Malicious PDF — malware analysis report

Static analysis result for SHA-256 18949e76b5699626…

MALICIOUS

PDF

39.4 KB Created: 2020-08-08 15:28:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdff84b39ea419adebc30195cc9acbee SHA-1: 82d5f42176854b8f62294b8c26268da6b0a66702 SHA-256: 18949e76b569962658afd7f20d5db9b107fe2288e3d421f0d8f0ab96c1be0d76
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to redirectors and SEO link farms, suggesting a phishing or malware distribution scheme. The primary redirector URL, 'https://ttraff.com/wb?keyword=seaward%20primetest%2050%20manual', is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links, reinforcing the lure. No scripts were extracted, but the structure and embedded links strongly indicate a malicious intent to redirect users to harmful 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.com/wb?keyword=seaward%20primetest%2050%20manual In PDF document text
    • http://files.ryanhayford.com/uploads/1/3/0/7/130776852/9434700.pdfIn PDF document text
    • http://files.advanceagritech.com/uploads/1/3/1/3/131380777/ffdd51c7.pdfIn PDF document text
    • http://files.sustainablerecovery.net/uploads/1/3/1/3/131380445/nipubufiv.pdfIn PDF document text
    • http://wafepinel.coloradovideoartisans.com/uploads/1/3/1/6/131606260/femuwarenumiba.pdfIn PDF document text
    • http://files.copa33.org/uploads/1/3/1/4/131411088/5999108.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/1/0431/9048/5150/files/vutediliraxerudusotap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/bobanuwitenurazugugajakul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/tomorrow_we_live_kb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/28979546301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3355/9203/files/bikatapafitesilumasak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9489/9864/files/2272859272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9517/8902/files/99443933921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2150/8506/files/theorems_of_boolean_algebra_proof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/metorozuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/backwards_capital_d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/aadhar_card_online_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53446206952.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_off00005ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB8 5568 bytes
SHA-256: c3ded3fb9bade5b81a252559c8966d28d65f00a4360c7af3ecd3d3c0b7c85013
font_01_sfnt_off00006da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA2 10316 bytes
SHA-256: 8fcf160242f45ce3a0ef7f2120ecf0a8cf0656a4d6532a1f7e038489924a8912

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