Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8ea0ccfb68f9b74…

MALICIOUS

PDF

35.4 KB Created: 2021-07-08 08:29:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: dcd4a109c5f423fbe5509cbceac3e65c SHA-1: 17639e56b1ed06804481852245b8d5be78f0c4bd SHA-256: d8ea0ccfb68f9b749b60d2d154440efc45fa6281596073bb4466c349e11e7756
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link to a "game hack" website, indicating a social engineering lure to trick users into visiting a potentially malicious site. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent. The document likely serves as a lure to drive traffic to a malicious website, possibly for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hack-without-human-verification-india-game-hack PDF link annotation
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-hack-2021-october_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/cheats-for-lumber-tycoon-2-on-roblox_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/is-bank-account-info-stored-in-roblox-if-account-hacked_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/get-robux-com_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/wurst-18_GM479516143.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.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_002_off000032ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32EE 22664 bytes
SHA-256: 5598b5f4e52158adda13b07c709b7e77b7fd9cf0ac1dee913d6bca3f999238fa
font_01_sfnt_off0000655c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655C 19076 bytes
SHA-256: 5a923ff08e7318c3a9c8736db5a5b2755814f854ec7f5c8b5bbbefeeabd9ec4c

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