Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a0f349de1e96be5…

MALICIOUS

PDF

41.5 KB Created: 2020-07-30 08:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be8ab4bb0c5d195eab7724440c55c2ed SHA-1: 50bae5f415e6baf5ddbde8f10881efe590750ad8 SHA-256: 5a0f349de1e96be5dbf665d41af63ff14cf63a578d2e7bad820faf3d419af053
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains text related to 'Bus 118 trier pdf', which aligns with the embedded URL. The primary malicious IOC is the ttraff.com redirector, which likely leads to further 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.com/pify?keyword=bus+118+trier+pdf In PDF document text
    • http://files.peachfuzztranslations.com/uploads/1/3/0/9/130969986/b58c0c94bf0.pdfIn PDF document text
    • http://files.usasportsassociation.com/uploads/1/3/0/9/130969826/zadogez.pdfIn PDF document text
    • http://files.mrshansen.net/uploads/1/3/0/7/130739991/4814b061f.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/1/0439/1577/2059/files/binipinanik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/76976813744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/83794298616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6826/files/95195067880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/dorubeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/5005798437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0560/7062/files/49218676444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/8997/files/pewiwakej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/fuvigedeganap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3511/files/gudosiwaxexobipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0568/9504/files/45002807195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/xepisugofurexikidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7310/1214/files/56428931656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6780/8667/files/zulaketiwamokotisef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/sakoxujosuzozireki.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_off000065d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D9 4756 bytes
SHA-256: 16074c88de3bd6fe323e2f66fd792503f1fbd5452dccccd3393606d757448b02
font_01_sfnt_off0000761c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 10108 bytes
SHA-256: ef6e57eea1894cf2c6eb0fa3591cd65c4e1ac8fbd8854dc2dc525046312398cf

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