Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d020ff16f94286b…

MALICIOUS

PDF

41.6 KB Created: 2020-08-22 06:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8927649152fe4bf1a57e703d3ec2f2ca SHA-1: 8905b10538a4b5b3e1723dd7e10229e2aca63862 SHA-256: 2d020ff16f94286bb5a5103e87f66dd19ec8b3efcc2c6a8a45b28535125e4594
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM indicates a mass of external links, with the primary one being a redirector. The embedded URL in the document body, 'https://ttraff.ru/pify?keyword=command+prompt+font+free', is the most critical IOC, as it is the initial lure. The file likely serves as a lure to redirect users to 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.ru/pify?keyword=command+prompt+font+free In PDF document text
    • http://lovunu.neilkatzconsulting.com/uploads/1/3/1/3/131383483/4604593.pdfIn PDF document text
    • http://files.abnormalhunter.com/uploads/1/3/0/9/130969790/6974571.pdfIn PDF document text
    • http://files.sacredcircleholistichealing.com/uploads/1/3/1/4/131437423/474ea49440f.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/1/0431/8937/1029/files/wefotujejutikoxir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1255/files/38560060847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5274/files/95866764116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2684/0737/files/tozepuxurixezawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/sazonefelanefaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4856/9754/files/caterpillar_diesel_engine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/75906848773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2190/9667/files/aneurisma_cerebral_sintomas_y_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/79655835919.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 2

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_off000065ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EF 4880 bytes
SHA-256: 6f6ea6d862d03a807e7900f6e89372ac5c0525140f86f8e7083ac0dc84c1e938
font_01_sfnt_off0000766b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766B 10420 bytes
SHA-256: 875d932fb03abdb034173e195731f371bcc25e1e626a2ad78c96b4b0d087fdb5

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