Malicious PDF — malware analysis report

Static analysis result for SHA-256 3258b698a6e6a0e0…

MALICIOUS

PDF

33.5 KB Created: 2021-07-19 18:53:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 798152eefa736f982a373347a77bf05a SHA-1: 98afb8449c230eea4bb91509a4e1acb31f53de2f SHA-256: 3258b698a6e6a0e0e6c5bac6fc24bc74b8b2861169ebc695d4b35eeba1f54d33
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 http://netcdn.tw/app/479516143/free-minecraft-bedrock-game-hack PDF link annotation
    • https://unionmusicaldebenidorm.com/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn 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
font_00_sfnt_off00002e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E78 22732 bytes
SHA-256: 5952ae1fc6313eccc6c86b40fa0fb1d0fe81df162fe95bd0ef823a7891be7a6e
font_01_sfnt_off000060f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F2 18268 bytes
SHA-256: d34bffa2112548f8729f10b9022dbaea9618b038b2dadf4195d892bf0ac95b27

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