Analysis

  • max time kernel
    92s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2024, 21:52

General

  • Target
    file.exe
  • Size 908KB
  • Sample240708-1q2mkstala
  • SHA256 ec86bd905bd5524841fccc2c895e99d587ddeeced4ffa439d962e05e77c02e2b
  • MD5 SHA1 SHA512 SSDEEP

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

Signatures

  • Detect Vidar Stealer 18 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 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.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3404
      • C:\Users\Admin\AppData\Local\Temp\file.exe
        "C:\Users\Admin\AppData\Local\Temp\file.exe"
        2⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:4996
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k copy Painted Painted.cmd & Painted.cmd & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3492
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:4552
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
              PID:3764
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              4⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:2052
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe bdservicehost.exe nswscsvc.exe sophoshealth.exe"
              4⤵
                PID:2300
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c md 140027
                4⤵
                  PID:412
                • C:\Windows\SysWOW64\findstr.exe
                  findstr /V "ongoingdarknessheardfundamentals" Dicke
                  4⤵
                    PID:3356
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b Coordinator + Hold + Rhythm 140027\H
                    4⤵
                      PID:3284
                    • C:\Users\Admin\AppData\Local\Temp\140027\Happening.pif
                      140027\Happening.pif 140027\H
                      4⤵
                      • Suspicious use of NtCreateUserProcessOtherParentProcess
                      • Checks computer location settings
                      • Executes dropped EXE
                      • Checks processor information in registry
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of FindShellTrayWindow
                      • Suspicious use of SendNotifyMessage
                      • Suspicious use of WriteProcessMemory
                      PID:456
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HDGDGHCAAKEC" & exit
                        5⤵
                        • Suspicious use of WriteProcessMemory
                        PID:2524
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /t 10
                          6⤵
                          • Delays execution with timeout.exe
                          PID:732
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout 5
                      4⤵
                      • Delays execution with timeout.exe
                      PID:1808
                • C:\Windows\SysWOW64\cmd.exe
                  cmd /k echo [InternetShortcut] > "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TechHarbor.url" & echo URL="C:\Users\Admin\AppData\Local\MaritimeTech Dynamics\TechHarbor.js" >> "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TechHarbor.url" & exit
                  2⤵
                  • Drops startup file
                  PID:2488

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    H

                    • Path C:\Users\Admin\AppData\Local\Temp\140027\H
                    • Size 346KB
                    • SHA256 322f275e5b893b8da1f2ffde8ec3472d9356aeebd3f8e1203fd500a9534c4cdb
                    • MD5 SHA1 SHA512 SSDEEP

                    Happening.pif

                    • Path C:\Users\Admin\AppData\Local\Temp\140027\Happening.pif
                    • Size 915KB
                    • SHA256 8498900e57a490404e7ec4d8159bee29aed5852ae88bd484141780eaadb727bb
                    • MD5 SHA1 SHA512 SSDEEP

                    Analyze

                    • Path C:\Users\Admin\AppData\Local\Temp\Analyze
                    • Size 10KB
                    • SHA256 f2ff747cfdfcf13d007609405f56fd6250135b50885dfd66ae217c3e8f0e0ac2
                    • MD5 SHA1 SHA512 SSDEEP

                    Computation

                    • Path C:\Users\Admin\AppData\Local\Temp\Computation
                    • Size 5KB
                    • SHA256 d24410b87bd280e0a239c08af3f911f39022414c978f60f79dfbc17611fea3b0
                    • MD5 SHA1 SHA512 SSDEEP

                    Coordinator

                    • Path C:\Users\Admin\AppData\Local\Temp\Coordinator
                    • Size 124KB
                    • SHA256 ec9d3b36f7410b6356ae9b53bf8d49534ca5493c6c866958d997025e958b29a9
                    • MD5 SHA1 SHA512 SSDEEP

                    Decrease

                    • Path C:\Users\Admin\AppData\Local\Temp\Decrease
                    • Size 64KB
                    • SHA256 17bdd0a593c3a70c920d3dc4e758a8f7a5676cc17b2cd920cfccebf076e42851
                    • MD5 SHA1 SHA512 SSDEEP

                    Dicke

                    • Path C:\Users\Admin\AppData\Local\Temp\Dicke
                    • Size 157B
                    • SHA256 9c635ba52246dfb81225a539bddf62a323ec25391d9e52181be88f6cb443c788
                    • MD5 SHA1 SHA512

                    Doctrine

                    • Path C:\Users\Admin\AppData\Local\Temp\Doctrine
                    • Size 69KB
                    • SHA256 748d1be0ef94c8823c148e69b8d81377385a4aa4afc005c67c6466f188c2afce
                    • MD5 SHA1 SHA512 SSDEEP

                    Ensure

                    • Path C:\Users\Admin\AppData\Local\Temp\Ensure
                    • Size 46KB
                    • SHA256 ac5ab3ead6322e91733e3a3e0b294b9830c6148f345ec21d22bf92d6b8ca5f71
                    • MD5 SHA1 SHA512 SSDEEP

                    Fetish

                    • Path C:\Users\Admin\AppData\Local\Temp\Fetish
                    • Size 61KB
                    • SHA256 6ca3abd72183df349cfcc3cc866e65854c3b409cd0e3c780b4819c2672fc481b
                    • MD5 SHA1 SHA512 SSDEEP

                    Governing

                    • Path C:\Users\Admin\AppData\Local\Temp\Governing
                    • Size 64KB
                    • SHA256 db51d1ee61e70191fe40633d121a4660b047a9a820fa37a1d84673947cc8bd7b
                    • MD5 SHA1 SHA512 SSDEEP

                    Gratuit

                    • Path C:\Users\Admin\AppData\Local\Temp\Gratuit
                    • Size 64KB
                    • SHA256 5980acaf95da28c5eff0770cc7779c2551dd44d95fdb2ac415b7f6f400150c94
                    • MD5 SHA1 SHA512 SSDEEP

                    Halo

                    • Path C:\Users\Admin\AppData\Local\Temp\Halo
                    • Size 26KB
                    • SHA256 72634f99a6f4b4d3d7194e191a9e62957648faa8bd5d429d537d500414da8056
                    • MD5 SHA1 SHA512 SSDEEP

                    Healing

                    • Path C:\Users\Admin\AppData\Local\Temp\Healing
                    • Size 6KB
                    • SHA256 ceaff2127fba389db5a434eaffff6dd9a5ea5fb59d389b9514e5df2c682e6946
                    • MD5 SHA1 SHA512 SSDEEP

                    Hold

                    • Path C:\Users\Admin\AppData\Local\Temp\Hold
                    • Size 179KB
                    • SHA256 925f257a91f4651a975b9dc8d9c971a5f5ec97ce31f1cf9ae9b06c45cbd9f773
                    • MD5 SHA1 SHA512 SSDEEP

                    Missing

                    • Path C:\Users\Admin\AppData\Local\Temp\Missing
                    • Size 27KB
                    • SHA256 8cca4052b5e7a9c9c730c0486716bfdd1cc12d167a4c485aae81c506b6717347
                    • MD5 SHA1 SHA512 SSDEEP

                    Painted

                    • Path C:\Users\Admin\AppData\Local\Temp\Painted
                    • Size 13KB
                    • SHA256 a7a4281bb0ede83cb54f185872226e0f634ac87d3ea56a9ebe4cb1fda852f7f7
                    • MD5 SHA1 SHA512 SSDEEP

                    Paintings

                    • Path C:\Users\Admin\AppData\Local\Temp\Paintings
                    • Size 27KB
                    • SHA256 bd8eaea46a1be8740accf43d12d7b73e0113ec33ff0a5e07d070289278f5562c
                    • MD5 SHA1 SHA512 SSDEEP

                    Promotion

                    • Path C:\Users\Admin\AppData\Local\Temp\Promotion
                    • Size 66KB
                    • SHA256 62b70c044cbd870b07ff67aaa9c5a4a64a99e2f683911e134436c2f08b530dba
                    • MD5 SHA1 SHA512 SSDEEP

                    Recreation

                    • Path C:\Users\Admin\AppData\Local\Temp\Recreation
                    • Size 56KB
                    • SHA256 1160a3c21164a6fb1f2a6f7f67cf7cfe7c1726717f631119224ca1f72034403b
                    • MD5 SHA1 SHA512 SSDEEP

                    Rhythm

                    • Path C:\Users\Admin\AppData\Local\Temp\Rhythm
                    • Size 43KB
                    • SHA256 0683228c1fd52868ac49e3c3fcb9a266e94ffb86812c3aaf58d497da771e631d
                    • MD5 SHA1 SHA512 SSDEEP

                    Room

                    • Path C:\Users\Admin\AppData\Local\Temp\Room
                    • Size 24KB
                    • SHA256 485191b6c573d26c287bbcdd3d38ee571f01ae81e21461220d294529d3afc5e1
                    • MD5 SHA1 SHA512 SSDEEP

                    Social

                    • Path C:\Users\Admin\AppData\Local\Temp\Social
                    • Size 52KB
                    • SHA256 84802ff0309f059530939690ffeefc77f31c6ffde9842adae9f3861b6b015172
                    • MD5 SHA1 SHA512 SSDEEP

                    Talked

                    • Path C:\Users\Admin\AppData\Local\Temp\Talked
                    • Size 10KB
                    • SHA256 06bcb3b0b85bf13c9be9928392e9f8de08390f33989b10705b1ac978de19f473
                    • MD5 SHA1 SHA512 SSDEEP

                    Trucks

                    • Path C:\Users\Admin\AppData\Local\Temp\Trucks
                    • Size 33KB
                    • SHA256 7ded30fe0e555dbe4d0494de71b14befe89ef9ee2aee9ba1715ab45a01bd108d
                    • MD5 SHA1 SHA512 SSDEEP

                    Unnecessary

                    • Path C:\Users\Admin\AppData\Local\Temp\Unnecessary
                    • Size 6KB
                    • SHA256 e1d1f95b7eddd8aa99ec1dba8b65b16eee4be311fabee439c8f1050035ada7aa
                    • MD5 SHA1 SHA512 SSDEEP

                    Until

                    • Path C:\Users\Admin\AppData\Local\Temp\Until
                    • Size 49KB
                    • SHA256 11df0e68b617f574d910fc02f79346a510458f5176cbdeeec06dcc1bcff9c5e4
                    • MD5 SHA1 SHA512 SSDEEP

                    Val

                    • Path C:\Users\Admin\AppData\Local\Temp\Val
                    • Size 59KB
                    • SHA256 51bf8ceffc6128f75f39a61c2ff59f0c0ba3c90f772e607cac730c16a83d6b47
                    • MD5 SHA1 SHA512 SSDEEP

                    Wilderness

                    • Path C:\Users\Admin\AppData\Local\Temp\Wilderness
                    • Size 43KB
                    • SHA256 587d7fad1949d722ba304c591514cc677d41d8aa1da83d640899be79f32d8966
                    • MD5 SHA1 SHA512 SSDEEP

                    Zope

                    • Path C:\Users\Admin\AppData\Local\Temp\Zope
                    • Size 48KB
                    • SHA256 455a1cff615cb851e99c3a7d2f419cc072ff61636f8c19e3b27a64ae9d89434d
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/456-387-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-420-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-374-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-375-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-376-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-386-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-372-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-389-0x000000000C740000-0x000000000C99F000-memory.dmp

                    memory/456-402-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-403-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-419-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-373-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-437-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-438-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-448-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-449-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-456-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-457-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-464-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-465-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-466-0x0000000004570000-0x00000000047B8000-memory.dmp

                    memory/456-467-0x0000000004570000-0x00000000047B8000-memory.dmp