Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fedfec6d01d305f…

MALICIOUS

PDF

35.2 KB Created: 2021-05-21 08:54:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3bcc10e31dd9b6fb88828212e7552624 SHA-1: deb9bb7688d3dda2c95812782dbd8e37b2f11384 SHA-256: 9fedfec6d01d305f445437c035108ffaccc621ee41ecbb3702294efa65fb161a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting a 'game hack generator'. The document body and heuristics indicate a lure for users to click these links, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/406889139/como-hackear-coin-master-game-hack In PDF document text
    • http://www.makoto.su/images/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/coin-master-daily-free-spins-2021_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
font_00_sfnt_off0000328e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x328E 24084 bytes
SHA-256: a726d5582e01a0be5598f1520f1518ac33d2e164ab4f1fd3be942cf53afd98f5
font_01_sfnt_off0000695d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695D 17976 bytes
SHA-256: 40dd236b971f40dc9e773aba28db4bcf9d666fe41fb73238afdc269e45a8876b

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