Malicious PDF — malware analysis report

Static analysis result for SHA-256 6005fa8bf76ba1c2…

MALICIOUS

PDF

48.0 KB Created: 2020-08-11 14:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de89c1270e12a665004ed28eca1cb688 SHA-1: 1356979656ee048a79e5ca0aace0fec87ffde19c SHA-256: 6005fa8bf76ba1c23520e741f0802f1266d42b347c7e79beb6357ea4a2131ca5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to an SEO redirector, which in turn points to a malicious URL. This suggests the document is designed to trick users into clicking malicious links under the guise of free downloads, likely leading to further malware or phishing. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a link-farming or redirection attack pattern.

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.ru/pify?keyword=fungsi+pendidikan+islam+pdf In PDF document text
    • http://files.volunteerteachkenya.net/uploads/1/3/0/7/130776521/2134470.pdfIn PDF document text
    • http://files.engineering-philosophy.com/uploads/1/3/1/4/131453733/3879338.pdfIn PDF document text
    • http://budup.buggybarnmuseum.com/uploads/1/3/1/4/131438800/cbe68611d17ce9.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/1/0431/9330/3204/files/zelupagukuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/gamoredejal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/courriel_web_videotron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/nosaxisaxatafojimekujal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/proform_xp_160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7484/files/barbara_cartland_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4314/files/metodologia_dela_investigacion_en_psicologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2176/9627/files/air_washer_system_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8950/7990/files/poison_5e_condition.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_off00007e0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0A 5284 bytes
SHA-256: a2abd7077918d6a08c64bff2c2f2c24ca114b4d8aef11478a1f81304c3cc07ca
font_01_sfnt_off00009003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9003 10272 bytes
SHA-256: 85a441bc6f56316999692f775234061aaff7b194a9d7e5251183642a6937aa29

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