Analysis

  • max time kernel
    24s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 01:11

General

  • Target

    434f2dc20a710077ba861c9a118223c51f04662d6edcb492812c6468e4cede48.exe

  • Size

    283KB

  • MD5

    0d2bcf6e8f35ef48b85b997e23fbec5f

  • SHA1

    3d1bac7342eff07e1f5682e7ad591f0be2eff9d4

  • SHA256

    434f2dc20a710077ba861c9a118223c51f04662d6edcb492812c6468e4cede48

  • SHA512

    3be9df19930613b864daa5f903dafddad3e758fe4cf8863b69b7b43a7b3222601800543b7c8d0ef8063a3e01af702a1bd04f04edb391091314f10d5f98861350

  • SSDEEP

    6144:AA0VuptENYAdPF3ghtSgrFk0ynrSmOoFiY8+bXU9eNqgzdsq7JEO:HaupqNYAdd30cgafO0FigEO

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 15 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 38 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\434f2dc20a710077ba861c9a118223c51f04662d6edcb492812c6468e4cede48.exe
    "C:\Users\Admin\AppData\Local\Temp\434f2dc20a710077ba861c9a118223c51f04662d6edcb492812c6468e4cede48.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1520
    • 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:1332
      • C:\ProgramData\CFBFHIEBKJ.exe
        "C:\ProgramData\CFBFHIEBKJ.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 560
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1956
      • C:\ProgramData\KJKJJEGIDB.exe
        "C:\ProgramData\KJKJJEGIDB.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:660
        • 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:776
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IDHIIJJJKEGI" & exit
        3⤵
          PID:2068
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:1252

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • 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

      fa6c066ed17aa7747490009bfc611de0

      SHA1

      e36471068849722ec6dfa1f1623852a885884a4a

      SHA256

      409b81717c0ace52b82022a6b91703326c7393f312e8720e3f89fd369d278032

      SHA512

      916e704033ccfd8eb68a9aadd2eb16dce7736560422543868a56e692b8a681b130818c15bbe4ed2b3b6e14a99dba098f60d73a515fe99333f4fb9e5321a04a58

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

      Filesize

      400B

      MD5

      ebc36956bc5a182b4df71e4f1f524430

      SHA1

      4b0d126e1310e80dd08178884cd2c1cd5f3305b5

      SHA256

      43088f6927a466f7fce67951d6eb996baa4c71e90741a45cbde08c945abfbc46

      SHA512

      2094766ce12fe5009630a941490209b239d36cd47b087763604acb5bad62187cd40546632c75fa0dc869b95654b4a4d5eb68f9253b31d65bb8924e2b15d9bced

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\DJB1KT77\76561199768374681[1].htm

      Filesize

      33KB

      MD5

      cad43b5cc52bf1cbb772db38b62f9999

      SHA1

      ee2f2266575bfab3d43f438eb97efb2136322bc6

      SHA256

      5ecf233f7f008cb9808f19b4f65099ffd27ff4f9f60e32d60a9582b90a77b73b

      SHA512

      5bcf422f684ed6cba54547cfadf1a0c3b1254050090a34271e9ffb6352f558b6c23be524ab925bfc03a222015120ba06fe8ecef331cbd3852a6fa9d4cf81f2c6

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

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \ProgramData\CFBFHIEBKJ.exe

      Filesize

      322KB

      MD5

      a5098dee7d78acfb0294523855906aad

      SHA1

      5f44ca3f038456d07f7702cf061e7dad0039a8fb

      SHA256

      b07e6681aedf25d80c36bb0cb362d3d9c22c17a42d03e42e0d2413ad1be1a4c2

      SHA512

      b962efb2830b82e3cb4e39e3bd09ae68211dc0842ebd3c497e9425fcdd8ffb6eb09ca29386bf80fe9487346979592cbbc0f14c71e81129faf5ffd6f544226552

    • \ProgramData\KJKJJEGIDB.exe

      Filesize

      283KB

      MD5

      ac7314c596e766b8f4f368579e2e0f8f

      SHA1

      0e4941e5e4299d04b9408194542c7362bcabcd2f

      SHA256

      be442a04bc031b4dc72835efeeeb025e9a103c8012382173965fba30bd3a96b9

      SHA512

      4258b6d15cd1c87d1787507f9132e5cf2caebfbf46dd055950dec8bb55faa094571d5b88cc58078adbab49f72fd3439f14ccae04de3d4bde672a540699a49428

    • \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/660-533-0x0000000000C60000-0x0000000000CAA000-memory.dmp

      Filesize

      296KB

    • memory/776-550-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-561-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-554-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-562-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-699-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-556-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-558-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-564-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-552-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-718-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-737-0x0000000020340000-0x000000002059F000-memory.dmp

      Filesize

      2.4MB

    • memory/776-747-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/776-766-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/788-496-0x0000000000060000-0x00000000000B4000-memory.dmp

      Filesize

      336KB

    • memory/788-497-0x000000007309E000-0x000000007309F000-memory.dmp

      Filesize

      4KB

    • memory/1332-14-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-5-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-423-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-380-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-361-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-230-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-211-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-197-0x000000001DDF0000-0x000000001E04F000-memory.dmp

      Filesize

      2.4MB

    • memory/1332-177-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-158-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-16-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-6-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-11-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1332-3-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-4-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-442-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-7-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1332-8-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1520-12-0x00000000747A0000-0x0000000074E8E000-memory.dmp

      Filesize

      6.9MB

    • memory/1520-19-0x00000000747A0000-0x0000000074E8E000-memory.dmp

      Filesize

      6.9MB

    • memory/1520-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

      Filesize

      4KB

    • memory/1520-1-0x00000000009C0000-0x0000000000A0A000-memory.dmp

      Filesize

      296KB