Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9225440068a19d8…

MALICIOUS

PDF

58.2 KB Created: 2020-08-11 09:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dcef9d05c51bc4242b16835f99544bcf SHA-1: 4184baa031937b775e2f1739c90a9828c16a3a15 SHA-256: d9225440068a19d8eb8049fb59ed30ac97f871de64e80b5881c758faabd30272
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, another critical heuristic indicates a PDF link farm, suggesting a common tactic for distributing malicious content. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

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=agamemnon+pdf+espa%25C3%25B1ol In PDF document text
    • http://nodewo.thenutritionists.ca/uploads/1/3/1/3/131383314/cd8c5f87f3.pdfIn PDF document text
    • http://jozifawo.ethsjapanese.org/uploads/1/3/1/0/131070487/sevovofareworo.pdfIn PDF document text
    • http://files.twofriendsmetalsculpture.com/uploads/1/3/1/8/131871902/a5f3d3457.pdfIn PDF document text
    • http://nebejok.somethingsomethingtheatre.com/uploads/1/3/1/8/131871674/9c66a04.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/1/0433/9249/9877/files/32353984541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/devasuvirowupugevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4567/5420/files/xujudajanar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/segekexika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/main_accounting_concepts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/wotesefawuwalabofed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5208/9000/files/50975523548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/90657617693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5236/files/pubog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3666/3208/files/pupolojedotilitesuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8117/files/pumerobadeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6957/1233/files/beguwubapaxuwigimosek.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_off0000a12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA12C 5464 bytes
SHA-256: 8db1b02b72a357b56c1d29d933a60b8b4e94371aaa7f86045ea8fead5d2e2405
font_01_sfnt_off0000b37d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB37D 11700 bytes
SHA-256: 64d37d267a2ab7426f963d82f4422e49f772e076bfcbe46528ec6334ac51601d

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