Malicious PDF — malware analysis report

Static analysis result for SHA-256 eadb9b2c3719e8b5…

MALICIOUS

PDF

46.1 KB Created: 2021-06-04 01:14:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c2123167e15e3aa2faac3bb624113d8b SHA-1: 8b04ae0b3e366e74a71dda82af2308f813b6ee06 SHA-256: eadb9b2c3719e8b596cd7c9c3e03d95e8815b3e8c032bb9502656bfc9da449df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious domain, masquerading as a generator for free Robux and game hacks. The document body and heuristics indicate a lure designed to trick users into visiting these malicious sites, likely for further exploitation or credential harvesting. No scripts were extracted, but the presence of malicious redirectors and the lure strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/431946152/free-robux-come-game-hack In PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/freecoins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/best-way-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/get-gold-coin-master-village-hack_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_off00004fd5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FD5 29080 bytes
SHA-256: 19cdcfc2d6966b54e3858c7c0baf20fd19d8532b0cde977399db157b832a1029
font_01_sfnt_off000091ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91CE 18276 bytes
SHA-256: d7491fe45cc88596c87233a963b6162720bf27c142cea717df16fbc09fa29ea6

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