Analysis

  • max time kernel
    19s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    22/07/2024, 02:45

General

  • Target
    29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b.exe
  • Size 5.3MB
  • Sample240722-c8qq2avfpd
  • SHA256 29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 10.5

Botnet
  • b607a7a47e1a6ff266af835d50c6eaa5

C2
  • https://t.me/s41l0

  • https://steamcommunity.com/profiles/76561199743486170

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.0 Safari/537.36

Signatures

  • Detect Vidar Stealer 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 3 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b.exe
    "C:\Users\Admin\AppData\Local\Temp\29b828a2d4a02f4c3508e27714ceccea4e2d117dc0466671d334a6debd7a077b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:3016
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
          PID:2848
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          2⤵
          • Loads dropped DLL
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2136
          • C:\ProgramData\FCFBAKJDBK.exe
            "C:\ProgramData\FCFBAKJDBK.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:592
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
              4⤵
                PID:1660
            • C:\ProgramData\HCAEGCBFHJ.exe
              "C:\ProgramData\HCAEGCBFHJ.exe"
              3⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:656
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
                4⤵
                  PID:2752
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DAEGIIECGHCB" & exit
                3⤵
                  PID:620
                  • C:\Windows\SysWOW64\timeout.exe
                    timeout /t 10
                    4⤵
                    • Delays execution with timeout.exe
                    PID:840

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                  • Size 471B
                  • SHA256 6d3f9111a7e76654ce2ae6ee15fd1d923a8d96901a5489cf53811f6ddc733b30
                  • MD5 SHA1 SHA512

                  94308059B57B3142E455B38A6EB92015

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                  • Size 342B
                  • SHA256 5510593d3313cc3fb70b27884dbd1b76cc1fca9fea84c7c8eaf20b84f175e552
                  • MD5 SHA1 SHA512

                  94308059B57B3142E455B38A6EB92015

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                  • Size 342B
                  • SHA256 3432250e3a298f54ebc206166401704081c2784cfc571ea99c19e934e5aac362
                  • MD5 SHA1 SHA512

                  EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                  • Size 400B
                  • SHA256 da4641df21d35311a2806b2921f13aeb7ac237332f5ab94bb786556719f6db35
                  • MD5 SHA1 SHA512

                  76561199743486170[1].htm

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WNZH54VQ\76561199743486170[1].htm
                  • Size 34KB
                  • SHA256 78cddba0de4b327a34e5ab9954f42250ee6184b9b7e84c7801aef0f043c0b66a
                  • MD5 SHA1 SHA512 SSDEEP

                  CabEEF3.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\CabEEF3.tmp
                  • Size 70KB
                  • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
                  • MD5 SHA1 SHA512 SSDEEP

                  TarEF15.tmp

                  • Path C:\Users\Admin\AppData\Local\Temp\TarEF15.tmp
                  • Size 181KB
                  • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
                  • MD5 SHA1 SHA512 SSDEEP

                  FCFBAKJDBK.exe

                  • Path \ProgramData\FCFBAKJDBK.exe
                  • Size 4.3MB
                  • SHA256 394f23df8704f763b90149b09c73a1a841e8590541d33b98a6c7412ff9bfa27c
                  • MD5 SHA1 SHA512 SSDEEP

                  HCAEGCBFHJ.exe

                  • Path \ProgramData\HCAEGCBFHJ.exe
                  • Size 4.3MB
                  • SHA256 c23b4a05be1b5587fe7d4283c7a99e44b695f486db8f225f5eabf9d7df75f37a
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/592-479-0x0000000005610000-0x0000000005744000-memory.dmp

                  memory/592-478-0x00000000050F0000-0x0000000005238000-memory.dmp

                  memory/592-467-0x0000000000AA0000-0x0000000000EEC000-memory.dmp

                  memory/656-587-0x0000000000A90000-0x0000000000EF0000-memory.dmp

                  memory/656-589-0x0000000005440000-0x000000000555A000-memory.dmp

                  memory/656-588-0x0000000004B60000-0x0000000004C8E000-memory.dmp

                  memory/1848-48-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-5-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-42-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-40-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-38-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-36-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-34-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-32-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-30-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-28-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-26-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-24-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-22-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-20-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-18-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-16-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-14-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-12-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-10-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-8-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-6-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-44-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-1-0x0000000000880000-0x0000000000DCC000-memory.dmp

                  memory/1848-2-0x0000000005850000-0x00000000059DA000-memory.dmp

                  memory/1848-3-0x0000000074C10000-0x00000000752FE000-memory.dmp

                  memory/1848-79-0x0000000074C10000-0x00000000752FE000-memory.dmp

                  memory/1848-46-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

                  memory/1848-50-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-52-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-65-0x0000000074C10000-0x00000000752FE000-memory.dmp

                  memory/1848-54-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-56-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-58-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-60-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-62-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-64-0x0000000000570000-0x0000000000585000-memory.dmp

                  memory/1848-4-0x0000000000570000-0x000000000058C000-memory.dmp

                  memory/2136-68-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2136-70-0x0000000000400000-0x0000000000640000-memory.dmp

                  memory/2136-67-0x0000000000400000-0x0000000000640000-memory.dmp