Malicious PDF — malware analysis report

Static analysis result for SHA-256 5084d22d6c93c516…

MALICIOUS

PDF

43.3 KB Created: 2020-08-03 11:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1cd38c4ca6000bdcd78a78d0ad4704e SHA-1: 87a9f6662161d46d3f94c077d873894fdd910b41 SHA-256: 5084d22d6c93c5166a9c74c8a15864902bb0f1f6a141736eb4416e079310746f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious due to a high number of embedded external links, many of which lead to a redirector service. The document body contains garbled text but also includes the same redirector URL and several Shopify-hosted PDF links. This suggests a link farm or SEO spam campaign, potentially leading to phishing or malware distribution.

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.ru/pify?keyword=william+alexander+painter In PDF document text
    • http://files.lappeusfuneralhome.com/uploads/1/3/1/6/131607103/likozodenote_newaber.pdfIn PDF document text
    • http://files.stephengreiman.com/uploads/1/3/2/7/132740620/lotepil-rokom.pdfIn PDF document text
    • http://files.camppepper.com/uploads/1/3/2/3/132302913/1217584.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/1/0432/9770/2046/files/62696292279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/11833285923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5024/5028/files/leruzumijosegijomim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9581/7382/files/94533828956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/nolem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6277/1358/files/vemoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/ti_83_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4430/5061/files/woxejum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/78376493081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/sizinufogumefelul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3038/8642/files/25669315557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/57399606062.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_off00006c09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C09 5008 bytes
SHA-256: 69cbfe174b19ff041d036efe0eb2041716fa0340e43446b168b9e058e2907852
font_01_sfnt_off00007d09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D09 10392 bytes
SHA-256: 08a164a42ab4baee13e6ff7dd2aa393976a765590e50feb48b03db611816d338

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