Malicious PDF — malware analysis report

Static analysis result for SHA-256 f927c049eec2b191…

MALICIOUS

PDF

39.3 KB Created: 2020-08-20 09:05:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb9bd7f860c658abba75a9ffeeef074e SHA-1: 069a0633c75d677165978086eca3553c6ff679c6 SHA-256: f927c049eec2b1912469a0cc3fd7e43c35dd7c8160328704a1f4e41cd02f355e
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL pointing to ttraff.com. The document body, though heavily obfuscated, contains the same malicious URL and other benign-looking Shopify URLs, suggesting a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed 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/pify?keyword=comparing+decimals+to+the+thousandths+worksheet In PDF document text
    • http://files.mygara.com/uploads/1/3/1/8/131871614/3326475.pdfIn PDF document text
    • http://nutujik.vedvalmiki.com/uploads/1/3/1/4/131437607/6c0df14e889.pdfIn PDF document text
    • http://modom.amymckinneydesign.com/uploads/1/3/1/3/131383544/tirev-wofekuxizus-melulavoleg-vekeneliwefibe.pdfIn PDF document text
    • http://dalud.slk-photography.com/uploads/1/3/2/3/132303238/xisazatorosojokin.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/1/0433/0127/3758/files/45503770195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6010/9210/files/tunajujokesewuxire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8136/7712/files/anima_weapons_ffxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/jezoziwiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4737/9356/files/23213957132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6260/6489/files/3d_cartoon_wallpapers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/zefelavapobegabewunosoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6472/9512/files/fajiwolodivudikezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6723/files/working_principle_of_digital_clock.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 5

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_off00005b9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9B 5548 bytes
SHA-256: 12ef551e18a44220cc5739e2d3e8c89d5ad396b46d3e0072cd51bd02f40ce479
font_01_sfnt_off00006e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E56 9980 bytes
SHA-256: b7383ae237144604ada92de06586d0144d6314649402784921e785c695bd1335

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