Malicious PDF — malware analysis report

Static analysis result for SHA-256 5660fa90870c6df5…

MALICIOUS

PDF

35.9 KB Created: 2021-05-21 03:58:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: dd3c934de5d710d5e9853fdc34690b0b SHA-1: c913c5ce7724457e89470b398eae919f16585c10 SHA-256: 5660fa90870c6df538e17aeabfd586138845c780fa3e98695be00d82506483f6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free generators, directing users to a suspicious URL. The presence of multiple embedded URLs and the 'GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious workflow designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/how-to-get-minecraft-for-free-on-nintendo-switch-game-hack PDF link annotation
    • http://ines.co.rs/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/free-roblox_GM431946152.pdfIn PDF document text
    • http://ines.co.rs/images/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://ines.co.rs/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.freenom.comHeyIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000333f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x333F 24876 bytes
SHA-256: f27457139a5d185cd1b0f969689717c4d8d85ea07f554b91068036cab321cd49
font_01_sfnt_off00006b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3F 18212 bytes
SHA-256: f5fb374f4c57ea8e5b07667c881ff92ebdf307e1f7f4ca70019b2384515d6573

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