Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 09:15

General

  • Target

    ae73eb4cbe39e4a9e28a367331329a12.exe

  • Size

    442KB

  • MD5

    ae73eb4cbe39e4a9e28a367331329a12

  • SHA1

    fa827d6b4f9c94dd137fc24b201259a4c8293913

  • SHA256

    5f302f2c568cfc3bef4f7690b84d15dd58caace21a60f76d807e909ff8f81e5e

  • SHA512

    b8b28158002cdd797cfe9050d93ba7d3122ac9a6e308d60c13027546bcfde0fa17df38e980016c6bb91fec62b2b6a9acfc55b58a5983e2beab248aac469a9500

  • SSDEEP

    6144:Ovlp7/pMTkjSJX3KkOyhJOF1zL1vMVi0jYZF3Z0DKh8n/QrT:Ovlp7/KQOJnHsLhUKh8n/QrT

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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 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\ae73eb4cbe39e4a9e28a367331329a12.exe
    "C:\Users\Admin\AppData\Local\Temp\ae73eb4cbe39e4a9e28a367331329a12.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Users\Admin\AppData\Local\Temp\u3oo.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3oo.0.exe"
      2⤵
      • Executes dropped EXE
      PID:4552
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4552 -s 1160
        3⤵
        • Program crash
        PID:1576
    • C:\Users\Admin\AppData\Local\Temp\u3oo.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u3oo.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:1852
      • 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:2832
        • 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:2460
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4552 -ip 4552
    1⤵
      PID:2904

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\126d2b77

      Filesize

      1.4MB

      MD5

      d9a48f9636fe9b11ecacc36e34eed050

      SHA1

      cbd63fcc77c3503b958a247aefc0d9e33ce8bd4e

      SHA256

      35186587f06ed2ed7ff6452b82b903877cf71afa5822a924b2eada889b9af65b

      SHA512

      4f24f498bcefda7b30bf5829bcd270e6f060f819972c3829a8f9ce14a9c38bf66d8fda0299b68a84e8fe50c87d7a63a2d550fb578bb9b22517ac98280dce1c3b

    • C:\Users\Admin\AppData\Local\Temp\u3oo.0.exe

      Filesize

      298KB

      MD5

      80e0fece33768e20034d106db0d36341

      SHA1

      ba12ccea1e640cdb5fedb0e9ac03aad09bdc9510

      SHA256

      8a6721d38d828ce4dbbef786174faf854f366b0bf6f07189033aafa53459a14e

      SHA512

      1292b73f6e0673a118ad726ab14dbcbbbe9d1245cac978e5752838b51cccabd4a286397faf7de27b98cd9ab88ea04fb46aa02ec3287d641b3056593f69606e7f

    • C:\Users\Admin\AppData\Local\Temp\u3oo.1.zip

      Filesize

      3.7MB

      MD5

      78d3ca6355c93c72b494bb6a498bf639

      SHA1

      2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

      SHA256

      a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

      SHA512

      1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

    • C:\Users\Admin\AppData\Local\Temp\u3oo.2\UIxMarketPlugin.dll

      Filesize

      1.6MB

      MD5

      d1ba9412e78bfc98074c5d724a1a87d6

      SHA1

      0572f98d78fb0b366b5a086c2a74cc68b771d368

      SHA256

      cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

      SHA512

      8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

    • C:\Users\Admin\AppData\Local\Temp\u3oo.2\bunch.dat

      Filesize

      1.3MB

      MD5

      1e8237d3028ab52821d69099e0954f97

      SHA1

      30a6ae353adda0c471c6ed5b7a2458b07185abf2

      SHA256

      9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

      SHA512

      a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

    • C:\Users\Admin\AppData\Local\Temp\u3oo.2\relay.dll

      Filesize

      1.5MB

      MD5

      10d51becd0bbce0fab147ff9658c565e

      SHA1

      4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

      SHA256

      7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

      SHA512

      29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

    • C:\Users\Admin\AppData\Local\Temp\u3oo.2\run.exe

      Filesize

      2.4MB

      MD5

      9fb4770ced09aae3b437c1c6eb6d7334

      SHA1

      fe54b31b0db8665aa5b22bed147e8295afc88a03

      SHA256

      a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

      SHA512

      140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

    • C:\Users\Admin\AppData\Local\Temp\u3oo.2\whale.dbf

      Filesize

      85KB

      MD5

      a723bf46048e0bfb15b8d77d7a648c3e

      SHA1

      8952d3c34e9341e4425571e10f22b782695bb915

      SHA256

      b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

      SHA512

      ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

    • memory/1852-101-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/1852-112-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/1852-108-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/1852-102-0x00007FF8D0A50000-0x00007FF8D0C45000-memory.dmp

      Filesize

      2.0MB

    • memory/2460-129-0x00000000734E0000-0x0000000073C90000-memory.dmp

      Filesize

      7.7MB

    • memory/2460-124-0x0000000071B10000-0x0000000072D64000-memory.dmp

      Filesize

      18.3MB

    • memory/2460-139-0x0000000005D60000-0x0000000005D70000-memory.dmp

      Filesize

      64KB

    • memory/2460-138-0x00000000734E0000-0x0000000073C90000-memory.dmp

      Filesize

      7.7MB

    • memory/2460-135-0x0000000005C00000-0x0000000005C50000-memory.dmp

      Filesize

      320KB

    • memory/2460-134-0x0000000005B80000-0x0000000005BF6000-memory.dmp

      Filesize

      472KB

    • memory/2460-133-0x0000000005D70000-0x0000000005F32000-memory.dmp

      Filesize

      1.8MB

    • memory/2460-132-0x0000000005D60000-0x0000000005D70000-memory.dmp

      Filesize

      64KB

    • memory/2460-131-0x0000000006130000-0x00000000066D4000-memory.dmp

      Filesize

      5.6MB

    • memory/2460-130-0x0000000005AE0000-0x0000000005B72000-memory.dmp

      Filesize

      584KB

    • memory/2460-128-0x00000000013B0000-0x0000000001476000-memory.dmp

      Filesize

      792KB

    • memory/2832-123-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/2832-120-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/2832-121-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/2832-116-0x00007FF8D0A50000-0x00007FF8D0C45000-memory.dmp

      Filesize

      2.0MB

    • memory/2832-114-0x0000000073040000-0x00000000731BB000-memory.dmp

      Filesize

      1.5MB

    • memory/4552-12-0x0000000004160000-0x0000000004260000-memory.dmp

      Filesize

      1024KB

    • memory/4552-14-0x0000000000400000-0x000000000403C000-memory.dmp

      Filesize

      60.2MB

    • memory/4552-13-0x0000000005C40000-0x0000000005C67000-memory.dmp

      Filesize

      156KB

    • memory/4776-1-0x0000000004070000-0x0000000004170000-memory.dmp

      Filesize

      1024KB

    • memory/4776-111-0x0000000000400000-0x000000000405F000-memory.dmp

      Filesize

      60.4MB

    • memory/4776-109-0x0000000004070000-0x0000000004170000-memory.dmp

      Filesize

      1024KB

    • memory/4776-110-0x0000000005C80000-0x0000000005CED000-memory.dmp

      Filesize

      436KB

    • memory/4776-2-0x0000000005C80000-0x0000000005CED000-memory.dmp

      Filesize

      436KB

    • memory/4776-15-0x0000000000400000-0x000000000405F000-memory.dmp

      Filesize

      60.4MB