Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9731c61917e33d…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 21:45:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3a1632275cc1e44620a5d6274c382d6f SHA-1: 4f3e4e4d5b7b0e3fd7b6bcdf0e2f9ea3836e959e SHA-256: 3c9731c61917e33d52a76c7d28e2aeb39991774919b28d99108245e4c8754c46
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 0.9980

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.co/app/431946152/hacks-for-hole-in-the-wall-roblox-game-hack PDF link annotation
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/paginas-de-hacks-para-roblox-robux-gratis_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-promo-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/cheat-engine-64-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-noclip-and-speed-hack-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-bloxburg-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-noclimb-roblox-2021-marzo_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-hack-tool-no-survey-only-images_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-use-redstone_GM479516143.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
font_00_sfnt_off00002e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E02 22376 bytes
SHA-256: be464e35e56542c3ecd364eb9cfa64c6dfcfa4a9fd43430f034ca0c52ff9c337
font_01_sfnt_off00005fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEE 19184 bytes
SHA-256: 3ee000466467dc129688c682973090d4c425338bd4a4612bbce87549d7e93bf4

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