Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a932e6a648e9d65…

MALICIOUS

PDF

41.8 KB Created: 2020-08-22 15:09:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ccc10aedc03e8d660ee045894c2655ec SHA-1: eb06edf1b6c6ed38f4dafe6e6c6de884f9629648 SHA-256: 5a932e6a648e9d65fe30be5c99ef219d4197cb86ee0e2f17b41b1fed8d33adde
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to redirect users to external sites, masquerading as a free game download. The primary redirector URL is https://ttraff.cc/pify?keyword=bully+game+free++for+windows+8, which is associated with malicious infrastructure. The document body and heuristics indicate a link farm strategy to distribute further PDF files, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=bully+game+free++for+windows+8 In PDF document text
    • http://files.nrt-ias.org/uploads/1/3/1/4/131453522/soribamirawiwug-nasajipafisuw-mozunevuxevonop-vatojujinewovi.pdfIn PDF document text
    • http://geweja.comteachers.com/uploads/1/3/1/4/131437601/lebubudulowes.pdfIn PDF document text
    • http://lonukilod.emergingartistgallery.com/uploads/1/3/0/8/130813710/diseveloven-lijexuvotexe-virafisaviga.pdfIn PDF document text
    • http://vajinolux.danehillhistory.org/uploads/1/3/1/4/131406717/3851561.pdfIn PDF document text
    • http://files.justicefarms.com/uploads/1/3/1/4/131437225/fbfb02ea27.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1663/4016/files/7782641095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4327/4395/files/53553060564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/romexupulonelavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9735/6443/files/gun_in_mouth_emoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/dujusozujak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4023/4917/files/biography_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/concepto_de_servidor_web.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8392/3609/files/44653829627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6746/4085/files/10740727092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/nephrolithiasis_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9883/2037/files/pofomebusobujupej.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6449 5664 bytes
SHA-256: b0bee0f981c6600bb4bff3a7a8583721ac690abfe652d9d80827148f007d5355
font_01_sfnt_off00007799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7799 10232 bytes
SHA-256: 19b7a6aedb6a26b85bff9d10d40895f223efbc760930c6433532c66513cb9f94