Malicious PDF — malware analysis report

Static analysis result for SHA-256 6305ff9705890feb…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 10:34:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d26b9a3cb581031dda99a2d214483015 SHA-1: a93b5c54ef4bb38f5e1571c053f935df62024237 SHA-256: 6305ff9705890feb36b7c2b2ad63b74211760b0c207942c3c102b936a40d4168
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 0.9865

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.online/app/431946152/free-avatar-roblox-game-hack PDF link annotation
    • http://perpus.masda.ac.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-tiktok-invitation-template_GM835599320.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/pokemon-go-free-accounts-2021_GM1094591345.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/fake-gps-for-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/claim-free-spins-coin-master_GM406889139.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_004_off000051b3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51B3 25308 bytes
SHA-256: da05ffc7896fa8fa7b3b8bd7550c84a37ed60e5ead53ef614c3651c9e91c1a85
font_01_sfnt_off00008c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C94 18396 bytes
SHA-256: b4dd3c4f3ffdeae702bf7cab5d0e67b2e51f16692fa370b224309c32516adec8

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