Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfdab1c6e3277360…

MALICIOUS

PDF

45.0 KB Created: 2021-06-03 06:37:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e1cc37e6f79718c0b9417f75b932a13c SHA-1: c8ee49fc3f081ac27703ea7db4f80f62b68a711a SHA-256: bfdab1c6e3277360bd49b502e7026fc868903f9cd46a040247f1cf8febc7fca5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The ML classifier also flagged this PDF as malicious. The document body, though partially corrupted, contains URLs that align with the heuristic findings, suggesting a lure to download potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/minecraft-java-edition-free-download-game-hack In PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/robux-win_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-ad_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/near-tiktok-free-likes_GM835599320.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.sdmtenggarong.sch.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.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_004_off00005594.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5594 24284 bytes
SHA-256: 34de436f90df92617f16d508598c99b4a5007d408e87387d6f99b60d06e1f308
font_01_sfnt_off00008c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C8B 18572 bytes
SHA-256: be0be2e0bd1478f571662982334261f36152068b9a395b749ff064ff651796b1

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