Malicious PDF — malware analysis report

Static analysis result for SHA-256 760afa18cf2da173…

MALICIOUS

PDF

40.6 KB Created: 2020-08-09 10:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 928376f913a9728558211eea5f107c23 SHA-1: 78177e840ed9e18cc9023d0ab07fcefdaf9b774f SHA-256: 760afa18cf2da173b0ca4f347b736c02e4835261e1af999f4bbb7136706c60b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body text, though garbled, includes the same lure text and URLs found in the heuristics, suggesting a phishing or scam attempt. The primary malicious URL is https://ttraff.cc/pify?keyword=types+of+bandaging+in+first+aid+pdf, which likely leads to a malicious payload or further phishing content.

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=types+of+bandaging+in+first+aid+pdf In PDF document text
    • http://files.fountaincityartguild.com/uploads/1/3/0/7/130775245/b7bf6ecc.pdfIn PDF document text
    • http://rileg.kamagraoz.com/uploads/1/3/2/6/132681670/4948095.pdfIn PDF document text
    • http://files.laurakmaxwell.com/uploads/1/3/1/3/131379381/2405598.pdfIn PDF document text
    • http://files.praetorium-latobicorums.com/uploads/1/3/1/3/131380934/kekuvuzob.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/1/0433/1172/6750/files/tails_os_virtualbox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8578/1397/files/kixewarekimimukemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jeravutudab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80084587067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1358/7623/files/18987071569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/laxulosuzaduzebiwapapukul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94192334972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/autodesk_inventor_stress_analysis_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/desilibigezoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7805/0201/files/tofagixobuwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/excel_format_phone_number.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

Related samples 3

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_off00006168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6168 5368 bytes
SHA-256: 2bc26a0068e04edaf9417226377c2f43c649e3128f461a048dc37f9dd32cc547
font_01_sfnt_off000073bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BB 9864 bytes
SHA-256: 87f2c6de5acff7224168ee824493abf3cbf329096ff613847432cf7d30513b38

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