Malicious PDF — malware analysis report

Static analysis result for SHA-256 045ab6c945287964…

MALICIOUS

PDF

32.0 KB Created: 2020-08-24 02:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d33281b2b8ddc309e3ef32814f532a1b SHA-1: d1319ad8829e5997ab8dafcc5992690d22e514ee SHA-256: 045ab6c945287964fd19043cdaa41d2c9a01afa5728e456dc83e3b7948abc86a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it's a malicious redirector. The primary redirector URL is 'https://ttraff.com/pify?keyword=ionic+bonding+lewis+dot+structure+worksheet', which likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to academic topics, suggesting a lure to trick users into clicking the malicious 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.com/pify?keyword=ionic+bonding+lewis+dot+structure+worksheet In PDF document text
    • http://files.heartofthewest.org/uploads/1/3/0/9/130969254/9116138.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/1/0431/0319/1194/files/free_al_quran_indonesia_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/33064132470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9074/files/prove_that_every_convergent_sequence_is_bounded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6411/9716/files/adaptive_optics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6439/1845/files/14765312227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1760/8090/files/begrijpend_lezen_groep_8_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8100/6246/files/relacion_renina_aldosterona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6137/9226/files/talent_acquisition_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/avery_5162_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3119/8886/files/umt_cohort_datesheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5978/1538/files/kevisize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4652/6376/files/26464103663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/rafagakaxamiza.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42CD 5224 bytes
SHA-256: 768cff8aec4e137aa767e38edc5196fc13d46bbd9751ab448538065bff975cf5
font_01_sfnt_off0000549e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x549E 9004 bytes
SHA-256: 7321ddb068dfbc0b3bf9924eebf5178af2f3786fe4c16b3e7e806a50586ef52e

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