Malicious PDF — malware analysis report

Static analysis result for SHA-256 93d9b8c7a43af7c0…

MALICIOUS

PDF

37.9 KB Created: 2021-05-25 08:12:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ac577251b6ff88e1a8f3b8e3fcd4755a SHA-1: a92cd8531614860c6a97636999d018f1ac153fab SHA-256: 93d9b8c7a43af7c04db9789659968529f76a0dc326778d738c33bc2c15916291
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The document body and embedded links suggest an attempt to trick users into visiting these sites, which likely serve as a distribution point for further malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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/431946152/free-robux-codes-2021-not-used-game-hack In PDF document text
    • https://elearning.mtsn2mdn.sch.id/__statics/gudangsoal/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2mdn.sch.id/__statics/gudangsoal/files/robux-online_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2mdn.sch.id/__statics/gudangsoal/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2mdn.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2mdn.sch.id/__statics/gudangsoal/files/coin-master-free-download-pc_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_002_off0000345a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x345A 26768 bytes
SHA-256: dfed03c3a7ebae71b2426f8910773955cae4064e3591a2e557517c9142b183b7
font_01_sfnt_off000070c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C4 18880 bytes
SHA-256: 342a41804753b243bf13fa7c19db71c7debbb8fa80f4750c82899b0ccf7aa343

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