Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcb569c3cbb4d72…

MALICIOUS

PDF

48.4 KB Created: 2021-06-09 17:18:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 9d24e76219808663c626bdfea949d5ed SHA-1: 2645cb09c1af86779a4e6edcc56d564d88a43d35 SHA-256: 1dcb569c3cbb4d7238d9e61b0f51b24a2d3a99a97a223a1d8fb6c89860f46dcd
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.tw/app/431946152/games-on-roblox-that-have-free-boombox-game-hack In PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/purchase-iteam-free-pastebin-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/corn-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-daily-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005634.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5634 24664 bytes
SHA-256: a3492f2cf8c23d1bea61b24260ee74d26aebe7c3e6bf85fc6a775f01f3e74428
font_01_sfnt_off00008f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F10 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000098bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98BF 18820 bytes
SHA-256: 7f81a9185154a140a034c3703cc4b3f557fedaf577a337dd4c2d9416e2474935

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