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Analysis

  • max time kernel
    95s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/09/2024, 01:09

General

  • Target

    3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe

  • Size

    283KB

  • MD5

    e2cd52e91edffa873b4e1630684ea6c6

  • SHA1

    dcbb5971ecb7353062ed294f6d867da2bb179975

  • SHA256

    3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1

  • SHA512

    e59f885e6424860e6d0cfebc8e712f1929cbc029e63f49c22c3623af268c2c537089779cf06a1b91d355aac8c6c21aaf66db0044031d09d1fc88d0196fbfe7f6

  • SSDEEP

    6144:tFOUZ4uCh3Nc+8iakTqQ7G1fN6bSBvFIIv1vxklTXfRI4EBIGZ5EO:SUSuCj8iHjiNGkFfxxW64EBIGZ5EO

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 20 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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 7 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 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe
    "C:\Users\Admin\AppData\Local\Temp\3d9855fcc2f225022896fb91724692a925354adee0985c94e18db195fa7c08e1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3516
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks computer location settings
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1408
      • C:\ProgramData\BAFIEGIECG.exe
        "C:\ProgramData\BAFIEGIECG.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2180
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 720
          4⤵
          • Program crash
          PID:216
      • C:\ProgramData\KFBFCAFCBK.exe
        "C:\ProgramData\KFBFCAFCBK.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1868
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:5028
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:4604
            • 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
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1436
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DAAFIIJDAAAA" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2120
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:4928
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2180 -ip 2180
        1⤵
          PID:3120

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\AAAKEBGDAFHI\FIIIIJ

          Filesize

          160KB

          MD5

          f310cf1ff562ae14449e0167a3e1fe46

          SHA1

          85c58afa9049467031c6c2b17f5c12ca73bb2788

          SHA256

          e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

          SHA512

          1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

        • C:\ProgramData\BAFIEGIECG.exe

          Filesize

          322KB

          MD5

          a5098dee7d78acfb0294523855906aad

          SHA1

          5f44ca3f038456d07f7702cf061e7dad0039a8fb

          SHA256

          b07e6681aedf25d80c36bb0cb362d3d9c22c17a42d03e42e0d2413ad1be1a4c2

          SHA512

          b962efb2830b82e3cb4e39e3bd09ae68211dc0842ebd3c497e9425fcdd8ffb6eb09ca29386bf80fe9487346979592cbbc0f14c71e81129faf5ffd6f544226552

        • C:\ProgramData\KFBFCAFCBK.exe

          Filesize

          283KB

          MD5

          ac7314c596e766b8f4f368579e2e0f8f

          SHA1

          0e4941e5e4299d04b9408194542c7362bcabcd2f

          SHA256

          be442a04bc031b4dc72835efeeeb025e9a103c8012382173965fba30bd3a96b9

          SHA512

          4258b6d15cd1c87d1787507f9132e5cf2caebfbf46dd055950dec8bb55faa094571d5b88cc58078adbab49f72fd3439f14ccae04de3d4bde672a540699a49428

        • C:\ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • C:\ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

          Filesize

          2KB

          MD5

          f3996f922326413e2e955f3774434d01

          SHA1

          a68789fa985ebfab0c61bbee12098e404288cded

          SHA256

          34a9640d4292dbc5d1fee85322b3c457eb2ee28284618a602ec936de9a104200

          SHA512

          34b7c1c1e5bdaa7da31887fce2b8069203922599824fd28e1db53cd0ebd343118c7899f56159eeb0500c96ca0ba4e9f28a6695f8032ca4acb4ee17204b746376

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

          Filesize

          2KB

          MD5

          e2e9309062d386d7fec2730d865be1b3

          SHA1

          30dbe40a07dd56429b70601ff35c954d78ee99b9

          SHA256

          01459ba654c52454a8dae37f078fffc280d3a13b55837fd82d05a9c902e88ebb

          SHA512

          46ec1842ed5b93bf5e2533ce2561b0035ff0beb8e5ce61ecb2ec7bdb13f54e38a7a44d258b6713deb5278b39a6cd8b8dff349d3a2a088f9f4014eed6262f6b63

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

          Filesize

          1KB

          MD5

          17bc873e2a1ececdb96ba865079e2f7a

          SHA1

          a44455ae9199b8f0b798ffe8952d2ce2b3cdf335

          SHA256

          aaf3cca466c1452b3c1947aebea6107b1fba212c1cf9a0bcb2f7515b2a6cccea

          SHA512

          cc0b2d9cd308ec3b289e67f8041a633099a69705587fd042201a3d2badc3cebdf18a971997fb9c3148ee9a016385f4657f74029bc47770e61c1b2c0c63f4adac

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

          Filesize

          458B

          MD5

          95ca6cd9a2bea9c02cd05ed1b9feaeb3

          SHA1

          a7f277170f8de202cc795e3520b41fcd78dfbc4e

          SHA256

          1e7c84836df3c1ef6a7eae0d65c606a43e7c9677589fd0bf8e919eff305e5a98

          SHA512

          51585b0c4d083568d12c1cdc97715f328bb76b38e9d4772771f1b649ad278c906357b2a3bc19b068de02958c771a76fbb834110b4cf0da0a72f820cd5147d7ad

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

          Filesize

          450B

          MD5

          997dd639178b75b17f70b9989f0672db

          SHA1

          e80bf0976e0d415cd564a8fe5d8b68d0846b5f65

          SHA256

          4c3a867005c79f31cbdd5369617638e5d682241585af4dc38221826d26d2c4f5

          SHA512

          15be67b028ecdab4978c38e4c03b6c9e275229565638c5d06faaa2d9b28838f57339ced87a9b407b321045fde31b65b2dff9f8d7ebd91d2d81f8830473b4c288

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

          Filesize

          458B

          MD5

          40ff71860718486fa58dcb50b2c78100

          SHA1

          660499a799de5406b0cb7c77a1f386539df5b086

          SHA256

          6ce06bded1663cdb558870760e01a90e1aa64d51e2e152cca3a9cc71b90384a9

          SHA512

          d51296352e02bc35e2ac9e7811b77ac72f949555d306ff308f910576ff0a5060161a34301fe059544af00f644a240621617b589fb47eb9cece6fec6b59700e28

        • memory/1408-41-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-4-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-59-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-42-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-58-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-83-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-84-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-9-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-92-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-93-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-26-0x0000000022970000-0x0000000022BCF000-memory.dmp

          Filesize

          2.4MB

        • memory/1408-8-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-24-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1408-25-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-137-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-124-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-128-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-126-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-154-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-153-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1436-139-0x00000000201C0000-0x000000002041F000-memory.dmp

          Filesize

          2.4MB

        • memory/1436-138-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1868-122-0x0000000000A00000-0x0000000000A4A000-memory.dmp

          Filesize

          296KB

        • memory/2180-108-0x00000000004E0000-0x0000000000534000-memory.dmp

          Filesize

          336KB

        • memory/2180-107-0x0000000071B6E000-0x0000000071B6F000-memory.dmp

          Filesize

          4KB

        • memory/3516-2-0x0000000005A70000-0x0000000006014000-memory.dmp

          Filesize

          5.6MB

        • memory/3516-0-0x00000000745CE000-0x00000000745CF000-memory.dmp

          Filesize

          4KB

        • memory/3516-12-0x00000000745C0000-0x0000000074D70000-memory.dmp

          Filesize

          7.7MB

        • memory/3516-91-0x00000000745C0000-0x0000000074D70000-memory.dmp

          Filesize

          7.7MB

        • memory/3516-1-0x0000000000B60000-0x0000000000BAA000-memory.dmp

          Filesize

          296KB