Malicious PDF — malware analysis report

Static analysis result for SHA-256 77fb021b113fd00c…

MALICIOUS

PDF

242.4 KB Created: 2021-04-05 11:22:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 44d2dffb5dcc55e78cf22f37ceb6855b SHA-1: f1fbed05dc7fa8e38b25ddd907ed21615df547cb SHA-256: 77fb021b113fd00c0038c65b4f4cb4677185e89def56df6d6ef4d1b6bce2bff3
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a heuristic firing for a download button, indicating a phishing attempt. The ClamAV detection as 'Pdf.Phishing.Roblox062100-9873116-0' strongly suggests a phishing lure related to Roblox. The document body, though heavily obfuscated, contains text related to 'Free Robux Via Offers', reinforcing the phishing theme.

Machine Learning

  • Nyx PDF Classifier clean score 0.2248

Heuristics 4

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://gaminggenerator.org/app/431946152/free-robux-via-offers PDF link annotation
    • http://armatrutz.de/images/free-roblox-admin-hack.pdfIn PDF document text
    • https://my-private-intendant.com/images/twitter-free-robux-codes.pdfIn PDF document text
    • https://www.anagoria.com/images/how-to-get-free-robux-without-survey-and-verification.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/hack-meep-city-roblox.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/roblox-music-id-break-free.pdfIn PDF document text
    • https://www.ghknights.org/images/10-games-that-give-you-free-robux.pdfIn PDF document text
    • https://www.academiaanticorrupcion.org/images/how-to-gert-free-robux-no-human-verificaion.pdfIn PDF document text
    • https://abouttimetech.com/images/flamingo-skin-but-its-free-roblox.pdfIn PDF document text
    • http://tegeler-segler.de/images/how-to-get-free-20210-robux.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/free-robux-roblox-music-id.pdfIn PDF document text
    • https://www.mrsz.ir/images/earn-free-robux-by-completing-offers.pdfIn PDF document text
    • http://lewishome.net/images/free-robux-hack-no-generator.pdfIn PDF document text
    • https://amatq.ca/images/hack-roblox-accounts-2021.pdfIn PDF document text
    • https://europainstitut.hu/images/policesim-hack-roblox.pdfIn PDF document text
    • http://rushxpress.de/images/cheat-codes-for-roblox-murder-mystery-2.pdfIn PDF document text
    • http://musical-arts.de/images/free-dominus-for-roblox.pdfIn PDF document text
    • http://adenmarks.se/images/free-robux-gift-card-codes-2021-december.pdfIn PDF document text
    • https://eurekaaccounting.co.za/images/roblox-ccount-crcker-free-v3million.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/roblox-free-accounts-list.pdfIn PDF document text
    • http://condit-pack.com/images/roblox-swear-hack.pdfIn PDF document text
    • http://www.centromedicoaurora.it/images/show-me-a-video-how-to-get-free-robux.pdfIn PDF document text
    • http://greasley.online/images/hack-chip-assassin-roblox.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/roblox-free-pink-hair.pdfIn PDF document text
    • http://jobsy.com.sg/images/how-to-get-any-shirt-for-free-roblox.pdfIn PDF document text
    • http://autismoalbacete.org/images/how-to-hack-a-roblox-account-with-hashes.pdfIn PDF document text
    • http://www.art-concept.gr/images/tp-hacks-script-roblox.pdfIn PDF document text
    • http://britishcomics.com/images/free-roblox-gg.pdfIn PDF document text
    • https://waterpark.by:443/images/roblox-vehicle-simulator-money-cheat.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/ben-ten-roblox-game-online-free.pdfIn PDF document text
    • http://dialine.cz/images/free-roblox-redeem-cards-28-5-2021.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00037393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37393 21716 bytes
SHA-256: 7ab25c0a76e7cce4e93f609b131f54615c7b157fd85cdfe40622a281c70a74c5
font_01_sfnt_off0003a338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A338 18080 bytes
SHA-256: 3a687d5e7cfa83fd17b27eaf3f4339ab144d7a921e67cb7b1e5a198335ce6439