Analysis

  • max time kernel
    94s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 09:24

General

  • Target

    5c4992108c7c312408fb94508890b2615fbe7fecb09cac3b7a2cf38581e28be5.exe

  • Size

    292KB

  • MD5

    89599341387624a951de84b66f9ec572

  • SHA1

    e44a6665fecc1b38903a01c72901ee88e618f077

  • SHA256

    5c4992108c7c312408fb94508890b2615fbe7fecb09cac3b7a2cf38581e28be5

  • SHA512

    9e7f25b5e6704dc91bbbc9ba1e1528b2c34d81ead50ad3cdf6b3b4911a044e5b9d733d0882316cc97735971ff3aadf9b5117af355a6ca48a6ac96610668465cd

  • SSDEEP

    6144:oE8c1gkq908NkcFaTLaol+j17zPDr/MMUxc4EO:Wc1T78NkeaTLKzLrLAEO

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 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 12 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c4992108c7c312408fb94508890b2615fbe7fecb09cac3b7a2cf38581e28be5.exe
    "C:\Users\Admin\AppData\Local\Temp\5c4992108c7c312408fb94508890b2615fbe7fecb09cac3b7a2cf38581e28be5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2168
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:4948
        • 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:1084
          • C:\ProgramData\BAAFCAFCBK.exe
            "C:\ProgramData\BAAFCAFCBK.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3108
            • 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:456
          • C:\ProgramData\GHCAKKEGCA.exe
            "C:\ProgramData\GHCAKKEGCA.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2724
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
                PID:3652
              • 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:4956
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGHCBKKKFHCG" & exit
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2080
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                4⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3472

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\BAAFCAFCBK.exe

          Filesize

          355KB

          MD5

          731a25a9b1f2c31056f7bd75c71deac4

          SHA1

          ac95005a75add78f8226e553ff3bb32bcfeef1ea

          SHA256

          d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d

          SHA512

          efccfa84482c3a262c2efe9d5107a22a94efae352a46d01c0c677266835bb1d4b04a105ff7b94c5042640d40672576512ca06201260a5ee82257c7f524304fa4

        • C:\ProgramData\GDHIIIIEHCFI\CFIJEB

          Filesize

          160KB

          MD5

          f310cf1ff562ae14449e0167a3e1fe46

          SHA1

          85c58afa9049467031c6c2b17f5c12ca73bb2788

          SHA256

          e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

          SHA512

          1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

        • C:\ProgramData\GHCAKKEGCA.exe

          Filesize

          293KB

          MD5

          6d1999f1096cee3f06507e0d896d7c4a

          SHA1

          947cde63e799d23622468caecd0172a4ce8e8c17

          SHA256

          6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c

          SHA512

          eb46aa64facd4456eaad1b24ee158b9e7bd5426580caf1ca4d5cd24fe08127612b8fcb2e1cedd054daff85e315d3942fb75bc5959c89baadf832d70a8a0982b1

        • 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

          4c4bf9e4d624f1045d8f73ed7f97dc3e

          SHA1

          1d78800f4a780fc6f75a778faeed2baaf84f2206

          SHA256

          6dcfee83067db655225002d6ee68c1948d82de8a4b488355fbdee6fce73638db

          SHA512

          4c950580ec4fb088382f066948964846bbee5d575eac1f70253e5adc3c09f071d398c1b6eb42fb2a00e017ba2a344ef6709c6f321a5b38db8bd39933989494bb

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

          Filesize

          2KB

          MD5

          9541342916b0c5b0ee2f6062398b867f

          SHA1

          46fc51b5aa29f366ef96946c16cbe9b7f67c9392

          SHA256

          e6548a38d5a516be84c393b45ce4a1577e4bbd6bb40aad980237037fe0e5a740

          SHA512

          d763f9f0676bb94f8211aae463896cf1c545531c1c43ee9d60272427c3a7ea56dc332e8e4a08c570a87bc26908de326ef0f196da8ad79051f6cad2dfcd0579aa

        • 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

          087d354d5449465ba9bfe28455e2a600

          SHA1

          1047e63b87c6c0d755f99444ed36f852c88fce72

          SHA256

          2b71731553479d4ebddf4b6356cbbabcac44c9e4cbb5e7d64e1f994fb4cf5a9a

          SHA512

          451ee68c13652da70864741ec205f9f22f1be55f80e6be4b6addf0a89413e26c2f2a2287587c4b47a7501ea270cf60b725343836aa10f589dfcae64cb3cf8bde

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

          Filesize

          450B

          MD5

          14c5aea8c47f0cd9d35fa480cf9a1266

          SHA1

          72605622adef018eb2282048c94c6afa95dec56d

          SHA256

          17729ae4a256bbaa7345b004c33dfaa06148c893df86198a058693ae5c035169

          SHA512

          6c6a7e5541c07bf9182443e56b22246b5cf337b89fe4e5ecb25c818ee7f563731c79842895c5bad34f962630a21dc8c32412bfed4bd8a89efcd7adfbfd876daa

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

          Filesize

          458B

          MD5

          fa39257eaa1463f7624221d5f23f0bcc

          SHA1

          94c90cde1ac6e8d5d09ff5d5afdfcf8bb25b206d

          SHA256

          3181cb72587620fd9c158c1e93a15277bb1e5acd507c1cb7c4921e59da05022c

          SHA512

          e0eff6039ef1f8378514c5216f13887591681fdf37436ac91f15d23b85dff2600bb0809565864bbb14d9427d1ea31965ae87e12240ab6471399a45eea8e43d23

        • memory/456-122-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/456-125-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/456-119-0x0000000000400000-0x000000000045D000-memory.dmp

          Filesize

          372KB

        • memory/1084-27-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-11-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-29-0x0000000022630000-0x000000002288F000-memory.dmp

          Filesize

          2.4MB

        • memory/1084-86-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-87-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-94-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-95-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-9-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-4-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-28-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-62-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-61-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-45-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/1084-44-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-139-0x0000000000FF0000-0x000000000103A000-memory.dmp

          Filesize

          296KB

        • memory/2992-6-0x00000000748F0000-0x00000000750A0000-memory.dmp

          Filesize

          7.7MB

        • memory/2992-7-0x00000000748F0000-0x00000000750A0000-memory.dmp

          Filesize

          7.7MB

        • memory/2992-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

          Filesize

          4KB

        • memory/2992-2-0x00000000748F0000-0x00000000750A0000-memory.dmp

          Filesize

          7.7MB

        • memory/2992-1-0x0000000000A20000-0x0000000000A6A000-memory.dmp

          Filesize

          296KB

        • memory/3108-115-0x0000000071E3E000-0x0000000071E3F000-memory.dmp

          Filesize

          4KB

        • memory/3108-124-0x0000000071E30000-0x00000000725E0000-memory.dmp

          Filesize

          7.7MB

        • memory/3108-117-0x0000000071E30000-0x00000000725E0000-memory.dmp

          Filesize

          7.7MB

        • memory/3108-116-0x0000000000560000-0x00000000005BA000-memory.dmp

          Filesize

          360KB

        • memory/4956-143-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/4956-145-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/4956-141-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/4956-154-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/4956-155-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/4956-157-0x000000001FD30000-0x000000001FF8F000-memory.dmp

          Filesize

          2.4MB

        • memory/4956-170-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB

        • memory/4956-171-0x0000000000400000-0x0000000000657000-memory.dmp

          Filesize

          2.3MB