Analysis

  • max time kernel
    116s
  • max time network
    120s
  • 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 19:37

General

  • Target

    35ca9546e5e3978eb88d48a3707f8b8f706ca9ad92a8354d5e3d16f1c093aa0e.exe

  • Size

    397KB

  • MD5

    babc6bbd13831623f74a1418d056d97a

  • SHA1

    87e27fd9910c7e7be142c5802a8fdb9c8249ecf4

  • SHA256

    35ca9546e5e3978eb88d48a3707f8b8f706ca9ad92a8354d5e3d16f1c093aa0e

  • SHA512

    0e48ba352f2419c01b6fb96a9eebd19adaaedbba35c5d2bb7ba90f34fccc9866006315000f381c7a25304687a6a8d035b0a4b7aeca53bc68509bc050abc3135f

  • SSDEEP

    6144:446BCHI5Wdd6OcSXBVBQrUHwGuJWOb+VOpMfwuUod:b6BwzmOcWBVurURuJWEMYPM

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\35ca9546e5e3978eb88d48a3707f8b8f706ca9ad92a8354d5e3d16f1c093aa0e.exe
    "C:\Users\Admin\AppData\Local\Temp\35ca9546e5e3978eb88d48a3707f8b8f706ca9ad92a8354d5e3d16f1c093aa0e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Users\Admin\AppData\Local\Temp\u1yk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1yk.0.exe"
      2⤵
      • Executes dropped EXE
      PID:4884
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 1140
        3⤵
        • Program crash
        PID:4932
    • C:\Users\Admin\AppData\Local\Temp\u1yk.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u1yk.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:396
      • 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:4772
        • 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:448
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 1596
      2⤵
      • Program crash
      PID:1844
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4884 -ip 4884
    1⤵
      PID:4248
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 2540 -ip 2540
      1⤵
        PID:892

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\cdd677fa

        Filesize

        1.4MB

        MD5

        ce23a7828f0d1cc163c85dfdf66715ad

        SHA1

        17f71e2eccef082b874d9001ce69733e56334f35

        SHA256

        951301a1d2280506f43779f0df8a8cd8d7ef0e67be1e9feab68f375a751128c9

        SHA512

        f09332032965b6078611fe2cb5442102232ed6ff7b8256b675f46ed1e5a41967c0e38d6600c483b6fc19418e45b78018559adcbeeb7985461762045e008c56c8

      • C:\Users\Admin\AppData\Local\Temp\tmp2160.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmp2173.tmp

        Filesize

        20KB

        MD5

        22be08f683bcc01d7a9799bbd2c10041

        SHA1

        2efb6041cf3d6e67970135e592569c76fc4c41de

        SHA256

        451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457

        SHA512

        0eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936

      • C:\Users\Admin\AppData\Local\Temp\u1yk.0.exe

        Filesize

        252KB

        MD5

        a994e5dcde07fbf1729262051f89e537

        SHA1

        e74e06fbf5c3598450033b0bb5a95eea1cd72390

        SHA256

        40b6b4036efac57c7239962d873c485c4484baf8da34f3618019e4e470dbebc4

        SHA512

        310210d6096566fc80ef8d1690e02dfc28a2a4d0b42e532c257ac371b2be60721b917bcaef6ad7b660572e0ac90b02ab9f9015543124f248b197b302fbc58d35

      • C:\Users\Admin\AppData\Local\Temp\u1yk.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u1yk.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u1yk.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u1yk.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u1yk.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u1yk.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/396-104-0x00007FF9D3620000-0x00007FF9D3829000-memory.dmp

        Filesize

        2.0MB

      • memory/396-111-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/396-113-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/396-102-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/448-129-0x0000000005930000-0x0000000005ED6000-memory.dmp

        Filesize

        5.6MB

      • memory/448-135-0x0000000006510000-0x0000000006A3C000-memory.dmp

        Filesize

        5.2MB

      • memory/448-157-0x00000000054A0000-0x00000000054B0000-memory.dmp

        Filesize

        64KB

      • memory/448-156-0x0000000073A80000-0x0000000074231000-memory.dmp

        Filesize

        7.7MB

      • memory/448-137-0x00000000060E0000-0x0000000006146000-memory.dmp

        Filesize

        408KB

      • memory/448-136-0x0000000006010000-0x000000000602E000-memory.dmp

        Filesize

        120KB

      • memory/448-134-0x0000000005300000-0x000000000530A000-memory.dmp

        Filesize

        40KB

      • memory/448-133-0x0000000005400000-0x0000000005450000-memory.dmp

        Filesize

        320KB

      • memory/448-132-0x0000000005380000-0x00000000053F6000-memory.dmp

        Filesize

        472KB

      • memory/448-131-0x0000000005680000-0x0000000005842000-memory.dmp

        Filesize

        1.8MB

      • memory/448-130-0x00000000054A0000-0x00000000054B0000-memory.dmp

        Filesize

        64KB

      • memory/448-128-0x0000000005240000-0x00000000052D2000-memory.dmp

        Filesize

        584KB

      • memory/448-122-0x0000000070E00000-0x0000000072117000-memory.dmp

        Filesize

        19.1MB

      • memory/448-126-0x0000000000C20000-0x0000000000CE6000-memory.dmp

        Filesize

        792KB

      • memory/448-127-0x0000000073A80000-0x0000000074231000-memory.dmp

        Filesize

        7.7MB

      • memory/2540-103-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/2540-1-0x0000000002E90000-0x0000000002F90000-memory.dmp

        Filesize

        1024KB

      • memory/2540-2-0x0000000003310000-0x000000000337D000-memory.dmp

        Filesize

        436KB

      • memory/2540-3-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/2540-112-0x0000000003310000-0x000000000337D000-memory.dmp

        Filesize

        436KB

      • memory/4772-119-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/4772-115-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/4772-117-0x00007FF9D3620000-0x00007FF9D3829000-memory.dmp

        Filesize

        2.0MB

      • memory/4772-123-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/4772-120-0x0000000072120000-0x000000007229D000-memory.dmp

        Filesize

        1.5MB

      • memory/4884-13-0x0000000002E50000-0x0000000002F50000-memory.dmp

        Filesize

        1024KB

      • memory/4884-14-0x0000000002E20000-0x0000000002E47000-memory.dmp

        Filesize

        156KB

      • memory/4884-15-0x0000000000400000-0x0000000002C22000-memory.dmp

        Filesize

        40.1MB

      • memory/4884-16-0x0000000000400000-0x0000000002C22000-memory.dmp

        Filesize

        40.1MB