Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 12:49

General

  • Target

    ccc4f64f45422d436e3621d4a7f95cc33fbd2ef5c2e754807ddbab30904deec8.exe

  • Size

    423KB

  • MD5

    ac26e2c7bc8e54c42fcd5e4a96a3afb3

  • SHA1

    9f4602fdbd37ec6f9a35736aacf69bdfa728eed5

  • SHA256

    ccc4f64f45422d436e3621d4a7f95cc33fbd2ef5c2e754807ddbab30904deec8

  • SHA512

    03eb98eeb22c1e88986c87f63f88b610e2b142e7176ee36bc7023f01be9e6e994e2028395ea803ba5db905e356c629ab8390bebd372dfd4fd465ba0bfa919a06

  • SSDEEP

    6144:4LLIBZxDP7MoSoKdtpeK1W8ChvqkTLNfhR4hSoLSnfVF+YlkA:0LmHD7nFKdtYK3ChvhhR4hTQVHlkA

Malware Config

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 1 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 6 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\ccc4f64f45422d436e3621d4a7f95cc33fbd2ef5c2e754807ddbab30904deec8.exe
    "C:\Users\Admin\AppData\Local\Temp\ccc4f64f45422d436e3621d4a7f95cc33fbd2ef5c2e754807ddbab30904deec8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Users\Admin\AppData\Local\Temp\u18k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u18k.0.exe"
      2⤵
      • Executes dropped EXE
      PID:4652
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 1300
        3⤵
        • Program crash
        PID:4928
    • C:\Users\Admin\AppData\Local\Temp\u18k.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u18k.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:5036
      • 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:4544
        • 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:4008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 1624
      2⤵
      • Program crash
      PID:2532
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4652 -ip 4652
    1⤵
      PID:3700
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1604 -ip 1604
      1⤵
        PID:4176

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\7470a52c

        Filesize

        1.4MB

        MD5

        f37f766c540b8018f29865a493323ac6

        SHA1

        3cd7a1bf81c770909e2ce7b611fb546420aec66d

        SHA256

        09ff315e4b208178fa885d7093f26f1b8cee51e81bbe858db01fd4932bd7d6e9

        SHA512

        91cda4b3d2a0e7a8a64148ad01482aa355b1ad5259c27f7b4c068a7e8bcc69248bba564032b7fc70e138d94bcea9d398c59c3274049351fe6b485c5e0b4abe5d

      • C:\Users\Admin\AppData\Local\Temp\tmp56.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmp69.tmp

        Filesize

        20KB

        MD5

        49693267e0adbcd119f9f5e02adf3a80

        SHA1

        3ba3d7f89b8ad195ca82c92737e960e1f2b349df

        SHA256

        d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

        SHA512

        b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

      • C:\Users\Admin\AppData\Local\Temp\u18k.0.exe

        Filesize

        279KB

        MD5

        6fc5f08d8b984684ed27f804ceb77dc6

        SHA1

        dcc00fd85dc7c60f72d020c42b7b86dba5cfa4bd

        SHA256

        a44420c4a13cc7d7e307810d8c3ab86dbf91c4812e13476c84e47e5fe98f3666

        SHA512

        521475c58334cd03aa2b903060e5b78d44b1d99bbf0eac564154b933e8768f302edd4644e3613c457cd2a6cfeb563bdc5ef4bb4abeab698c7f7434442e862c5c

      • C:\Users\Admin\AppData\Local\Temp\u18k.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u18k.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u18k.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u18k.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u18k.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u18k.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/1604-3-0x0000000000400000-0x0000000002C4D000-memory.dmp

        Filesize

        40.3MB

      • memory/1604-25-0x0000000000400000-0x0000000002C4D000-memory.dmp

        Filesize

        40.3MB

      • memory/1604-2-0x0000000004A70000-0x0000000004ADD000-memory.dmp

        Filesize

        436KB

      • memory/1604-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

        Filesize

        1024KB

      • memory/1604-7-0x0000000004A70000-0x0000000004ADD000-memory.dmp

        Filesize

        436KB

      • memory/1604-4-0x0000000000400000-0x0000000002C4D000-memory.dmp

        Filesize

        40.3MB

      • memory/1604-6-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

        Filesize

        1024KB

      • memory/1604-119-0x0000000000400000-0x0000000002C4D000-memory.dmp

        Filesize

        40.3MB

      • memory/4008-136-0x0000000005390000-0x0000000005934000-memory.dmp

        Filesize

        5.6MB

      • memory/4008-142-0x0000000005F70000-0x000000000649C000-memory.dmp

        Filesize

        5.2MB

      • memory/4008-165-0x00000000073B0000-0x00000000073BA000-memory.dmp

        Filesize

        40KB

      • memory/4008-164-0x0000000004F00000-0x0000000004F10000-memory.dmp

        Filesize

        64KB

      • memory/4008-163-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/4008-144-0x0000000005AB0000-0x0000000005B16000-memory.dmp

        Filesize

        408KB

      • memory/4008-143-0x00000000050B0000-0x00000000050CE000-memory.dmp

        Filesize

        120KB

      • memory/4008-137-0x0000000004F00000-0x0000000004F10000-memory.dmp

        Filesize

        64KB

      • memory/4008-141-0x0000000002800000-0x000000000280A000-memory.dmp

        Filesize

        40KB

      • memory/4008-140-0x0000000004E60000-0x0000000004EB0000-memory.dmp

        Filesize

        320KB

      • memory/4008-139-0x0000000004DE0000-0x0000000004E56000-memory.dmp

        Filesize

        472KB

      • memory/4008-130-0x00000000740E0000-0x0000000075334000-memory.dmp

        Filesize

        18.3MB

      • memory/4008-133-0x0000000000700000-0x00000000007C6000-memory.dmp

        Filesize

        792KB

      • memory/4008-134-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/4008-135-0x0000000004D20000-0x0000000004DB2000-memory.dmp

        Filesize

        584KB

      • memory/4008-138-0x00000000050E0000-0x00000000052A2000-memory.dmp

        Filesize

        1.8MB

      • memory/4544-126-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB

      • memory/4544-129-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB

      • memory/4544-127-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB

      • memory/4544-124-0x00007FFC91070000-0x00007FFC91265000-memory.dmp

        Filesize

        2.0MB

      • memory/4544-122-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB

      • memory/4652-23-0x0000000000400000-0x0000000002C28000-memory.dmp

        Filesize

        40.2MB

      • memory/4652-24-0x0000000000400000-0x0000000002C28000-memory.dmp

        Filesize

        40.2MB

      • memory/4652-22-0x0000000002EA0000-0x0000000002EC7000-memory.dmp

        Filesize

        156KB

      • memory/4652-21-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

        Filesize

        1024KB

      • memory/5036-112-0x00007FFC91070000-0x00007FFC91265000-memory.dmp

        Filesize

        2.0MB

      • memory/5036-120-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB

      • memory/5036-111-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB

      • memory/5036-118-0x0000000073410000-0x000000007358B000-memory.dmp

        Filesize

        1.5MB