Malicious PDF — malware analysis report

Static analysis result for SHA-256 085ef5599e534ce0…

MALICIOUS

PDF

42.8 KB Created: 2021-05-10 23:42:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dde2a97f8dd90259717c44b9d088c5af SHA-1: 29cf3ff42c48f60e70cd360ab3669fa918f0b5c7 SHA-256: 085ef5599e534ce0bea040ce88e142581e7becf35b9475bbe2328d172d5775c1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The document body, though heavily obfuscated, contains references to game hacks and the malicious URL. This indicates a social engineering attempt to trick users into visiting a site that likely serves 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/431946152/roblox-arsenal-hacks-download-game-hack PDF link annotation
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearningmts01sgs.sch.id/__statics/gudangsoal/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49AB 25692 bytes
SHA-256: 953b2fb5649f53c35661869cb2b77f4ddd94e9c5fa62c75a7dade801f18ca4ba
font_01_sfnt_off00008368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8368 18688 bytes
SHA-256: 3194e743087210276cc8ef30afa20718d77c17967e4a232ddce90cfa751f40c3

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