Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a63c084615ff5b…

MALICIOUS

PDF

42.3 KB Created: 2021-05-22 23:07:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2c661ae7d8c4e4e2477040722e413aef SHA-1: d32ce20cb63794d6fa3fc50da7d1f1c9174fefe0 SHA-256: e1a63c084615ff5b547143650ee78504698dd7703c8a985732e74c4436a6df6d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting 'game hacks' and 'generators'. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further malicious content or exploit kits, aiming to trick the user into downloading or executing a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9506

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/how-to-hack-to-get-robux-game-hack In PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/where-tiktok-free-views-and-likes_GM835599320.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/spins-for-coin-master_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_off0000337f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x337F 36996 bytes
SHA-256: 361e461eb7cfb00be7e25f77786c1e19a1fb82130c2b2a6254c2939a0b020a09
font_01_sfnt_off00008369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8369 18516 bytes
SHA-256: e2a97b64806b22db336191728b408e5b7179700d4ee5fd3b4b30addea2706a3c

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