Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1cbdb5dedba01eb…

MALICIOUS

PDF

40.1 KB Created: 2021-05-23 11:05:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fbc5ddc2b96dffc67a4249e24e594c3f SHA-1: bbfd94ec9d96c734dd7e3d1339201736c99500f6 SHA-256: e1cbdb5dedba01ebf52a5199c63cee252ace6b4af273805de6e7fcf67e0712e5
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 redirectors, specifically advertising 'game hacks' and 'generators' for popular games. The document body, though partially corrupted, contains text and URLs that reinforce this lure. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-hacked-com-2021-game-hack, which is likely used to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8010

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/roblox-hacked-com-2021-game-hack In PDF document text
    • https://agriturismolagodoro.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://agriturismolagodoro.com/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://agriturismolagodoro.com/images/tiktok-free-hearts-apk_GM835599320.pdfIn PDF document text
    • https://agriturismolagodoro.com/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://agriturismolagodoro.com/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002ffe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FFE 28060 bytes
SHA-256: be5090b80c6a3cc5f0ecd825728c4b7e77488d240b6ff7984a6696cc78fc0902
font_01_sfnt_off00006f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F13 2888 bytes
SHA-256: dcdd98ee8e25436a83587ccb4027347dd2c3fcec95f3413942edd4086125bcca
font_02_sfnt_off000078e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E6 19016 bytes
SHA-256: 1bdffeea421802d48c0c5f4972bc43262882194040db90b4400103ab0d186a68

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