Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed4edd9c554e584…

MALICIOUS

PDF

42.6 KB Created: 2020-08-10 03:26:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09496850d93677643321018143714077 SHA-1: a211dc61e00f8c225fb5c9a8780787511192a182 SHA-256: eed4edd9c554e58431a434bdffbe9a943e9cfcf715aa98b4f2f82e99217d0da5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body, though partially corrupted, suggests a lure related to 'Altium designer training manual pdf'. The presence of a link farm and a high ML classifier score further support malicious intent. The primary attack vector appears to be directing users to malicious sites via embedded links.

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=altium+designer+training+manual+pdf In PDF document text
    • http://pisefa.suesessentiallife.com/uploads/1/3/1/4/131438641/4545066.pdfIn PDF document text
    • http://files.littlepaperslipper.com/uploads/1/3/2/7/132740494/visutumi.pdfIn PDF document text
    • http://files.fadreen.com/uploads/1/3/2/7/132740586/zuriwod-rugodo-dewafidumepinok.pdfIn PDF document text
    • http://files.vapeheisen.com/uploads/1/3/2/7/132710795/4899234.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/1/0436/3635/9326/files/nozezopetemuvawibojedot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1145/5645/files/67875338809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/35449145295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/us_ntp_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2490/0515/files/41439459144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9363/files/20730021893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7473/9607/files/23046393616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7403/4600/files/gubefurasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/9543083454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6767/8618/files/98881482373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lavijado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/tonuwowi.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 4

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_off0000680f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680F 5348 bytes
SHA-256: 0968a83a63b064ae98ae6ea6a6b6f61130eb8775e8827714da8f20cfc1aa7350
font_01_sfnt_off00007a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A29 10316 bytes
SHA-256: a76f29700160814a1221cef52d5375c9a50e3133a5ed3fe8c1842461fc597586

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