Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd1bd0bd6f89d87…

MALICIOUS

PDF

57.0 KB Created: 2020-08-15 03:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b66d4924bc83f565a4471cf1d212c4f6 SHA-1: d31ade538db5f7ce4759f7f49637c72322e97fd6 SHA-256: 9bd1bd0bd6f89d87860f58da4e26837f5e0f02f922b9075a8f6e53d792972887
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to a URL that is disguised as a free app landing page template. The document body, though heavily obfuscated, contains the same URL. The PDF also contains a link farm, suggesting an attempt to manipulate search engine results or distribute multiple malicious 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.cc/pify?keyword=foxy-+app-+landing-+page-+template+free In PDF document text
    • http://bozujazo.mudgeeyogacentre.com/uploads/1/3/1/8/131856185/relitupepafag.pdfIn PDF document text
    • http://files.tonestencilart.com/uploads/1/3/1/3/131398010/7887303.pdfIn PDF document text
    • http://files.edwardcooperrealty.com/uploads/1/3/1/3/131380511/filise.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/1/0429/4914/8838/files/pivanokodavabigija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/3589602959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7264/2460/files/estados_financieros_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0871/1080/files/jetikelagabuguzefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/11966073343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/69241029407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/zivib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/dunevamivemuzexojadidika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/waxigulazatep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4344/8990/files/belzona_1221.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_off0000a0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0FC 5340 bytes
SHA-256: c236198666ec91f92af1ee6a012fae2a65ca74d86ae75f8727f3ff1a4ed66df1
font_01_sfnt_off0000b32b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB32B 10480 bytes
SHA-256: c98ea951fd50b7e788cb8a31586c27ae08879b58b552a6b7792cebc3a9dd9b90

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