Malicious PDF — malware analysis report

Static analysis result for SHA-256 6478a217e11a38b7…

MALICIOUS

PDF

39.4 KB Created: 2020-08-10 19:26:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8229c7d63ae99f89ecdfae518494e257 SHA-1: 637598cde8931d3f8639fe03683efcadf6fe3a93 SHA-256: 6478a217e11a38b7ae5376df739870afb3092d8a78ec16a5d4a953071394d440
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though obfuscated, contains a URL that is also present in the heuristics and IOCs, suggesting a phishing or malware distribution attempt. The presence of numerous external PDF links further supports a link farm or SEO poisoning tactic to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=american+sign+language+alphabet+printable+pdf In PDF document text
    • http://files.livelaughlovedream.com/uploads/1/3/1/8/131857199/4618978.pdfIn PDF document text
    • http://jipij.kingdomtransformationchurch.org/uploads/1/3/2/6/132681504/jefejo.pdfIn PDF document text
    • http://files.oxfordstation.pl/uploads/1/3/0/7/130739218/lirabuwawar.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/1/0428/9835/8432/files/70945418412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/5932150133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6251/8182/files/41579270623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/wufuderiwenizowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/lomamuvaviwezolazil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0764/7639/files/denonerifamotuwamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/54564440746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5049/2316/files/jexadaxiripof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/gojoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59854739703.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_off00005b84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B84 5700 bytes
SHA-256: cbf820367def29bdfbf66c0ab6ce98a4a627e043277593452e0fea75b3e9d46e
font_01_sfnt_off00006ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA4 10012 bytes
SHA-256: 7952aac0700fa70615910827b208d87a1aa1ac3a9e7fb219953878c38fd437c9

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