Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bb277cc60fa1309…

MALICIOUS

PDF

45.7 KB Created: 2020-08-06 20:59:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d901795235f5ea3bbff2011d3210554 SHA-1: c89ce7df21b079bfb950e262621812a73d5c03d2 SHA-256: 8bb277cc60fa130954e4f7100e301dcf8b5d351e003acee5ff20da79026b90bc
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to a PDF title and mentions 'wkhtmltopdf', suggesting it was generated by a tool. The primary malicious indicator is the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, pointing to 'https://ttraff.cc/pify?keyword=arrows+structures+and+functors+the+categorical+imperative+pdf'. This indicates a likely phishing or malware distribution attempt via a deceptive link.

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=arrows+structures+and+functors+the+categorical+imperative+pdf In PDF document text
    • http://xulabe.lataca.co.uk/uploads/1/3/1/8/131872055/batojuduma-kebiwuw-divunibip-fogowosiwopeb.pdfIn PDF document text
    • http://files.newbeginningswalworth.com/uploads/1/3/0/7/130776841/tunanazopab.pdfIn PDF document text
    • http://bebuk.opencirclehealing.com/uploads/1/3/1/4/131454012/3b7ff4dfb90.pdfIn PDF document text
    • http://files.deepdivefantasyfootball.com/uploads/1/3/0/7/130740196/pajaxalesi_tegimomitari.pdfIn PDF document text
    • http://files.bloomingfulbirths.co.uk/uploads/1/3/0/9/130969371/4362299.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/1/0433/0032/3478/files/jakodaboji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/1082838963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0992/files/design_patterns_tutorial_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2523/6121/files/sawusurokero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/issuu_download_link.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5703/5929/files/21194257056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3311/5289/files/890258373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/85074952869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/51690798081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0816/3993/files/29811098090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/tevov.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_off0000724f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724F 5708 bytes
SHA-256: b31b04554c1ccf86fb6031207de8873a096d4d621c8d0e97434cb4ad6d16878d
font_01_sfnt_off000085ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AD 10732 bytes
SHA-256: 0b42523385caa4d137942567643e8a0c0ed3a7a558e799e864291975a3aa83f4

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