Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d433515c454f704…

MALICIOUS

PDF

46.5 KB Created: 2020-08-15 00:22:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef70bab6f84e5eadf20f9c559345e44c SHA-1: f47844c9d08140bbda6da293646a128e1160cf43 SHA-256: 0d433515c454f70443e9f460e6ac2b2cdfed30c7a7272a5f458a84ffa2797fd8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating an attempt to lead users to malicious content under the guise of academic material. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple embedded links to external resources, including a known malicious redirector, supports this assessment. No scripts were extracted from this sample.

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=landforms+of+fluvial+erosion In PDF document text
    • http://narulux.lifeistooshortnottobeirie.com/uploads/1/3/1/4/131437812/xubekaxuse.pdfIn PDF document text
    • http://files.deserthillsdrive.com/uploads/1/3/0/8/130874205/nujefisof_vewabitep_womebisexaka.pdfIn PDF document text
    • http://files.comedianambrosejones.com/uploads/1/3/1/8/131872054/09913.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/1/0430/1121/1425/files/93338773852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/38434214002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4271/2221/files/factors_affecting_academic_performance_of_working_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6331/files/erythromycin_ophthalmic_ointment_davis_drug_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/58438316105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8138/4604/files/sokojurukagobesozedilorof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7060/3932/files/5443465856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/bafg_antrag_nrw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0568/1557/files/maxusurudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4241/files/gisefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8387/3942/files/gidabumusosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/nuwojozubuterusakujaku.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 7

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_off000079a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A2 5056 bytes
SHA-256: a28b5e74a940d1975a2b04bcbee512c76bc926b6ebf221815ba8f96a5a5b3977
font_01_sfnt_off00008ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC3 10052 bytes
SHA-256: 61fe114e212a60bfa1d3d3de5ec017d0c4ca3b5f65d843a9444b5902eeaae480

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