Analysis

  • max time kernel
    128s
  • max time network
    299s
  • platform
    windows10-1703_x64
  • resource
    win10-20240611-en
  • resource tags

    arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04-07-2024 22:39

General

  • Target

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe

  • Size

    5.5MB

  • MD5

    1ed6f9d578e14edad0bf47edf1f6269f

  • SHA1

    0e6546d7a7f237a4c094e24810fd4ab29ab6a970

  • SHA256

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3

  • SHA512

    7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60

  • SSDEEP

    98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl

Malware Config

Extracted

Family

vidar

C2

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Extracted

Family

lumma

C2

https://civilizzzationo.shop/api

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • 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
  • Program crash 1 IoCs
  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe
    "C:\Users\Admin\AppData\Local\Temp\83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:3400
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\ProgramData\GIJEGDAKEH.exe
          "C:\ProgramData\GIJEGDAKEH.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1132
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:4504
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4444
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1132 -s 292
              4⤵
              • Program crash
              PID:3228
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AEGHJKJKKJDH" & exit
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4644
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • Delays execution with timeout.exe
              PID:4652

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\GIJEGDAKEH.exe

        Filesize

        937KB

        MD5

        168c5908924803d268d26965c32a5620

        SHA1

        9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

        SHA256

        2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

        SHA512

        749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

      • memory/3776-66-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/3776-132-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/3776-87-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/3776-71-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/3776-68-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/3904-39-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-33-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-65-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-63-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-61-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-59-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-57-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-52-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-49-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-47-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-45-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-41-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-69-0x0000000073A70000-0x000000007415E000-memory.dmp

        Filesize

        6.9MB

      • memory/3904-29-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-5-0x0000000005E00000-0x0000000005E1C000-memory.dmp

        Filesize

        112KB

      • memory/3904-4-0x0000000005D20000-0x0000000005E04000-memory.dmp

        Filesize

        912KB

      • memory/3904-0-0x0000000073A7E000-0x0000000073A7F000-memory.dmp

        Filesize

        4KB

      • memory/3904-38-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-35-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-43-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-31-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-27-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-25-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-23-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-21-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-19-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-17-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-13-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-11-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-9-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-7-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-55-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-53-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-15-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-6-0x0000000005E00000-0x0000000005E15000-memory.dmp

        Filesize

        84KB

      • memory/3904-72-0x0000000073A70000-0x000000007415E000-memory.dmp

        Filesize

        6.9MB

      • memory/3904-3-0x0000000073A70000-0x000000007415E000-memory.dmp

        Filesize

        6.9MB

      • memory/3904-2-0x0000000005B80000-0x0000000005C1C000-memory.dmp

        Filesize

        624KB

      • memory/3904-1-0x0000000000D20000-0x000000000129A000-memory.dmp

        Filesize

        5.5MB