Analysis

  • max time kernel
    132s
  • max time network
    299s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19/09/2024, 22:46

General

  • Target

    e4c2d3c019cf5161619d1f6ef5a76d7fb68f0cc9d4b0d004653e38bff42edf19.exe

  • Size

    283KB

  • MD5

    5c984dd83c65ae6b6f2d93a60ae40bfd

  • SHA1

    1ec1891c37d87fc565d93557a6b4d08da151badb

  • SHA256

    e4c2d3c019cf5161619d1f6ef5a76d7fb68f0cc9d4b0d004653e38bff42edf19

  • SHA512

    5f09ec740cd62c0ad5c94d53fbb8444e388ef4cf54ba4d12f1a7916048327ff3b9cd3d8cbd54d4678bacf178a93a35662b6ddf82c8049d199366ceac32c52ed9

  • SSDEEP

    6144:cf2UKkk1T+5pKHhU7mncSw2DND25SL3ttU3NAYTYsCmK0vEO:0juCeHe7mcMD25g3ttdSYsCpCEO

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 18 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 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 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).

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 30 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4c2d3c019cf5161619d1f6ef5a76d7fb68f0cc9d4b0d004653e38bff42edf19.exe
    "C:\Users\Admin\AppData\Local\Temp\e4c2d3c019cf5161619d1f6ef5a76d7fb68f0cc9d4b0d004653e38bff42edf19.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4768
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\ProgramData\KFCFBAAEHC.exe
        "C:\ProgramData\KFCFBAAEHC.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4812
        • 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:4164
      • C:\ProgramData\GHJDGDBFCB.exe
        "C:\ProgramData\GHJDGDBFCB.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2244
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:1760
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:2072
            • 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:4148
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GHDBKJKJKKJD" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3528
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:4948

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\GHJDGDBFCB.exe

        Filesize

        293KB

        MD5

        6d1999f1096cee3f06507e0d896d7c4a

        SHA1

        947cde63e799d23622468caecd0172a4ce8e8c17

        SHA256

        6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c

        SHA512

        eb46aa64facd4456eaad1b24ee158b9e7bd5426580caf1ca4d5cd24fe08127612b8fcb2e1cedd054daff85e315d3942fb75bc5959c89baadf832d70a8a0982b1

      • C:\ProgramData\KFCFBAAEHC.exe

        Filesize

        355KB

        MD5

        731a25a9b1f2c31056f7bd75c71deac4

        SHA1

        ac95005a75add78f8226e553ff3bb32bcfeef1ea

        SHA256

        d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d

        SHA512

        efccfa84482c3a262c2efe9d5107a22a94efae352a46d01c0c677266835bb1d4b04a105ff7b94c5042640d40672576512ca06201260a5ee82257c7f524304fa4

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

        Filesize

        2KB

        MD5

        4c4bf9e4d624f1045d8f73ed7f97dc3e

        SHA1

        1d78800f4a780fc6f75a778faeed2baaf84f2206

        SHA256

        6dcfee83067db655225002d6ee68c1948d82de8a4b488355fbdee6fce73638db

        SHA512

        4c950580ec4fb088382f066948964846bbee5d575eac1f70253e5adc3c09f071d398c1b6eb42fb2a00e017ba2a344ef6709c6f321a5b38db8bd39933989494bb

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

        Filesize

        2KB

        MD5

        7ec05ad5ad4ea2f59d78a181b608dfb1

        SHA1

        95dfcb1ca8c7c6353bfc940c79f877d491158faa

        SHA256

        197a38efa533f9ff60b730cbc9b5fb604893e8dfb08a9ba85f0e5424779e3759

        SHA512

        da07b1ce6b278f20a93cfb83107be1a96bd134657be71f31b314e981ae9f85a8db50ae10458612bd460baca5e9402d5bce61b11ed648b191be42882273b8c00a

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

        Filesize

        1KB

        MD5

        9ea353ed4fed6ed641da2a1a1e66cbf3

        SHA1

        42cf55d3608819795042c23df5f18fcd2b6b0c58

        SHA256

        5245794a9cb70971f00a51f56b8b5305d16629c4d0d0e95916371a20a6119485

        SHA512

        7476acf575e998c56bae27703d635c82a5cfd43f736b9618ec430168148f25d79c97ca344670298b51956ca0b3707d6499ef5865fe1b933acb948dddc822d05e

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

        Filesize

        458B

        MD5

        8274b563c59aba1f3b8e05c4e79225da

        SHA1

        66b0df5f4e2e5b18e8beff640afbab880615071f

        SHA256

        ace80f108c53e469b8ddcb873e1c7c3cefe1c86b1c04ece097335bdf29532385

        SHA512

        80eb164981eec0403e4a932d5a6dbef53ade9926425e78b539742d6a2c7c36f646ef935c2ecaf99b481e521524cdfe7a911f338c52551c4da276fcdeadfa06b1

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

        Filesize

        450B

        MD5

        d395cbf510381d7be5ebb54a7c77fdec

        SHA1

        a21e4636273deac2cd9bc0cd0d9c85ce37d17ad9

        SHA256

        e3eab4a0e6699ecfdc54a9f1f3402422b60ecb25799ad0eb7f73edc515c2684d

        SHA512

        5624a29d49412f225a847e3b9fd3bb0dd7f778bf20bd87a90d5cdf31675382f89b5175695d2666c02b0000188746d30f9f2368e6a5b669a25c99ef980cfdb691

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

        Filesize

        458B

        MD5

        cd2adc530bb7f9d95f6f61ce752dae34

        SHA1

        1bda3d1537060fcb7046bdd80827d32c12e12d2e

        SHA256

        cc2ad1929c4b3f5152edd74d0f7bcfa32070c6bc83b0672fdd21f091d60d36e6

        SHA512

        74a7b22b334d4af7c8044a95799cb6210bff0033fb791dfa08393907ffa44e46d9afe0b3b81c9621916d142625b111af97e08a3da1eb86289924623247c484b4

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\Y86D9NNI.cookie

        Filesize

        104B

        MD5

        aa5580ebc7928fd1c03279e36dfe720d

        SHA1

        a440011c88aa5235a5c197cd8af1ada98ebb9d85

        SHA256

        b9ac1fb4ebf69f5ba549c7ee797c1d39078836226f3a2ee8b7b38115b57793bd

        SHA512

        9920445bba29d283e34116c0e0a5a0cd47320afd78779ac568b8170cabe37d6e88740ca5147873613602c6f9c917b5e2a7da8d924e70627a5f71af82c4f3f788

      • \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/2196-45-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-9-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-4-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-44-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-71-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-72-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-82-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-83-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-29-0x0000000022770000-0x00000000229CF000-memory.dmp

        Filesize

        2.4MB

      • memory/2196-7-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-27-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2196-28-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/2244-116-0x0000000000410000-0x000000000045A000-memory.dmp

        Filesize

        296KB

      • memory/4148-122-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-120-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-133-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-144-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-118-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-132-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-145-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/4148-134-0x00000000203E0000-0x000000002063F000-memory.dmp

        Filesize

        2.4MB

      • memory/4164-104-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/4164-107-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/4164-101-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/4768-12-0x00000000731A0000-0x000000007388E000-memory.dmp

        Filesize

        6.9MB

      • memory/4768-53-0x00000000731A0000-0x000000007388E000-memory.dmp

        Filesize

        6.9MB

      • memory/4768-0-0x00000000731AE000-0x00000000731AF000-memory.dmp

        Filesize

        4KB

      • memory/4768-2-0x0000000005630000-0x0000000005B2E000-memory.dmp

        Filesize

        5.0MB

      • memory/4768-1-0x0000000000980000-0x00000000009CA000-memory.dmp

        Filesize

        296KB

      • memory/4812-99-0x0000000070C40000-0x000000007132E000-memory.dmp

        Filesize

        6.9MB

      • memory/4812-97-0x0000000070C4E000-0x0000000070C4F000-memory.dmp

        Filesize

        4KB

      • memory/4812-98-0x0000000000290000-0x00000000002EA000-memory.dmp

        Filesize

        360KB

      • memory/4812-108-0x0000000070C40000-0x000000007132E000-memory.dmp

        Filesize

        6.9MB

      • memory/4812-106-0x0000000070C40000-0x000000007132E000-memory.dmp

        Filesize

        6.9MB