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Analysis

  • max time kernel
    162s
  • max time network
    197s
  • 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, 22:47

General

  • Target

    f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6.exe

  • Size

    293KB

  • MD5

    b751220c1be48fcb6788c699b96256f9

  • SHA1

    503b64a2d3d276dfd676897d5f7bab42da52d5f6

  • SHA256

    f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6

  • SHA512

    33e033619cb0171ed6cc58c1244a9f9e114b06a744978302936ed2cddc514f525b6209caccbff89f458dcd4819a85b53568a96ea854ced7da6bfd837cef6152e

  • SSDEEP

    3072:swHSeMPv5iD9XhwPCGsJfaIeq+5ubKjW4tCk9j4tTG60OvRQlLvh0D2a0nZ0iUYx:zHSeMPuXhwSm5Jy89j4pKPrI6uiVvTEO

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 26 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6.exe
    "C:\Users\Admin\AppData\Local\Temp\f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2820
    • 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:2916
      • C:\ProgramData\HJDAKFBFBF.exe
        "C:\ProgramData\HJDAKFBFBF.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2668
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:3564
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:4576
            • 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:3896
          • C:\ProgramData\KECBFBAEBK.exe
            "C:\ProgramData\KECBFBAEBK.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3572
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
                PID:3576
              • 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:3456
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DHIEHIIEHIEH" & exit
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4076
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                4⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4832

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\FIIEHJDBKJKE\DAEBKK

          Filesize

          148KB

          MD5

          90a1d4b55edf36fa8b4cc6974ed7d4c4

          SHA1

          aba1b8d0e05421e7df5982899f626211c3c4b5c1

          SHA256

          7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

          SHA512

          ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

        • C:\ProgramData\HJDAKFBFBF.exe

          Filesize

          355KB

          MD5

          731a25a9b1f2c31056f7bd75c71deac4

          SHA1

          ac95005a75add78f8226e553ff3bb32bcfeef1ea

          SHA256

          d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d

          SHA512

          efccfa84482c3a262c2efe9d5107a22a94efae352a46d01c0c677266835bb1d4b04a105ff7b94c5042640d40672576512ca06201260a5ee82257c7f524304fa4

        • C:\ProgramData\KECBFBAEBK.exe

          Filesize

          293KB

          MD5

          6d1999f1096cee3f06507e0d896d7c4a

          SHA1

          947cde63e799d23622468caecd0172a4ce8e8c17

          SHA256

          6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c

          SHA512

          eb46aa64facd4456eaad1b24ee158b9e7bd5426580caf1ca4d5cd24fe08127612b8fcb2e1cedd054daff85e315d3942fb75bc5959c89baadf832d70a8a0982b1

        • 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

          e225973e0fe481a49a70a30f36975200

          SHA1

          e9a3b5fc38736f3ec0829410f6a03858df4295a2

          SHA256

          522644798f41ee390b4f504a9310d386285b848a20cc145cf7c0aff2040c6a75

          SHA512

          0933c9418d76ac18e474f4201ecc0ccfb11dbde9d4212944392eaac0260ceb7a85ad1ebd0450cf8897e4c56fc0b826f962590ff39baf0264e9aacb5b2aa227f1

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

          Filesize

          450B

          MD5

          a4e731888cd03a46b571e0691de640a9

          SHA1

          56c094f27bbe6a61569ddd8d048e620ddb628af4

          SHA256

          aa4e3ec83bb2347b6d802f6ffecabdf6967723552d62faa3f53e0680d4d6db03

          SHA512

          388741f34376017aab86ddd1ae3f7a10dff69da1b2839bd49766b19d87f05d7a9a45f7e840d1a4c323aeeabc88c89c51de3d6f14974d72bc9ee5a281bd17133b

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

          Filesize

          458B

          MD5

          cc03efbf0067cfb219a04876e6e827f2

          SHA1

          35b1efe08564a16150c3bce1a5557b824d8bce7c

          SHA256

          9045a155c2f1f0a02d58ce7a46589944d12896efd1e9a9b645e6a71d4044e6ed

          SHA512

          628f8e52084ca4179d4b8f82fdc5e1689615e4094bcee1c53bb4f3da671c0ddac53c1dadf78e3fcca25c6505a63c85ffa8909ea31fef37f5f1af9f85e04f3bfe

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\H8MMDS86.cookie

          Filesize

          102B

          MD5

          7a2645afde3c20b6fe98702834498879

          SHA1

          86b56e1702809be3797f9c2ba0332c7655a10cc4

          SHA256

          e1e99f40aa4d901246dde1985b2d92d7d9a4de541bd063e08480d0cfab4112f1

          SHA512

          dfbe981d2d8fc283d1d28797604bc9f2f417ed698287007c379e2869f5bfdb5a89b8386542255b440e5f8f9e12674052f0dc21e71f25923e11f36c328bb06834

        • \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/2668-96-0x0000000071640000-0x0000000071D2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2668-94-0x0000000000900000-0x000000000095A000-memory.dmp

          Filesize

          360KB

        • memory/2668-101-0x0000000071640000-0x0000000071D2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2668-100-0x0000000071640000-0x0000000071D2E000-memory.dmp

          Filesize

          6.9MB

        • memory/2668-95-0x000000007164E000-0x000000007164F000-memory.dmp

          Filesize

          4KB

        • memory/2820-6-0x0000000073DE0000-0x00000000744CE000-memory.dmp

          Filesize

          6.9MB

        • memory/2820-7-0x0000000073DE0000-0x00000000744CE000-memory.dmp

          Filesize

          6.9MB

        • memory/2820-2-0x0000000073DE0000-0x00000000744CE000-memory.dmp

          Filesize

          6.9MB

        • memory/2820-1-0x0000000000BE0000-0x0000000000C2A000-memory.dmp

          Filesize

          296KB

        • memory/2820-0-0x0000000073DEE000-0x0000000073DEF000-memory.dmp

          Filesize

          4KB

        • memory/2916-72-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-79-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-71-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-31-0x00000000226D0000-0x000000002292F000-memory.dmp

          Filesize

          2.4MB

        • memory/2916-4-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-45-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-29-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-46-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-9-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-11-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-80-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2916-28-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-118-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-116-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-114-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-128-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-129-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-130-0x00000000201A0000-0x00000000203FF000-memory.dmp

          Filesize

          2.4MB

        • memory/3456-144-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3456-145-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/3572-112-0x0000000000290000-0x00000000002DA000-memory.dmp

          Filesize

          296KB

        • memory/3896-102-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/3896-104-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/3896-98-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB