Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0ea037f754f3ac…

MALICIOUS

PDF

40.9 KB Created: 2020-08-09 06:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e84c9fdd9f90afa8afb199dcbff2569 SHA-1: 9afe78b01e08b52eb82093ff6b9f3152ce96cfcc SHA-256: 0f0ea037f754f3acb4693878e76528859b8a1c7e8c850bea049d78f8750ae52a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, and one primary redirector URL (ttraff.com) that is flagged as malicious. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious content, likely a phishing lure for academic papers. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms the intent to lead users to external, potentially harmful, resources.

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=mathematical+physics+satya+prakash+pdf+download In PDF document text
    • http://files.dangribben.com/uploads/1/3/2/6/132681773/5360399.pdfIn PDF document text
    • http://files.ashwoodfertilitycare.com/uploads/1/3/1/3/131379099/tozawilefuru.pdfIn PDF document text
    • http://debubege.warlockwardrobe.com/uploads/1/3/1/1/131164250/6356422.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/1/0430/9375/4009/files/zukatogotelenofurodofodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/zejupagabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/72288822280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8187/5112/files/weight_training_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/38925702491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/nawerez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/wugano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vasopamomakazemujavinis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/xolofopopulasefewizowab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7173/1880/files/42000742796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3368/8226/files/dusiwijevexiput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7141/4173/files/80695797226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.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_off000055b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55B1 5656 bytes
SHA-256: da210028ffb34fd09c0ab94ac17779c8d01218963181d77bf392cb08ccb9e5fb
font_01_sfnt_off000068e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E6 14284 bytes
SHA-256: 37db70cdfa70820a9d61c7db3d2f71d81fe4ab11b5fdab2dba77a1a6ec02930b

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