Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f7ecdd43299f547…

MALICIOUS

PDF

56.0 KB Created: 2020-08-03 03:52:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 251ad4cb0d38ebb1a7ecabf982d079fe SHA-1: f1b5fa326ca85811e5885271a05aa52369c3fc51 SHA-256: 9f7ecdd43299f54796e8c4e0b95db3094ddbabb36c46f206c0f774af2bb07e91
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits characteristics of a link farm, embedding numerous URLs that likely serve to either manipulate search engine rankings or redirect users to malicious destinations. The presence of a URL pointing to a known malicious redirector (ttraff.cc) strongly supports this assessment. While no scripts were extracted, the sheer volume of embedded links and the malicious redirector indicate a high likelihood of a phishing or content-luring attack.

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=new+york+time+zone In PDF document text
    • http://files.muziekcursusonline.com/uploads/1/3/0/7/130776529/pofokegitexal_wabesobowe.pdfIn PDF document text
    • http://files.uprighthealthandwellness.com/uploads/1/3/1/0/131070579/2e5d6ca3c.pdfIn PDF document text
    • http://files.tristatemaxedoutwomenspac.org/uploads/1/3/1/4/131407247/6303637.pdfIn PDF document text
    • http://files.luxeymaison.com/uploads/1/3/2/6/132695329/wolosi.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/1/0437/5566/7605/files/mva_gift_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4247/1064/files/jadexonubunidonukodovefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/nefixofig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1081/files/gofimatide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/8448881952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67257536452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1462/7234/files/vemapakopunujupetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/sugokulewabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/reservoir_dogs_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6607/1971/files/suzuki_gsx750f_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/xamuvuzerijopimazupi.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 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_off00009f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F26 4688 bytes
SHA-256: c115c908f3b073acf93ac9ab6115086d6eb3c2a44d40f3b8d5d23b4069768d96
font_01_sfnt_off0000af28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF28 10692 bytes
SHA-256: c25e21fbd586f6972e642cea3ad40fe487019eb0efc6eaf82f95809eec7f6de7

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