Malicious PDF — malware analysis report

Static analysis result for SHA-256 211d4f26ad2ae434…

MALICIOUS

PDF

35.5 KB Created: 2021-05-21 05:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 69272dfe36c42c49a25ddcfc2981747c SHA-1: 4f76a6923d7ec5770fe9085d56ac5facabb18437 SHA-256: 211d4f26ad2ae434f90448afaea4fc8e204b350933493ae23662017f04cb15de
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded links suggest an attempt to trick users into visiting potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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.xyz/app/835599320/free-tiktok-followers-without-survey-game-hack In PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_002_off0000302b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x302B 24504 bytes
SHA-256: 29553462f310c19468a1113c4129471b77bc510d28231673a339111882c63a1a
font_01_sfnt_off000068d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68D3 18492 bytes
SHA-256: 972c5a70dc749ce35053117f722bbed941df8334d0eeada4bf476963a288ca46

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