Analysis

  • max time kernel
    204s
  • max time network
    287s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-09-2024 05:03

General

  • Target

    43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94.exe

  • Size

    216KB

  • MD5

    242293154c0caabd9953b0b1804926a7

  • SHA1

    8fabbf702ded34e84da34ec5d9255a23fef63939

  • SHA256

    43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94

  • SHA512

    d3cd5c5d56f17ae088d315de8d2cba8eaa3cd6d8f6b38368c28c9c6cf98532992dc35192ad99f9823e2eb0a3e5c3bd0c266c27bed54352d81c6190165d7ade7d

  • SSDEEP

    6144:U/ipLSItOvhdzG9NznVfi6DN567zTMMEO:8iBS0On+V7DN567n7EO

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family

vidar

Version

11

Botnet

3a15237aa92dcd8ccca447211fb5fc2a

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

  • Detect Vidar Stealer 11 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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 4 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94.exe
    "C:\Users\Admin\AppData\Local\Temp\43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1844
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminKFCFBAAEHC.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2612
        • C:\Users\AdminKFCFBAAEHC.exe
          "C:\Users\AdminKFCFBAAEHC.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3436
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1264
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminDHJKJKKKJJ.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:832
        • C:\Users\AdminDHJKJKKKJJ.exe
          "C:\Users\AdminDHJKJKKKJJ.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3432
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2160
            • C:\ProgramData\EBAFHCBFHD.exe
              "C:\ProgramData\EBAFHCBFHD.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2540
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:2064
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DBKEHDGDGHCB" & exit
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4664
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\DBKEHDGDGHCB\CBKFBA

    Filesize

    92KB

    MD5

    55d8864e58f075cbe2dbd43a1b2908a9

    SHA1

    0d7129d95fa2ddb7fde828b22441dc53dffc5594

    SHA256

    e4e07f45a83a87aff5e7f99528464abaad495499e9e2e3e0fcd5897819f88581

    SHA512

    89ce123d2685448826f76dce25292b2d2d525efd8b78fd9235d1e357ad7ae2d4b3461ef903e2994cd2b8e28f56b0cc50137dd90accdd3f281472e488f6c7cf2e

  • C:\ProgramData\DBKEHDGDGHCB\FHCBGI

    Filesize

    6KB

    MD5

    73a2c8faf643e09878f3ceb733e8c185

    SHA1

    3ef220f2683e72cf34017781cdcaf57389f7640b

    SHA256

    0e2039b0aebe68e1650b53a36d87bc94dc5cd72121756e0ece98783076f65ab2

    SHA512

    9b9eaf59a1e30a53faa20d3178216b7f53f8c42a8ced0cde18d75050bac25ff52dbb492331d04ff56e35aa6679522139cf573f047eec09c83e7e58fc098546a1

  • C:\ProgramData\freebl3.dll

    Filesize

    669KB

    MD5

    550686c0ee48c386dfcb40199bd076ac

    SHA1

    ee5134da4d3efcb466081fb6197be5e12a5b22ab

    SHA256

    edd043f2005dbd5902fc421eabb9472a7266950c5cbaca34e2d590b17d12f5fa

    SHA512

    0b7f47af883b99f9fbdc08020446b58f2f3fa55292fd9bc78fc967dd35bdd8bd549802722de37668cc89ede61b20359190efbfdf026ae2bdc854f4740a54649e

  • C:\ProgramData\msvcp140.dll

    Filesize

    439KB

    MD5

    5ff1fca37c466d6723ec67be93b51442

    SHA1

    34cc4e158092083b13d67d6d2bc9e57b798a303b

    SHA256

    5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062

    SHA512

    4802ef62630c521d83a1d333969593fb00c9b38f82b4d07f70fbd21f495fea9b3f67676064573d2c71c42bc6f701992989742213501b16087bb6110e337c7546

  • C:\ProgramData\softokn3.dll

    Filesize

    251KB

    MD5

    4e52d739c324db8225bd9ab2695f262f

    SHA1

    71c3da43dc5a0d2a1941e874a6d015a071783889

    SHA256

    74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a

    SHA512

    2d4168a69082a9192b9248f7331bd806c260478ff817567df54f997d7c3c7d640776131355401e4bdb9744e246c36d658cb24b18de67d8f23f10066e5fe445f6

  • C:\ProgramData\vcruntime140.dll

    Filesize

    78KB

    MD5

    a37ee36b536409056a86f50e67777dd7

    SHA1

    1cafa159292aa736fc595fc04e16325b27cd6750

    SHA256

    8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825

    SHA512

    3a7c260646315cf8c01f44b2ec60974017496bd0d80dd055c7e43b707cadba2d63aab5e0efd435670aa77886ed86368390d42c4017fc433c3c4b9d1c47d0f356

  • C:\Users\AdminDHJKJKKKJJ.exe

    Filesize

    413KB

    MD5

    76b81bbaa929e92a0885267869e62fdf

    SHA1

    16ee3b53fd9d0fe6bd7fc75ac961a21bfd9fae51

    SHA256

    f59f82ea9cbaa95389bbec5f80b427daa2e575c2827eaaede006590810809f9c

    SHA512

    67d4fb8ed2c767871a307c54fddc86fa4df07ccfa943eeb61e6e8960c4038fb8a38118a69cbb7a6364dde6c11fd3139b8c5f91e029a437dad0d39202383ac3cd

  • C:\Users\AdminKFCFBAAEHC.exe

    Filesize

    381KB

    MD5

    f5a1956973dce107d4c0b6267ce88870

    SHA1

    79a19513d7c9cff939f2881c4172a05dbaef735b

    SHA256

    7b794c5bdb820791f0359da90a9a4f258412b8feef9c6e6a0411f6aead9d3a04

    SHA512

    f42180c75c0ae8dc083c6fff98a66c0d875fadb400d7945816ea330a54777632a3a7752d3e78b90e45f58ed3d04d6708b1dcea51d82711356e6d14e405a7c579

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/320-81-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/320-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/320-7-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/320-9-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/320-4-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/320-97-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/1264-91-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1264-88-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1264-93-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1844-10-0x00000000738A0000-0x0000000073F8E000-memory.dmp

    Filesize

    6.9MB

  • memory/1844-0-0x00000000738AE000-0x00000000738AF000-memory.dmp

    Filesize

    4KB

  • memory/1844-8-0x00000000738A0000-0x0000000073F8E000-memory.dmp

    Filesize

    6.9MB

  • memory/1844-2-0x00000000738A0000-0x0000000073F8E000-memory.dmp

    Filesize

    6.9MB

  • memory/1844-1-0x0000000000C80000-0x0000000000CB8000-memory.dmp

    Filesize

    224KB

  • memory/2160-102-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-167-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-118-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-119-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-120-0x0000000020110000-0x000000002036F000-memory.dmp

    Filesize

    2.4MB

  • memory/2160-134-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-106-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-135-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-175-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-174-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-104-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2160-166-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3432-99-0x0000000000A70000-0x0000000000AD8000-memory.dmp

    Filesize

    416KB

  • memory/3436-80-0x0000000000EC0000-0x0000000000F20000-memory.dmp

    Filesize

    384KB

  • memory/3436-82-0x0000000072570000-0x0000000072C5E000-memory.dmp

    Filesize

    6.9MB

  • memory/3436-79-0x000000007257E000-0x000000007257F000-memory.dmp

    Filesize

    4KB

  • memory/3436-94-0x0000000072570000-0x0000000072C5E000-memory.dmp

    Filesize

    6.9MB