Malicious PDF — malware analysis report

Static analysis result for SHA-256 7481cd869d8085c9…

MALICIOUS

PDF

51.5 KB Created: 2020-08-07 06:00:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a3432684c40cc6e7c447f5911846b44 SHA-1: b2e7785038575a124e020e083adf576165d5c046 SHA-256: 7481cd869d8085c9d65172cfc707b70398e82cc8d17ad26d6dc6ae2796ae383a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to redirect users to malicious sites, likely for phishing or malware distribution, masquerading as a download for 'Dnd 5e arcane archer pdf'.

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=dnd+5e+arcane+archer+pdf In PDF document text
    • http://files.redwolfreview.info/uploads/1/3/1/0/131070845/5179032.pdfIn PDF document text
    • http://files.sportsecurities.com/uploads/1/3/1/4/131453818/1033644.pdfIn PDF document text
    • http://files.littlelighthousepreschool.com/uploads/1/3/1/6/131606431/3fa92015.pdfIn PDF document text
    • http://files.bfdsandiego.com/uploads/1/3/2/7/132712093/015af4e1bc5b6b.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/1/0435/2956/8408/files/75481603255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8825/5912/files/statistical_database_security.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/simawol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/banking_regulation_act_1934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2418/7555/files/xozese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5086/6590/files/68461248097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sibubemazalomasedexikeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9558/8005/files/55892520765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1877/8781/files/28905182090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/shoulder_arthroplasty_rehabilitation.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_off000085ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BA 5156 bytes
SHA-256: 42e121dd60655e5df2ef522839567d4bf35fc66dda2158b7aa9e7c56bc4030cd
font_01_sfnt_off0000974c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x974C 13212 bytes
SHA-256: 6e74d2eed33cc0502d152497e2ff79d1b71488d01f764c58240d195296fee0fe

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