Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f19855c5910633a…

MALICIOUS

PDF

38.0 KB Created: 2020-08-18 22:39:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 356ec17b4d80dceb07d4e1f4a0c21d7b SHA-1: 6b9ebda5d8f518f0a9c765a258c7d19423752fae SHA-256: 0f19855c5910633a6d87a4e465fb8b221c1ba28c8005e6eb2f697b5fcfa72a8f
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) disguised with a seemingly legitimate search query. The document body and heuristics indicate a link farm strategy, likely intended to phish users or lead them to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through a social engineering lure.

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=science+activity+3+head+on+collision+answers In PDF document text
    • http://files.mammas-amorepasta.com/uploads/1/3/0/8/130874627/besiramo_wadifevive.pdfIn PDF document text
    • http://files.palmspringsapplianceservice.com/uploads/1/3/0/7/130776162/164c5cc.pdfIn PDF document text
    • http://dagoboj.nwextremeoutfitters.com/uploads/1/3/0/9/130969723/jorodugu.pdfIn PDF document text
    • http://piseva.totalfireprotectionsd.com/uploads/1/3/1/3/131383613/dad7eb8f3.pdfIn PDF document text
    • http://fimikax.another-bright-idea.com/uploads/1/3/1/4/131452958/dekuseve.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/1/0438/8149/6744/files/megikori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4353/4486/files/46572877829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/fowobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/cantigas_de_amor_e_amigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/carnatic_music_violin_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/gajulitax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4311/9527/files/dupud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/facebook_ads_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4660/6760/files/for_each_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9496/2332/files/25_branches_of_biology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86526592296.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 3

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_off00005624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5624 5548 bytes
SHA-256: 008dc147307b5c8420e3eb90d1f340394cdab7a1c2b8280d5174f7165c925b72
font_01_sfnt_off000068fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68FD 9964 bytes
SHA-256: 42e3f165ed6d9e9fdd7f88700d24259acc614d5b822b7ed8fba745bcfdb4de57

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