Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb39ad383749e6ed…

MALICIOUS

PDF

34.5 KB Created: 2020-08-10 17:51:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31dcb78dd3cb351e7e252a11a48c8dc8 SHA-1: 7f15954099dafa08793e8df1bbd2c677f66d8d1d SHA-256: eb39ad383749e6ed001c478e46b6df04b37e86c5d6e036cd3c147b45e848f344
194 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link disguised as a bursary application form. The ML classifier strongly indicates maliciousness, and the PDF is configured to link to known malicious infrastructure. The document body and embedded URLs suggest a lure to trick users into downloading further malicious 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.com/pify?keyword=bursary+application+form+pdf In PDF document text
    • http://fivaf.miniaturecupcakes.com/uploads/1/3/0/7/130738970/fufebuvokov.pdfIn PDF document text
    • http://lutewo.porttouristpark.com.au/uploads/1/3/0/8/130874474/4330360.pdfIn PDF document text
    • http://files.graceyourspace.co/uploads/1/3/0/8/130813528/6dd908332.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/1/0429/0510/8636/files/18964677658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9295/files/toyota_corolla_verso_2020_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7215/1959/files/corsair_bluetooth_headset.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/denafunir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7896/6686/files/alimentacion_saludable_durante_el_embarazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/62650691832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/395667921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/68446866163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5098/files/besame_mucho_guitar_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/gebitexevukijulederes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/48012728090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5850/files/xujimizaboluwa.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 6

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_off00004bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF2 5452 bytes
SHA-256: 193b342dccf117f6e684fae0fde045beaad619752db640fe1c1fdc166398e81e
font_01_sfnt_off00005e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6E 9088 bytes
SHA-256: 19338965e8fa37f289525097259029ccdf62190426a71045be7c5c3ff3df4f6d

Open this report in the interactive analyzer, or submit your own file for analysis.