Malicious PDF — malware analysis report

Static analysis result for SHA-256 10c032736d4db4c6…

MALICIOUS

PDF

47.4 KB Created: 2021-05-14 23:10:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d70ef56a7e298c8d2a1f57499357f087 SHA-1: 931b6d6682d75d579670980db15e11b41846f7e8 SHA-256: 10c032736d4db4c6b7c1edfc45bb447754b4384d747be21fa47d55e33289527f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/coin-master-free-spins-facebook-game-hack PDF link annotation
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/mcpe-116_GM479516143.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/robux-scam_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://bormuratourtravel.com/ckfinder/userfiles/files/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ae3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE3 24292 bytes
SHA-256: 539554090a1509fcddc069925f645a7bca9c997bde634454e3408a44a04f4c26
font_01_sfnt_off00008269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8269 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off000096f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96F4 18212 bytes
SHA-256: a7d0484bdc545634c9b46f4dcbf794c30064c3aaaf3cdd537b213ac19f08a95c

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