Analysis

  • max time kernel
    134s
  • max time network
    245s
  • 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 05:12

General

  • Target

    eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe

  • Size

    413KB

  • MD5

    0656946b783a6df8ff57c45846e49de1

  • SHA1

    5e5857484282f4e4d636d6558014859242b6a8f7

  • SHA256

    eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a

  • SHA512

    a409d30407773f4bb8bb087352e835765460fd3557a6570e1159b01988dd1601d15a7472958b8d41509da896ec365b7b61964413d0846763a8faff511458106d

  • SSDEEP

    12288:tUxpOKa8zz8WB4fZLtjEJNThSymzi0hMQwXFqEO:6Jzz8WUZLtjS5hHQi0TwXUt

Malware Config

Extracted

Family

vidar

Version

11

Botnet

d80be45a1eb6454ca916f92c36ebf67d

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
  • 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 1 IoCs
  • Loads dropped DLL 2 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 2 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 6 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 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe
    "C:\Users\Admin\AppData\Local\Temp\eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:424
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:4588
        • 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:5008
          • C:\ProgramData\CGIJECFIEC.exe
            "C:\ProgramData\CGIJECFIEC.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:5048
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
              • System Location Discovery: System Language Discovery
              PID:216
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FCAEBFIJKEBG" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3532
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:1264

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\CGIJECFIEC.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/216-91-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/216-89-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/216-87-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/4472-0-0x000000007375E000-0x000000007375F000-memory.dmp

        Filesize

        4KB

      • memory/4472-1-0x0000000000840000-0x00000000008A8000-memory.dmp

        Filesize

        416KB

      • memory/4472-2-0x0000000073750000-0x0000000073E3E000-memory.dmp

        Filesize

        6.9MB

      • memory/4472-12-0x0000000073750000-0x0000000073E3E000-memory.dmp

        Filesize

        6.9MB

      • memory/4472-15-0x0000000073750000-0x0000000073E3E000-memory.dmp

        Filesize

        6.9MB

      • memory/5008-42-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-41-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-26-0x0000000022120000-0x000000002237F000-memory.dmp

        Filesize

        2.4MB

      • memory/5008-25-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-67-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-68-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-75-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-76-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-24-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-5-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-9-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5008-11-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/5048-84-0x0000000000DA0000-0x0000000000E00000-memory.dmp

        Filesize

        384KB