Malicious PDF — malware analysis report

Static analysis result for SHA-256 f431ee779a25abbb…

MALICIOUS

PDF

41.9 KB Created: 2020-08-23 00:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d75d4ed7897f11772decac9f7cf7b7b SHA-1: edab5e3082fc0eeeb80ffc42dd03647cb56d40aa SHA-256: f431ee779a25abbb75b6cf4321dc33a38e6490d5ace9921433d3e5821caeca5b
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to 'ttraff.com', a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack pattern appears to be the distribution of malicious links within the document.

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=valkyrie+profile+psp+iso In PDF document text
    • http://vejug.albanyareacatholiccommunity.org/uploads/1/3/0/8/130815097/f3644eb2.pdfIn PDF document text
    • http://files.fenianfear.com/uploads/1/3/0/9/130969357/telurus.pdfIn PDF document text
    • http://gukete.earthmothermidwife.com/uploads/1/3/1/4/131437462/liwutoj_nifaxa_xuvogome_didex.pdfIn PDF document text
    • http://gupax.zoehounta.com/uploads/1/3/2/7/132741100/c07b8848ba.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/1/0432/5369/4626/files/18747951550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/40274124128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7037/1493/files/books_to_learn_spanish_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/vamavowagitifesobuwumor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8391/4654/files/bowen_university_school_fees.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7706/6145/files/libro_cerebrito_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/lupow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6806/3895/files/80647042420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/let_it_go_piano_easy_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7312/7079/files/wopanitezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6870/3398/files/all_souls_day_prayer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4353/6541/files/10740818265.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_off00006348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 5028 bytes
SHA-256: d70244b2dc07c1983263025462638d7dff57a05322f27a84caa85c05e6287ee7
font_01_sfnt_off00007479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7479 11444 bytes
SHA-256: 54a325042beb75329aa6b365788fbd832abf224edc4015982b3628b78bd38e97

Open this report in the interactive analyzer, or submit your own file for analysis.