Analysis

  • max time kernel
    27s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2024 15:41

General

  • Target

    file.exe

  • Size

    283KB

  • MD5

    84354d3c9965d9a0878596e347a34f39

  • SHA1

    f8e6d9f00d72f6f023e8d793462b7bb90cc31583

  • SHA256

    4e20a0aa3d323c0a1aa676c7eb3656cdd34cb69da614b4dc8aa946f5bcb2be39

  • SHA512

    2356ba4867985b609e1727f2a4877649f6c1b415d089dcef22c695baa42d3051cb6fb799eb7056ca75301a1aba47e71354e5051868f5bda04a62932a3ef72ad3

  • SSDEEP

    6144:S6JmCTAAGH0Jd9KZxnLlIak8/nPIO02s9F8oBNvAd9GzKeXOvEO:7mCTAAkY905yagO0D0OAH4KNEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/fneogr

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 16 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 10 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 3 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 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2648
    • 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:2780
      • C:\ProgramData\HIIDGCGCBF.exe
        "C:\ProgramData\HIIDGCGCBF.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2144
        • 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
          • Suspicious use of WriteProcessMemory
          PID:1684
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 252
            5⤵
            • Program crash
            PID:948
      • C:\ProgramData\CFBFHIEBKJ.exe
        "C:\ProgramData\CFBFHIEBKJ.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1708
        • 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:1312
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GDBFHDHJKKJD" & exit
        3⤵
          PID:2648
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:2720

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      342B

      MD5

      8a014b6811425120f5addb09a6eac6cc

      SHA1

      2b363d73b0ba7bff3bee8fbcce1366085c64a0af

      SHA256

      6ac54b29ab473ca2f12e49f6beaca9366f75fa216fd46a759d773876378da58f

      SHA512

      ebf915a124f5fe4ebba36484bc19650d3422c5f879c03a77fd1537721457d5aa7e125386fb846a9ab5d51433d79ce85cdc9de16fb22bde4622c18673ad5d84f8

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

      Filesize

      342B

      MD5

      e1d238bfe88ce780fea178035eeadac2

      SHA1

      75b986365ad3d130f1fe9ed0da6fe078b3d818b7

      SHA256

      1e0d52c41963f4df19215e39e927090982a32746218091ebf0aee35e83bd0a3c

      SHA512

      11798cabb8ddc11c2f05b71fa2a61daa97cf22b50a2a6d19095633cdb8a9373b4410e67bcb9d1ac9ded0cd4df33d8a196333233567a07fea74997525997706d5

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\K3VL8XEP\76561199768374681[1].htm

      Filesize

      33KB

      MD5

      35d22805d12bd9b0657ca76a4ced8c23

      SHA1

      493691e34f16bf86b5fc73bac26e461eea1c51d1

      SHA256

      5a3961c110b6662072dc253217af0618acb845ad7e36239a1f00daf0f77ffc7a

      SHA512

      b47ad9cbe700d0ec7fc78988ccae327e46493047fb2dc1c75a7db10ecd50ae60af2cbed3967e635463e8b61b31bf74ba2ccc276ec6125c95017bc708e85e50f8

    • C:\Users\Admin\AppData\Local\Temp\Cab893E.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\Tar8951.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \ProgramData\CFBFHIEBKJ.exe

      Filesize

      283KB

      MD5

      84354d3c9965d9a0878596e347a34f39

      SHA1

      f8e6d9f00d72f6f023e8d793462b7bb90cc31583

      SHA256

      4e20a0aa3d323c0a1aa676c7eb3656cdd34cb69da614b4dc8aa946f5bcb2be39

      SHA512

      2356ba4867985b609e1727f2a4877649f6c1b415d089dcef22c695baa42d3051cb6fb799eb7056ca75301a1aba47e71354e5051868f5bda04a62932a3ef72ad3

    • \ProgramData\HIIDGCGCBF.exe

      Filesize

      321KB

      MD5

      e318c6ab13d30b93d2d43bf5d2c31fe5

      SHA1

      2096056b203ea938312af04ce137353eac6a03d3

      SHA256

      f43e034a2bee82ed71caf1f838be515abef3bd8bb562bdae3d5abb4f194c492d

      SHA512

      bc0bfbdf77a6da47f67201f6a1f049072ff0bb1c289eccc739c07b49c4eafe3b9053d31671f08ffdb833ee469dfcab95374ed199267fab86f38e9db7d7fbce75

    • \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/1312-726-0x00000000202B0000-0x000000002050F000-memory.dmp

      Filesize

      2.4MB

    • memory/1312-707-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1312-688-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1684-500-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1684-502-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1684-490-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1684-491-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1684-492-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1684-494-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1684-496-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1708-540-0x0000000001270000-0x00000000012BA000-memory.dmp

      Filesize

      296KB

    • memory/2144-487-0x000000007275E000-0x000000007275F000-memory.dmp

      Filesize

      4KB

    • memory/2144-504-0x0000000072750000-0x0000000072E3E000-memory.dmp

      Filesize

      6.9MB

    • memory/2144-488-0x0000000000C90000-0x0000000000CE4000-memory.dmp

      Filesize

      336KB

    • memory/2648-246-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2648-1-0x0000000000FB0000-0x0000000000FFA000-memory.dmp

      Filesize

      296KB

    • memory/2648-12-0x0000000073F10000-0x00000000745FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2648-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

      Filesize

      4KB

    • memory/2780-433-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-171-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-6-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-414-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-371-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-220-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-352-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-201-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-190-0x0000000020680000-0x00000000208DF000-memory.dmp

      Filesize

      2.4MB

    • memory/2780-14-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-152-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2780-16-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-7-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-3-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-4-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-5-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-8-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2780-11-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB