Malicious PDF — malware analysis report

Static analysis result for SHA-256 506263ca3285c8c4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 01:05:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75ca3bc15e1b1e952e3c250037324cef SHA-1: 09d3797116d1c9f66e7ae934fa6486bc6a1939f7 SHA-256: 506263ca3285c8c4e520c19d4a407667557073b86b6bafc542e655a2020235f0
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector at `ttraff.com`. The document body, though heavily obfuscated, contains text related to a 'weekly menu planner pdf' and the URL `https://ttraff.com/pify?keyword=weekly+menu+planner+pdf`, suggesting a lure to a malicious site disguised as a document. The presence of a link farm further indicates malicious intent.

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=weekly+menu+planner+pdf In PDF document text
    • http://liluse.swirl-studios.com/uploads/1/3/1/3/131380042/065fc97.pdfIn PDF document text
    • http://files.chathletics.org/uploads/1/3/0/7/130739892/838be8f9fe2471.pdfIn PDF document text
    • http://files.theprestigemaids.com/uploads/1/3/1/3/131384025/wukunilobanorasi.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/1/0435/1829/6232/files/momagulober.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1327/4780/files/rename_file_linux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/multivariable_calculus_8th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/86890799380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7030/4935/files/medela_breast_pumps_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7779/files/draconic_evolution_wireless_energy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/50823242845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6973/0979/files/autobiography_of_helen_keller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1157/1865/files/gadewure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/house_of_the_rising_sun_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/1314829929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/54330060354.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_off00006bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC8 5188 bytes
SHA-256: 3c56f769efe79938618494d4630cd91143228f8128060cc62654cabe105d93ff
font_01_sfnt_off00007d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6A 10592 bytes
SHA-256: ce5adc508b38ef7b22b14716dfe0cfb7219a5c6ce45cba22cde8ed71e7022002

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