Analysis

  • max time kernel
    108s
  • max time network
    109s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    28-04-2024 02:20

General

  • Target

    df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe

  • Size

    455KB

  • MD5

    4fe50d7ebbbbc20cd513cc300952a3c8

  • SHA1

    87d218b2066ca1511e2c6659eb2bb29f5b5255e3

  • SHA256

    df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d

  • SHA512

    78ca6e4c350b182e7c4206b5b15f72110acebc16463dc4b6a36e7271f147936fad9bc990513a11ebaf752a925b8d650e2aa389cfb5909da1cae200aff1efdb03

  • SSDEEP

    6144:wPKlSI6wvdEjpq79xyN+PKbaKNt8RUeW2s4A9YoxYrP9nys3ODE:wylSI66yj4nOaaJh9x6tT3wE

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.76

Attributes
  • url_path

    /8681490a59ad0e34.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
  • 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 9 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\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe
    "C:\Users\Admin\AppData\Local\Temp\df9bf21bdbcd5a27ad3a7d230070135ab62ae4bb4ca18efefaa58d065242bd4d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4036
    • C:\Users\Admin\AppData\Local\Temp\u344.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u344.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1412
        3⤵
        • Program crash
        PID:1552
    • C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u344.2\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:2916
      • 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:3708
        • 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:3472
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4036 -s 1568
      2⤵
      • Program crash
      PID:2360
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4036 -ip 4036
    1⤵
      PID:1576
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4628 -ip 4628
      1⤵
        PID:2260

      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\8d6fe515
        Filesize

        1.4MB

        MD5

        a45f0c2317cf8adc980229d30d489539

        SHA1

        50975365f132944b63bc973b554f80237ce4566e

        SHA256

        b79eeda3b5928fdbee2e53bfba0c0687452ef5ba924392f35e42c4af59199f3c

        SHA512

        214cf7f8d852c8715c5a45a4f592b2974834fc05f4c9be162a281bb48fa118b87ae1c0b130d2fdb6c6eb694da90eb42bc17dbd525697e95c2d07f893db44b12e

      • C:\Users\Admin\AppData\Local\Temp\tmpE810.tmp
        Filesize

        20KB

        MD5

        22be08f683bcc01d7a9799bbd2c10041

        SHA1

        2efb6041cf3d6e67970135e592569c76fc4c41de

        SHA256

        451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457

        SHA512

        0eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936

      • C:\Users\Admin\AppData\Local\Temp\u344.0.exe
        Filesize

        311KB

        MD5

        6a1950539f96cbb2cf816a413a68e07f

        SHA1

        6bff7074f3bfc7dfa00dd188ab8b620a8d986cc7

        SHA256

        aa26475eeea5b19d3d052637a9e988e0250ae16190807889fc255065687c8780

        SHA512

        be12aa463be7df2d66e6fbda1bb9eb783328b72e4b001904574d9541b9e13ad343e3e58f0febdf1196d39d69835b60a3bd475d3ed978945415f423c4fc0ef02d

      • C:\Users\Admin\AppData\Local\Temp\u344.1.zip
        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u344.2\UIxMarketPlugin.dll
        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u344.2\bunch.dat
        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u344.2\relay.dll
        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u344.2\run.exe
        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u344.2\whale.dbf
        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/2916-184-0x0000000071F70000-0x00000000720ED000-memory.dmp
        Filesize

        1.5MB

      • memory/2916-143-0x0000000071F70000-0x00000000720ED000-memory.dmp
        Filesize

        1.5MB

      • memory/2916-144-0x00007FFE38F80000-0x00007FFE39189000-memory.dmp
        Filesize

        2.0MB

      • memory/3472-203-0x0000000006180000-0x00000000061E6000-memory.dmp
        Filesize

        408KB

      • memory/3472-202-0x0000000005A00000-0x0000000005A1E000-memory.dmp
        Filesize

        120KB

      • memory/3472-201-0x0000000006620000-0x0000000006B4C000-memory.dmp
        Filesize

        5.2MB

      • memory/3472-200-0x0000000005300000-0x000000000530A000-memory.dmp
        Filesize

        40KB

      • memory/3472-199-0x0000000005510000-0x0000000005560000-memory.dmp
        Filesize

        320KB

      • memory/3472-198-0x0000000005490000-0x0000000005506000-memory.dmp
        Filesize

        472KB

      • memory/3472-195-0x00000000053F0000-0x0000000005482000-memory.dmp
        Filesize

        584KB

      • memory/3472-197-0x0000000005660000-0x0000000005822000-memory.dmp
        Filesize

        1.8MB

      • memory/3472-216-0x00000000079D0000-0x00000000079DA000-memory.dmp
        Filesize

        40KB

      • memory/3472-196-0x0000000005A40000-0x0000000005FE6000-memory.dmp
        Filesize

        5.6MB

      • memory/3472-191-0x0000000072F50000-0x0000000074267000-memory.dmp
        Filesize

        19.1MB

      • memory/3472-194-0x0000000000B80000-0x0000000000C46000-memory.dmp
        Filesize

        792KB

      • memory/3708-187-0x00007FFE38F80000-0x00007FFE39189000-memory.dmp
        Filesize

        2.0MB

      • memory/3708-189-0x0000000071F70000-0x00000000720ED000-memory.dmp
        Filesize

        1.5MB

      • memory/4036-3-0x0000000000400000-0x0000000001A3D000-memory.dmp
        Filesize

        22.2MB

      • memory/4036-156-0x0000000000400000-0x0000000001A3D000-memory.dmp
        Filesize

        22.2MB

      • memory/4036-2-0x0000000003760000-0x00000000037CD000-memory.dmp
        Filesize

        436KB

      • memory/4036-1-0x0000000001C80000-0x0000000001D80000-memory.dmp
        Filesize

        1024KB

      • memory/4628-183-0x0000000000400000-0x0000000001A19000-memory.dmp
        Filesize

        22.1MB

      • memory/4628-14-0x0000000001BB0000-0x0000000001BD7000-memory.dmp
        Filesize

        156KB

      • memory/4628-13-0x0000000001BE0000-0x0000000001CE0000-memory.dmp
        Filesize

        1024KB

      • memory/4628-15-0x0000000000400000-0x0000000001A19000-memory.dmp
        Filesize

        22.1MB

      • memory/4628-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp
        Filesize

        972KB