Malicious PDF — malware analysis report

Static analysis result for SHA-256 73c7656d096b7c08…

MALICIOUS

PDF

40.9 KB Created: 2020-08-19 18:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 931a87201d6e746a8e45d4489b1a8ca1 SHA-1: 2da1172e9111696dc546a0047e8d1539c7ed57c4 SHA-256: 73c7656d096b7c0855588b3bb31e25a55aa5454b42f0354c70eda9d697ab2e28
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, which is indicative of a link farm or phishing campaign. The primary redirector URL is https://ttraff.cc/pify?keyword=canada+food+guide+meal+plan+ideas, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting it's the intended lure. The presence of multiple PDF links and the ML classifier's high confidence further support the malicious verdict.

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=canada+food+guide+meal+plan+ideas In PDF document text
    • http://files.bouldercrescenthostel.com/uploads/1/3/0/7/130776433/4743591.pdfIn PDF document text
    • http://files.ninasestanovic.com/uploads/1/3/1/4/131438113/7688837.pdfIn PDF document text
    • http://poladeba.ccs-foundation.org/uploads/1/3/0/8/130874254/316520478d0.pdfIn PDF document text
    • http://files.yisonline.com/uploads/1/3/1/4/131438077/5574541.pdfIn PDF document text
    • http://files.annegreycollective.com/uploads/1/3/0/9/130969427/4c27f237b1bf333.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/1/0429/9119/0167/files/dolenadam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0225/6795/files/dugotonevapuvitaliz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/fekigesiwufejizoteriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/prepositions_in_english_grammar_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/82306679633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/3753949493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0813/8150/files/43891858290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2871/6440/files/xelivizutabalananizezob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/7129117134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9209/0784/files/esri_story_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/jajusorizebadi.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 6

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_off000063cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CC 5168 bytes
SHA-256: 773863efb2514b2e9ac6cfe67ce55f2d3c13654c5dff95de4a0dc040781551fe
font_01_sfnt_off00007557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7557 9772 bytes
SHA-256: 81ab42fcee63626f3f091d6f628b35c860204f8dad3dd29da02a18ac8a69e53a

Open this report in the interactive analyzer, or submit your own file for analysis.