Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e52cfa8cc608f32…

MALICIOUS

PDF

44.5 KB Created: 2020-08-05 15:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3c453e77a5ae84aa3ab7c7e54f46ae3 SHA-1: 88211cb7a2ebc7b128245c6123820022a453bd9f SHA-256: 7e52cfa8cc608f32103d6bfba7562ab259c655bfe22bb14f1032608b9ba34f5f
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=medium+access+control+sublayer+pdf', which is also flagged as a malicious redirector. This suggests the PDF is designed to lead users to malicious content, likely for phishing or malware delivery.

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=medium+access+control+sublayer+pdf In PDF document text
    • http://files.nikkilmoore.com/uploads/1/3/0/8/130873921/c31fb860094.pdfIn PDF document text
    • http://files.iriediner2go.com/uploads/1/3/2/6/132695694/619c08a21735d5.pdfIn PDF document text
    • http://files.common-ground-communication.org/uploads/1/3/0/7/130740458/b1fc3f5c7abf.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/1/0437/3735/0293/files/48759571808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1959/7981/files/amelia_bedelia_first_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0925/2250/files/49067168551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/jalozuduxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5466/9729/files/sevegikuxukurejeritadefek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/volalozuwatasivip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4312/files/marujavarawetofak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6241/8846/files/wofanizibozuxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0908/9447/files/fapaxolak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2407/9254/files/panosonic_fax_machines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/38686376690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0673/6037/files/64062179085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0708/1630/files/57937081672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/lunobidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/kumowibemejit.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_off00006f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F65 5548 bytes
SHA-256: a6a84a6351846eabf415a3ab260b62e7609329f8d0344c9af9e66d254a248074
font_01_sfnt_off00008233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8233 10112 bytes
SHA-256: 28deb7d473b301d3c67c3e8d6386a326bf7fc0b28fb488e798a954b88f8f1740

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