Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb9d199095324ade…

MALICIOUS

PDF

54.2 KB Created: 2020-08-05 02:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fb8346ce163aac870643fdfb8ac3a8f SHA-1: 658ed6d6a077954ef3d7f8e5d4dc63c8ced11267 SHA-256: fb9d199095324adee9f4cd07c2bb2d7585ff2d8dcce7eab09851adca946b48cd
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to suspicious domains and are flagged as malicious redirectors. The document body itself is largely obfuscated but contains references to the URLs, suggesting an attempt to drive traffic to these malicious sites. The primary attack pattern involves a link farm designed to redirect users to potentially harmful content.

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=physiology+of+vision+and+hearing+pdf In PDF document text
    • http://files.iolaire100.com/uploads/1/3/2/8/132815181/dureginigozix_fudodadug_piwapetita.pdfIn PDF document text
    • http://files.thepoeticevangelist.com/uploads/1/3/0/7/130776460/dubak-gikisovexe.pdfIn PDF document text
    • http://files.carinaripley.com/uploads/1/3/1/1/131164386/fuwino_nuxaresade_jikavewus.pdfIn PDF document text
    • http://rapeva.tminz.net/uploads/1/3/0/8/130814535/6dfdf418dbd.pdfIn PDF document text
    • http://files.hoofs2010incorporated.com/uploads/1/3/0/8/130874115/74e06b42d4d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1136/7331/files/sparknotes_the_iliad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7542/6722/files/12265836866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/new_headway_academic_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6536/0027/files/48809856262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/canon_powershot_elph_160_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6899/7283/files/nenanobitoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5122/files/91010717127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5053/9940/files/american_streets_address.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/litufukabisisaninobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/30768564357.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F8 5176 bytes
SHA-256: d78447464ec0e3ed10f4e1cdfd7cae86d8b27096b294938b6831344f65fd4a05
font_01_sfnt_off00009987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9987 10480 bytes
SHA-256: 6faad4925041c8f76d6c87227c65594a831fd4d3d2ae9b1856f45c23849f46e8
font_02_sfnt_off0000bd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD3C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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