Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-04-2024 16:08

General

  • Target

    ab67d5dcf0959eb53cde8b4387b18ff89058868197793ac3c01f3eff5fa03349.exe

  • Size

    396KB

  • MD5

    e305d23a64674aaf3f27d1c708a5f2cd

  • SHA1

    0c6fe3bde396790cbfb6efaa0e7b813d000e1393

  • SHA256

    ab67d5dcf0959eb53cde8b4387b18ff89058868197793ac3c01f3eff5fa03349

  • SHA512

    65e5987329a6a396b433c5c2e206331ef862a26f575ab7d1034597442cc58fda9f685034173f0859f8ee327724a7806f6da37a46b9325ba257625964f4fe9be7

  • SSDEEP

    6144:4iKdFPyXpDopFPAWs9Q9NEZRXW4XU3XRkocJoH8YOi8HLo:lj5DqWQ9qZZWCeRTlcYOT8

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
  • 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab67d5dcf0959eb53cde8b4387b18ff89058868197793ac3c01f3eff5fa03349.exe
    "C:\Users\Admin\AppData\Local\Temp\ab67d5dcf0959eb53cde8b4387b18ff89058868197793ac3c01f3eff5fa03349.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Users\Admin\AppData\Local\Temp\u15k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u15k.0.exe"
      2⤵
      • Executes dropped EXE
      PID:4976
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4976 -s 1144
        3⤵
        • Program crash
        PID:2392
    • C:\Users\Admin\AppData\Local\Temp\u15k.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u15k.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:872
      • 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:3336
        • 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:4380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 1156
      2⤵
      • Program crash
      PID:1296
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4976 -ip 4976
    1⤵
      PID:3892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1496 -ip 1496
      1⤵
        PID:1240

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\248e605a

        Filesize

        1.4MB

        MD5

        ead905bfb6112dd030eb90b88a3621aa

        SHA1

        2621f3d06ad5dd7b1bf7d2097b1056fe56519fd2

        SHA256

        6c5cdabcb850519ee15a38b3021c4f351a28c1bc71a0db547627dfbc0fb52244

        SHA512

        6e8a7da17c0f02844bd82e94dbed32598b5dd3891edace0302bbbef35d4b49e38ca36f5129add6a6e2ab7a9c4d6d678ae2cd531b85d1349dbbce147a57374b5b

      • C:\Users\Admin\AppData\Local\Temp\u15k.0.exe

        Filesize

        252KB

        MD5

        88de52b222926b015efb92807e9647dd

        SHA1

        9e5cb25b1cc83af849c36323647bfd8c61a6cf7e

        SHA256

        500108938de2903971a37f9d669dc1bf1a520317e3d68bd36003cd9346894ce2

        SHA512

        47aff6cb14a8cbde3eb972160aa6a0f5bb7f5a7f03445cd2f6d66d4759f1b9b0b5755275e68770693e5d1fbdb339962dbff8bdcef47049ee2198349becf129e3

      • C:\Users\Admin\AppData\Local\Temp\u15k.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u15k.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u15k.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u15k.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u15k.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u15k.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/872-114-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/872-113-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/872-106-0x00007FFEC0280000-0x00007FFEC0489000-memory.dmp

        Filesize

        2.0MB

      • memory/872-105-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/1496-19-0x00000000031F0000-0x000000000325D000-memory.dmp

        Filesize

        436KB

      • memory/1496-112-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/1496-18-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

        Filesize

        1024KB

      • memory/1496-17-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/1496-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

        Filesize

        1024KB

      • memory/1496-2-0x00000000031F0000-0x000000000325D000-memory.dmp

        Filesize

        436KB

      • memory/1496-3-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/3336-120-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/3336-118-0x00007FFEC0280000-0x00007FFEC0489000-memory.dmp

        Filesize

        2.0MB

      • memory/3336-124-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/3336-116-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/3336-121-0x00000000723C0000-0x000000007253D000-memory.dmp

        Filesize

        1.5MB

      • memory/4380-133-0x0000000005580000-0x00000000055F6000-memory.dmp

        Filesize

        472KB

      • memory/4380-129-0x00000000053A0000-0x0000000005432000-memory.dmp

        Filesize

        584KB

      • memory/4380-137-0x0000000005570000-0x0000000005580000-memory.dmp

        Filesize

        64KB

      • memory/4380-136-0x0000000072A00000-0x00000000731B1000-memory.dmp

        Filesize

        7.7MB

      • memory/4380-123-0x00000000732D0000-0x00000000745E7000-memory.dmp

        Filesize

        19.1MB

      • memory/4380-127-0x0000000000C30000-0x0000000000CF6000-memory.dmp

        Filesize

        792KB

      • memory/4380-128-0x0000000072A00000-0x00000000731B1000-memory.dmp

        Filesize

        7.7MB

      • memory/4380-135-0x0000000005450000-0x000000000545A000-memory.dmp

        Filesize

        40KB

      • memory/4380-130-0x0000000005A50000-0x0000000005FF6000-memory.dmp

        Filesize

        5.6MB

      • memory/4380-131-0x0000000005570000-0x0000000005580000-memory.dmp

        Filesize

        64KB

      • memory/4380-132-0x0000000005750000-0x0000000005912000-memory.dmp

        Filesize

        1.8MB

      • memory/4380-134-0x00000000054C0000-0x0000000005510000-memory.dmp

        Filesize

        320KB

      • memory/4976-14-0x0000000002D80000-0x0000000002DA7000-memory.dmp

        Filesize

        156KB

      • memory/4976-16-0x0000000000400000-0x0000000002C22000-memory.dmp

        Filesize

        40.1MB

      • memory/4976-13-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

        Filesize

        1024KB

      • memory/4976-15-0x0000000000400000-0x0000000002C22000-memory.dmp

        Filesize

        40.1MB