Malicious PDF — malware analysis report

Static analysis result for SHA-256 516ddea9fa0e23df…

MALICIOUS

PDF

60.8 KB Created: 2020-08-15 04:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7280ce9af2426cde5e9dca31ef78429a SHA-1: 0974346c30c40b94d0a5c7e97c7037ea0febcc23 SHA-256: 516ddea9fa0e23df7df8883b27fe672f2764a1e8d0ddf3eac7a6bcb1d970c953
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=captain+america+civil+war+spiderman+song'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one to 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to lure users to malicious infrastructure.

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.cc/pify?keyword=captain+america+civil+war+spiderman+song In PDF document text
    • http://files.pakpourlab.com/uploads/1/3/0/8/130874317/tasim-pumatox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4581/7253/files/advanced_java_mcq_questions_with_answers_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/learn_esp32_with_arduino_ide_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2365/7118/files/alternator_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9264/5790/files/airline_alliances.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5016/2581/files/setenodojosegiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0586/9213/files/comparing_and_ordering_decimals_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/jabra_speak_510_spec_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9087/7339/files/669073122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/cabin_crew_safety_training_manual.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA370 5356 bytes
SHA-256: aea8324563553ed241777d3bf04d3b00410701ccd6d5606dc4cf6a0bd8f531e7
font_01_sfnt_off0000b59d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB59D 10024 bytes
SHA-256: 1ad346ea1e1655c4afba2a341c6be20b1dc72abc31a18a69584415f8e6415434
font_02_sfnt_off0000d7fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FA 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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