Malicious PDF — malware analysis report

Static analysis result for SHA-256 63bd6860dc8561e5…

MALICIOUS

PDF

84.7 KB Created: 2020-08-07 21:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7d734937ae733267c7d6f13d37300f3 SHA-1: 66dbd15946d23c8b22918312572f33efb08a1d89 SHA-256: 63bd6860dc8561e561d6ca6e7640c635fc7397f5078fbb4fa1a9a42680e2950e
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, disguised as a technical analysis document. The heuristic firings indicate this is a malicious redirector and part of a link farm, likely intended to phish users or lead them to 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=technical+analysis+from+a+to+z+pdf In PDF document text
    • http://files.healthyforestcoalition.ca/uploads/1/3/0/8/130874143/f57d766ecdb9fe7.pdfIn PDF document text
    • http://files.elizabethsboutiques.com/uploads/1/3/1/1/131164431/2732552.pdfIn PDF document text
    • http://files.hoothootpost.com/uploads/1/3/2/6/132682282/5709165.pdfIn PDF document text
    • http://files.3sistersinsrilanka.com/uploads/1/3/1/3/131380745/punegoz-rukakulome.pdfIn PDF document text
    • http://files.missouriinstituteofhypnotherapy.com/uploads/1/3/2/6/132695543/8275253.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/1/0440/3052/5590/files/gomugudebogafutiwesosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/load_json_file_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/manual_j_residential_load_calculation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/xaxeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80787326618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6778/2808/files/87695194147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/90005391204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/public_policy_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/foraminifera_bentonik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/lominger_competencies_list.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_off00010e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E35 5496 bytes
SHA-256: 0b80a6761d3f4f678c3e15562d63e16f99135ef98e2605f86c608d47afed89cd
font_01_sfnt_off000120cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120CF 10652 bytes
SHA-256: 54769bfd317f3d2ab47968761faca117511d395c2ea4b0a08c0ff95dd3eef2b8

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