Malicious PDF — malware analysis report

Static analysis result for SHA-256 85110be792cba8cb…

MALICIOUS

PDF

38.8 KB Created: 2020-08-16 21:24:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 116e136016e69026140978d3a81a6950 SHA-1: 71c83455d2fc5404055378aeabecc205defd473e SHA-256: 85110be792cba8cb77ab8ecbf6cfc3ba18e685cc37ae62f6e29196f850b821c7
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, suggesting a phishing or scam attempt disguised as educational material. The primary redirector URL is https://ttraff.cc/pify?keyword=macmillan+english+worksheets+for+grade+7, which likely leads to further malicious content. The ML classifier strongly supports 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=macmillan+english+worksheets+for+grade+7 In PDF document text
    • http://files.fiveboroughbucketlist.com/uploads/1/3/2/8/132814972/4342650.pdfIn PDF document text
    • http://files.linwoodrumney.com/uploads/1/3/1/4/131453255/sedemumejemojad-gavetoguriwus-bebodolopeju-rugiluxogugigo.pdfIn PDF document text
    • http://files.lipsbylil.com/uploads/1/3/1/4/131406781/woxunidonulek-mesonanomi-zifutegudax.pdfIn PDF document text
    • http://seduwaf.apply-me.com/uploads/1/3/1/3/131379182/wepowidu_kumejedapuvo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1134/1479/files/54284543261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4944/2713/files/55338734825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9218/9089/files/82667735603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0877/8663/files/12102507581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/adobe_indesign_cs6_basic_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30036161276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4551/9513/files/55774319403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3511/3110/files/31161793674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/puregimerininunim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1150/5302/files/digital_amazing_bible_timeline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3575/3639/files/91492490971.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B9F 5464 bytes
SHA-256: c77e61e69aa8a373be56e34e71da9559d19ad71af72dd8e34818a292420c18d0
font_01_sfnt_off00005e1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1B 9928 bytes
SHA-256: 23a93f413b8bec28d3f0100075ca15c971c1c44c3a3631fde25c8f94b45b6500
font_02_sfnt_off00007fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFF 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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