

        Filesize

        1024KB

      • memory/1760-2-0x0000000004860000-0x00000000048CD000-memory.dmp

        Filesize

        436KB

      • memory/2256-184-0x00007FFE70900000-0x00007FFE70B09000-memory.dmp

        Filesize

        2.0MB

      • memory/2256-186-0x00000000728C0000-0x0000000072A3D000-memory.dmp

        Filesize

        1.5MB

      • memory/4656-108-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

        Filesize

        1024KB

      • memory/4656-182-0x0000000000400000-0x0000000002AF0000-memory.dmp

        Filesize

        38.9MB

      • memory/4656-109-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB