Analysis

  • max time kernel
    28s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/09/2024, 01:24

General

  • Target

    a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75.exe

  • Size

    283KB

  • MD5

    3817c947e0d26bde329f7481b6d76709

  • SHA1

    8f1003d9bd8194b486634df3bbe6dbd64b923e9f

  • SHA256

    a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75

  • SHA512

    79cff23f8fad0c1ad2cfcda5f7ab1e4b618c4d49fb4a488cb986b1f708ebe94fb0751f9a6d99e4acebef4a70e4c101bb60db85455bdfbeaa66b5246672698017

  • SSDEEP

    6144:J4C2lKti9a/UIPZHrk6BcHvJ1rOjMmmqAZMzLswInEO:J4iwerk6qHrCMmbEyABEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

  • Detect Vidar Stealer 24 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 2 IoCs
  • Loads dropped DLL 14 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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75.exe
    "C:\Users\Admin\AppData\Local\Temp\a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2112
    • 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
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2964
      • C:\ProgramData\KFBGDBFBKK.exe
        "C:\ProgramData\KFBGDBFBKK.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2252
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 560
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1676
      • C:\ProgramData\EHCGIJDHDG.exe
        "C:\ProgramData\EHCGIJDHDG.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:2332
          • 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:2416
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JDGHIIJKEBGI" & exit
          3⤵
            PID:2788
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • Delays execution with timeout.exe
              PID:2724

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\FIIEGDBAEBFI\CBAFCA

        Filesize

        148KB

        MD5

        90a1d4b55edf36fa8b4cc6974ed7d4c4

        SHA1

        aba1b8d0e05421e7df5982899f626211c3c4b5c1

        SHA256

        7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

        SHA512

        ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

        Filesize

        471B

        MD5

        c1588d04597ff6ef2986ff7e8c236fd9

        SHA1

        d433792785b9cf2ea6f4a0cf52811e3e8ba0c51e

        SHA256

        48655dcd73a09d4eb2c2e4fa394016d6776b819ba5a3ff1472ff7fccb1c46066

        SHA512

        306801673868b2a7e2bc9884f9d9a9735cd878de888536dfa26faec0a0dccc9d230ddbf2d98253c6cef2aef52384f8b4bd56b061c7148decbab33b3f649cc909

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

        Filesize

        342B

        MD5

        30ff1e6315178cc8baa72f1006385493

        SHA1

        f53cbdc62fa3cdec40323826f0e467f3288ab2b5

        SHA256

        cb45bbb5676410be3b070ce824dccd6be8a6a05698d3f3d73c52753d6e592841

        SHA512

        f219404446a1fde59208b1775b93376888d2f7f874559a96691ee31bd0a9a8f92df56dc65e03c8904cddfcc4753245227b44240e4e35f82ef8a1e8ff62295096

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

        Filesize

        400B

        MD5

        d6d4ef0e9747665e115c671f980f7970

        SHA1

        4b156102cacf449560f4f1b9a8af8e9645a468fe

        SHA256

        72f05ac49852a1cf214d9d00ec50d424e85ae78d11b90a67c51dcf6167876fc1

        SHA512

        3ed0744110c53c5f77afdfd6af26d3353debcdfc600cc36a8b6a0881de18f5d4c2b42bf51419cc27bbc0272a7c39c5bd6054c54da34c6acef00f5ba3ec464699

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\56KJ964X\76561199768374681[1].htm

        Filesize

        33KB

        MD5

        729b6f983ad9381408f940d84efa77c7

        SHA1

        de43571e8dce695496966c3f74de47af8368c1a3

        SHA256

        3f0e8b6b3bfa577e13bad19d34ecdb1f760dfbf138778bfdae066964e116cccc

        SHA512

        a9ef68874eee3dded7afb98cbab4234166350d7011d658323a76bfe8fa67fc3e36423d1495808a635ddb688e091940ae5fbc8e074658567e60a289fc9798443f

      • C:\Users\Admin\AppData\Local\Temp\Cab986B.tmp

        Filesize

        70KB

        MD5

        49aebf8cbd62d92ac215b2923fb1b9f5

        SHA1

        1723be06719828dda65ad804298d0431f6aff976

        SHA256

        b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

        SHA512

        bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

      • C:\Users\Admin\AppData\Local\Temp\Tar990A.tmp

        Filesize

        181KB

        MD5

        4ea6026cf93ec6338144661bf1202cd1

        SHA1

        a1dec9044f750ad887935a01430bf49322fbdcb7

        SHA256

        8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

        SHA512

        6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

      • \ProgramData\EHCGIJDHDG.exe

        Filesize

        283KB

        MD5

        ac7314c596e766b8f4f368579e2e0f8f

        SHA1

        0e4941e5e4299d04b9408194542c7362bcabcd2f

        SHA256

        be442a04bc031b4dc72835efeeeb025e9a103c8012382173965fba30bd3a96b9

        SHA512

        4258b6d15cd1c87d1787507f9132e5cf2caebfbf46dd055950dec8bb55faa094571d5b88cc58078adbab49f72fd3439f14ccae04de3d4bde672a540699a49428

      • \ProgramData\KFBGDBFBKK.exe

        Filesize

        322KB

        MD5

        a5098dee7d78acfb0294523855906aad

        SHA1

        5f44ca3f038456d07f7702cf061e7dad0039a8fb

        SHA256

        b07e6681aedf25d80c36bb0cb362d3d9c22c17a42d03e42e0d2413ad1be1a4c2

        SHA512

        b962efb2830b82e3cb4e39e3bd09ae68211dc0842ebd3c497e9425fcdd8ffb6eb09ca29386bf80fe9487346979592cbbc0f14c71e81129faf5ffd6f544226552

      • \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/1756-540-0x0000000000820000-0x000000000086A000-memory.dmp

        Filesize

        296KB

      • memory/2112-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

        Filesize

        4KB

      • memory/2112-1-0x0000000000ED0000-0x0000000000F1A000-memory.dmp

        Filesize

        296KB

      • memory/2112-14-0x00000000746B0000-0x0000000074D9E000-memory.dmp

        Filesize

        6.9MB

      • memory/2252-504-0x0000000000D90000-0x0000000000DE4000-memory.dmp

        Filesize

        336KB

      • memory/2252-495-0x000000007322E000-0x000000007322F000-memory.dmp

        Filesize

        4KB

      • memory/2416-750-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-562-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-554-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-566-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-557-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-558-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-560-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-568-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-564-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2416-769-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-565-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-736-0x0000000017A00000-0x0000000017C5F000-memory.dmp

        Filesize

        2.4MB

      • memory/2416-719-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2416-698-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-13-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-441-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-422-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-381-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-360-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-236-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-210-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-196-0x000000001A140000-0x000000001A39F000-memory.dmp

        Filesize

        2.4MB

      • memory/2964-184-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-157-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-11-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-16-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2964-8-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-4-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-5-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-6-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-7-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2964-3-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB