Malicious PDF — malware analysis report

Static analysis result for SHA-256 502d49199952aad6…

MALICIOUS

PDF

65.6 KB Created: 2020-07-31 22:09:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3ed800d81686007e7daf87356141097 SHA-1: b35ac2f1ecaf1586bf1ef8c2733aa347e7bb130e SHA-256: 502d49199952aad6361413c485bb15240dab6906f69e54cc64b0b1fa55afbf20
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to shopify.com, but one critical link directs to a known malicious redirector. The ML classifier also flagged this PDF as malicious. The primary attack vector appears to be a link farm designed to redirect users to malicious infrastructure.

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.com/pify?keyword=japanese+numbers+hiragana In PDF document text
    • http://files.kinderlions.org/uploads/1/3/1/4/131453384/1fbe65b.pdfIn PDF document text
    • http://files.breakingruleswritingcompetitions.com/uploads/1/3/1/8/131856492/b6d34c.pdfIn PDF document text
    • http://files.lab302.net/uploads/1/3/1/8/131871535/xoxonizoguwuw-vasexaboxukil.pdfIn PDF document text
    • http://files.patgreenwellartist.com/uploads/1/3/0/8/130874201/a948f7bf2d9967.pdfIn PDF document text
    • http://files.geraldinepilgrim.com/uploads/1/3/2/8/132815346/6780435.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/1/0429/6481/1935/files/rojoxanuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/rusafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/99013155323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6074/8695/files/8671422118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71419102660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/mamelitiwimozavusitiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/xukod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5866669006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7991/files/luludutonelogubakusukufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/9749243773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9187/0375/files/xomoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/busiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5068/7903/files/kolubojefatumukurumeti.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5D 18224 bytes
SHA-256: 5c170bdca210f73c0691eff9a5b0ec70a41eefe37162d98c3c0007f03ddde66f
font_01_sfnt_off0000b795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB795 5332 bytes
SHA-256: cf6d4504cec29f81dd3ef08b234d1819abc904b72d4018825358c1f7c261b310
font_02_sfnt_off0000c983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC983 14700 bytes
SHA-256: acf548e388a67a2fcec31acedfd228643658276c61eddb1d315bdef425e341a3

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