Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 16:00

General

  • Target

    149bb20dbeaa6747d1db7148bd71cedfbf855f3c4244672ac986ca7ba1fddc0c.exe

  • Size

    347KB

  • MD5

    007e2670eece44385190a9de5c745b44

  • SHA1

    e2e84f04962e102f3836feea28f110599875da3b

  • SHA256

    149bb20dbeaa6747d1db7148bd71cedfbf855f3c4244672ac986ca7ba1fddc0c

  • SHA512

    1b9ec54a45f05efc14e49900d2db7aafd14001d30fb9258c303d0ab90284a7b565363b0df910e5041e43322a67f5cdd1b91a9424f8aecb69c1e0d819e0483a79

  • SSDEEP

    6144:b4ZQNIo0QKjHUGwo2ve4u5b85/k1sZtl8OguSDU4pt3hdno:boQNUQ+HUGj2v4981MsXl87uSDU4pe

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 10 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\149bb20dbeaa6747d1db7148bd71cedfbf855f3c4244672ac986ca7ba1fddc0c.exe
    "C:\Users\Admin\AppData\Local\Temp\149bb20dbeaa6747d1db7148bd71cedfbf855f3c4244672ac986ca7ba1fddc0c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\u3wo.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3wo.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4948
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 2368
        3⤵
        • Program crash
        PID:448
    • C:\Users\Admin\AppData\Local\Temp\u3wo.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u3wo.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:3680
      • 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:1224
        • 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:1776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 1548
      2⤵
      • Program crash
      PID:4576
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5064 -ip 5064
    1⤵
      PID:3476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4948 -ip 4948
      1⤵
        PID:4340

      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\cdade9d0

        Filesize

        1.4MB

        MD5

        e75613209f918f6c9168e1e4fa5c8383

        SHA1

        bb81be04e9398f6c5b944890ad4cf6de323d0aef

        SHA256

        e7de48f819e1c645c4f8912f3f2687c9dac59fc67dbebcbe198019c9d92820d7

        SHA512

        6cd349869c0675a99a5eadc831559057c2c7174fac1b6fc62264763276f724741aa0fd210b91cd43ecaa48c21b697b186b38a47cd32e86c5c6111986de392b73

      • C:\Users\Admin\AppData\Local\Temp\tmpF945.tmp

        Filesize

        20KB

        MD5

        a603e09d617fea7517059b4924b1df93

        SHA1

        31d66e1496e0229c6a312f8be05da3f813b3fa9e

        SHA256

        ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7

        SHA512

        eadb844a84f8a660c578a2f8e65ebcb9e0b9ab67422be957f35492ff870825a4b363f96fd1c546eaacfd518f6812fcf57268ef03c149e5b1a7af145c7100e2cc

      • C:\Users\Admin\AppData\Local\Temp\tmpF968.tmp

        Filesize

        20KB

        MD5

        49693267e0adbcd119f9f5e02adf3a80

        SHA1

        3ba3d7f89b8ad195ca82c92737e960e1f2b349df

        SHA256

        d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

        SHA512

        b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

      • C:\Users\Admin\AppData\Local\Temp\u3wo.0.exe

        Filesize

        203KB

        MD5

        a58d66c34e15c6dbd6731a57789311c9

        SHA1

        45c4136d75823e849b24aceadbf59c1230cf5fe9

        SHA256

        747db7a215158728cf7840622e0b95146ead839b57b9c38e72dfce7dedb27e5d

        SHA512

        f15daf75866270127768a2cbc61b75e4466b221081e4473db5ad55b0ca3918a46a50dc29d00a1bd5cab33cdf5341c8947d145380fc29f4cbd1c19b03d224daf0

      • C:\Users\Admin\AppData\Local\Temp\u3wo.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u3wo.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u3wo.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u3wo.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u3wo.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u3wo.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/1224-150-0x00007FFEC69F0000-0x00007FFEC6BE5000-memory.dmp

        Filesize

        2.0MB

      • memory/1224-193-0x0000000072DD0000-0x0000000072F4B000-memory.dmp

        Filesize

        1.5MB

      • memory/1776-204-0x0000000005A10000-0x0000000005A1A000-memory.dmp

        Filesize

        40KB

      • memory/1776-226-0x0000000008030000-0x000000000803A000-memory.dmp

        Filesize

        40KB

      • memory/1776-195-0x00000000717E0000-0x0000000072A34000-memory.dmp

        Filesize

        18.3MB

      • memory/1776-198-0x0000000001300000-0x00000000013C6000-memory.dmp

        Filesize

        792KB

      • memory/1776-199-0x0000000005970000-0x0000000005A02000-memory.dmp

        Filesize

        584KB

      • memory/1776-200-0x0000000006070000-0x0000000006614000-memory.dmp

        Filesize

        5.6MB

      • memory/1776-207-0x0000000006800000-0x0000000006866000-memory.dmp

        Filesize

        408KB

      • memory/1776-206-0x0000000006720000-0x000000000673E000-memory.dmp

        Filesize

        120KB

      • memory/1776-205-0x0000000006C50000-0x000000000717C000-memory.dmp

        Filesize

        5.2MB

      • memory/1776-201-0x0000000005DC0000-0x0000000005F82000-memory.dmp

        Filesize

        1.8MB

      • memory/1776-202-0x0000000005AC0000-0x0000000005B36000-memory.dmp

        Filesize

        472KB

      • memory/1776-203-0x0000000005B40000-0x0000000005B90000-memory.dmp

        Filesize

        320KB

      • memory/3680-107-0x0000000072DD0000-0x0000000072F4B000-memory.dmp

        Filesize

        1.5MB

      • memory/3680-99-0x0000000072DD0000-0x0000000072F4B000-memory.dmp

        Filesize

        1.5MB

      • memory/3680-100-0x00007FFEC69F0000-0x00007FFEC6BE5000-memory.dmp

        Filesize

        2.0MB

      • memory/4948-186-0x0000000000400000-0x0000000002AF0000-memory.dmp

        Filesize

        38.9MB

      • memory/4948-192-0x0000000000400000-0x0000000002AF0000-memory.dmp

        Filesize

        38.9MB

      • memory/4948-110-0x0000000002D60000-0x0000000002E60000-memory.dmp

        Filesize

        1024KB

      • memory/4948-111-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/5064-3-0x0000000000400000-0x0000000002B15000-memory.dmp

        Filesize

        39.1MB

      • memory/5064-106-0x0000000000400000-0x0000000002B15000-memory.dmp

        Filesize

        39.1MB

      • memory/5064-13-0x0000000000400000-0x0000000002B15000-memory.dmp

        Filesize

        39.1MB

      • memory/5064-2-0x0000000004740000-0x00000000047AD000-memory.dmp

        Filesize

        436KB

      • memory/5064-1-0x0000000002B60000-0x0000000002C60000-memory.dmp

        Filesize

        1024KB