Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c017f56b9a82a4d…

MALICIOUS

PDF

42.8 KB Created: 2020-08-14 15:10:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86a9794ff55e938a9bc2fba486d98b77 SHA-1: 4f2d7c7d402a8c754a5bab1babff7c07e971abb4 SHA-256: 9c017f56b9a82a4d37fa14e49a100afb434d3c32de40f78ec95dbd12f79d538c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for educational content. This suggests a phishing or social engineering attack where the user is tricked into visiting a malicious site by clicking on 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=division+worksheets+word+problems+4th+grade In PDF document text
    • http://files.3dbikefit.com/uploads/1/3/0/7/130740625/maxiwudimaned_xunumakorip_zenunigak.pdfIn PDF document text
    • http://files.smallbusinesscapitalus.com/uploads/1/3/1/6/131637723/xulifurokisuwe.pdfIn PDF document text
    • http://files.westernwilcodemsclub.com/uploads/1/3/1/0/131070452/e2180cb5.pdfIn PDF document text
    • http://kanebixot.ktrpo.com/uploads/1/3/0/8/130814328/2104394.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/1/0441/0392/5912/files/matazix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2312/2077/files/jesasidasowuwazekum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/54156798915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9285/files/maserinijituwulude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1939/3448/files/zagaloviritudopotokig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5311/1704/files/eldar_codex_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bojakotipizijogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/lukadazededinabatususubux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/restaurant_business_plan_presentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2287/6826/files/95605351697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3785/9735/files/zoronor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2597/9797/files/kebufamarukemuwupuguk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0586/9208/files/zigibelefiti.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_off0000695e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695E 5816 bytes
SHA-256: 1fcce565e0901d5ffcc04c49728a0b3970736100cc53b491f93e754316af8600
font_01_sfnt_off00007d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D18 9544 bytes
SHA-256: f5fb4756428b119478781c46ecc0b7bc1d2f6680b91261a2c990bf55f3e30889

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