Analysis

  • max time kernel
    123s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    07-09-2024 02:59

General

  • Target

    patch.exe

  • Size

    588KB

  • MD5

    2afbb4562f46e981beae497935002d3c

  • SHA1

    8ede8d5c5551a8b6237a3c04f77b6f374e7c3539

  • SHA256

    7b949ec5f73dff9e83d9c5e8995e025940f1ed6d3b07c27923d9321ca9a42ead

  • SHA512

    112cc4a88078bfbadc86fe9e193b09307fe076be20b2080af968c8aea2d91ba691fe418444ea22b6c7e49dab9db4bb6b121f40e1aabef4219a4d62ab6fccab54

  • SSDEEP

    12288:Fvly0YiZfGHMwK7aAbMH3150pYEqstB166O0qyFAGLHZD0a+:Fdy0YhM8CMLyYitBC0qyFNZT

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 4 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 1 IoCs
  • Loads dropped DLL 4 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 1 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\patch.exe
    "C:\Users\Admin\AppData\Local\Temp\patch.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2908
    • 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
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3876
      • C:\Users\Admin\AppData\Roaming\WindowsServices\WindowsServices.exe
        "C:\Users\Admin\AppData\Roaming\WindowsServices\WindowsServices.exe"
        3⤵
        • Executes dropped EXE
        • 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:2364
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AEBAFBGIDHCB" & exit
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:540
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            5⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:2980
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 1340
        3⤵
        • Program crash
        PID:1332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    435c514b98bdbe75ad1f70e11b1bfee7

    SHA1

    4f5028c9c2e7eba53078a67eac8d08a228b5b03d

    SHA256

    641f5fd81515770173893874863a1552502656a76d1dad8d09769d60ee73ff33

    SHA512

    be41572f535cd4667e604b646129144b1bb228f65c502a5925d99d4f90720e1e1d59461834b8542d64ec29dbe720627a15e4a00c2d5299f348ec8336be7aee21

  • C:\Users\Admin\AppData\Local\Temp\CabF2F8.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarF31B.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\WindowsServices\WindowsServices.exe

    Filesize

    264KB

    MD5

    c46cf092ca90dec5d9794d58bc3d60af

    SHA1

    ee85693b181df0518ec1404831d0d0b05c97fdaf

    SHA256

    e708ccdb34685d4df6d7a8959f2dc98d28f1a5bbf89120ff595613a1df7ab2d7

    SHA512

    acbd3ab6958eb2b78cb0884ffba5bed24249421c1db1c2093e42f69a80bffdaaaedb785b726e742a1dfbc16499724ca3f56e6027dbbace840a5eb7f8f9d68af0

  • \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/2364-1284-0x0000000000C70000-0x0000000000EC7000-memory.dmp

    Filesize

    2.3MB

  • memory/2364-1193-0x0000000000C70000-0x0000000000EC7000-memory.dmp

    Filesize

    2.3MB

  • memory/2364-687-0x0000000000C70000-0x0000000000EC7000-memory.dmp

    Filesize

    2.3MB

  • memory/2908-50-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-36-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-14-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-10-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-8-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-6-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-38-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-44-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-54-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-66-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-64-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-62-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-60-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-58-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-56-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-52-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

    Filesize

    4KB

  • memory/2908-48-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-46-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-42-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-40-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-16-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-34-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-32-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-30-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-28-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-655-0x0000000000A10000-0x0000000000AA2000-memory.dmp

    Filesize

    584KB

  • memory/2908-656-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2908-672-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2908-1-0x0000000001160000-0x00000000011F8000-memory.dmp

    Filesize

    608KB

  • memory/2908-18-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-20-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-2-0x00000000059D0000-0x0000000005A66000-memory.dmp

    Filesize

    600KB

  • memory/2908-3-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-22-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-26-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-4-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-24-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/2908-12-0x00000000059D0000-0x0000000005A5F000-memory.dmp

    Filesize

    572KB

  • memory/3876-685-0x0000000006090000-0x00000000062E7000-memory.dmp

    Filesize

    2.3MB

  • memory/3876-1191-0x0000000006090000-0x00000000062E7000-memory.dmp

    Filesize

    2.3MB

  • memory/3876-1192-0x0000000006090000-0x00000000062E7000-memory.dmp

    Filesize

    2.3MB

  • memory/3876-686-0x0000000006090000-0x00000000062E7000-memory.dmp

    Filesize

    2.3MB

  • memory/3876-673-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB