Malicious PDF — malware analysis report

Static analysis result for SHA-256 08bd0c3e10029710…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 12:18:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 12c903c5a464b93b20bce0b16c54dd98 SHA-1: 67acc5a80012b77e00bec173abc281486e4b1fda SHA-256: 08bd0c3e1002971084b6515ef631d7364ab48560db321e80859094e02dace808
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are designed to lure users with promises of game hacks and free spins. The primary link, 'https://netcdn.xyz/app/406889139/collect-free-spins-coin-master-game-hack', is flagged as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering attempt to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 https://netcdn.xyz/app/406889139/collect-free-spins-coin-master-game-hack PDF link annotation
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/lots-of-robux_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/get-roebucks-com_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/legit-free-spins-coin-master_GM406889139.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
stream_003_off000049df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49DF 25368 bytes
SHA-256: eb9025e7803cee611c611cda32b1098f897ffab8f0a96b14552f033df6a3cfe8
font_01_sfnt_off00008426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8426 17960 bytes
SHA-256: 56908844ab102c912342fec259dbf5a97100868d5d877c05497f82053eb67f28

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