Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a85fbfcc3fd69f9…

MALICIOUS

PDF

55.3 KB Created: 2020-08-03 01:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d84cdf933f8301eb0996ced6cd96ca55 SHA-1: e3fb52ae86fed9962cf040cc93875ef59abb42bb SHA-256: 9a85fbfcc3fd69f967a02e3102d3367cc217d8bf235343c736a1c0aa3a0bba57
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same text as the URL's keyword parameter, suggesting a social engineering lure. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be directing the user to a malicious URL.

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=stop+right+there+criminal+scum+copypasta In PDF document text
    • http://files.mynativegardenoasis.net/uploads/1/3/0/7/130776228/xipapunabokibisif.pdfIn PDF document text
    • http://files.adriancc.org/uploads/1/3/1/6/131637679/javiben.pdfIn PDF document text
    • http://files.victoriambarranco.com/uploads/1/3/1/3/131381095/dbab0e60e76669.pdfIn PDF document text
    • http://files.masonglobalmanagementllc.com/uploads/1/3/1/8/131857756/2378594.pdfIn PDF document text
    • http://files.outstandingstart.com/uploads/1/3/0/7/130776673/jezowunofipegumu.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/1/0433/0687/7080/files/45397061855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/xapofapidibonozixugita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5820/7643/files/fulisijuzen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0811/5366/files/boluxomegerofewemidobadan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/84832268924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3262/5831/files/50706564134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8733/9413/files/dokunurigolesorela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4248/0021/files/besexiwesapemalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6822/6725/files/rajumow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/vizisag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/western_snow_plow_troubleshoot.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_off00009a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A20 5552 bytes
SHA-256: 8504290faa406f81b591d36b759ee411b4e4e008538000584526c4d935969518
font_01_sfnt_off0000ace3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACE3 10288 bytes
SHA-256: 18ca258f3545c6bf507d39341b72032ec68ed56210f2d68f9dcd2896b8973c69

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