Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3445d0ebfd7a2e3…

MALICIOUS

PDF

34.2 KB Created: 2020-08-09 16:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd1f8911a47c09233cc6dfc2b774ea98 SHA-1: e0e1274ab65e56ea719ed22308b29cac851865ac SHA-256: e3445d0ebfd7a2e389b2754c8ef67b10d507bbffa97d30f2ebdb1c2d21ccb4ea
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. It also features a link farm, suggesting an attempt to manipulate search engine results for PDF downloads. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be a lure to download content via a malicious URL.

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=canzoniere+magnum+pdf+download In PDF document text
    • http://files.vedranpasalicart.com/uploads/1/3/1/1/131164081/vodepubonigi-susesow-kaxamil.pdfIn PDF document text
    • http://files.branperf.com/uploads/1/3/0/8/130813887/7164095.pdfIn PDF document text
    • http://files.educateachildinpakistan.org/uploads/1/3/0/8/130874495/c4256cba7f.pdfIn PDF document text
    • http://files.slow-studio.com/uploads/1/3/1/1/131163643/xasubasozuv.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/1/0432/6768/6558/files/37357023848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/rifelodar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8280/files/2574090758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/49163139263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1909/2647/files/rukugoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/xizoxagulinibis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/72311653829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6720/2974/files/wubukekegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/mufepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6530/files/16024792480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/86751814997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/2012_buick_lacrosse_owners_manual.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_off00004867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4867 5228 bytes
SHA-256: 209f0add0d9d69496e7ff03d72be356ee0ae629c2d645c3f17dfa83ae3830031
font_01_sfnt_off00005a35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A35 9904 bytes
SHA-256: 4bf1123e6b74cab7b97d859d05826f2f907f461bdbccb6520f7268fbdfa4b004

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