Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6bce842d25ab79f…

MALICIOUS

PDF

46.0 KB Created: 2020-08-21 12:32:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3e5395d70f4d8f2ea4a8f6551f01ee2 SHA-1: ba29d605f4293b34a1832d37e7bf4fc6451f23f9 SHA-256: d6bce842d25ab79f9ab74c9c69ebf4af6fda04c0ac4155502b3e627a2631352b
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link that redirects to malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains a string that appears to be the same URL. The PDF also hosts a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection strategy. The presence of a call-to-action phrase further supports a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=financial+proposal+template+doc In PDF document text
    • http://files.sitesofpassage.org/uploads/1/3/1/0/131071240/455213.pdfIn PDF document text
    • http://files.nightsupakaroa.co.nz/uploads/1/3/2/7/132712358/ff45bb4f3b44d67.pdfIn PDF document text
    • http://files.troop323bsa.com/uploads/1/3/1/6/131606636/4660325.pdfIn PDF document text
    • http://jatizu.josefjakobs.com/uploads/1/3/2/7/132740978/xukuvobirizoj_supitojepubu_nuliwozin_bisegodezevosiw.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/1/0433/6861/1989/files/jusiredubopurut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/munaxatosefuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/sazoxifigefiselenevul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2053/2386/files/mandatory_minimum_sentencing_guidelines_georgia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/26605072644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6335/files/tunugirotimipegevedazijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1129/0782/files/xibilubedizaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3274/5896/files/ximirigepewerizevibew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6204/2529/files/pivozetijurelujaborarupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7085/7122/files/24640205906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8079/4780/files/liver_vascular_malformation_radiopaedia.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_off0000755c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x755C 5176 bytes
SHA-256: 27f518fbc9316c6d78da9fe70fb0e0ad87869b4d701e6436b06077bc6ec7985e
font_01_sfnt_off000086ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86CE 10504 bytes
SHA-256: 0e78ed302073315319ba9f69af10601113f06e31489c12d4728ac94255b3c50a

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