Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6f7282427703678…

MALICIOUS

PDF

36.9 KB Created: 2020-08-25 13:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45a09206cd21c6432c3ceb499be38e11 SHA-1: 64380416db1fe97990923414ff548dd83a760c2a SHA-256: f6f7282427703678afcd3fa6c27423777f3aa589308fc69b02b0ae59433eece8
194 Risk Score

Malware Insights

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

The PDF document contains a mass external PDF link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=conformational+isomerism+in+cyclohexane+slideshare, which is likely used to redirect the user to a malicious site. The document body text, though heavily obfuscated, contains this malicious URL, suggesting a social engineering lure disguised as academic 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=conformational+isomerism+in+cyclohexane+slideshare In PDF document text
    • http://files.valmalencoalpina.com/uploads/1/3/0/7/130738870/98bc027719b2d6.pdfIn PDF document text
    • http://files.karmicmoksha.com/uploads/1/3/2/7/132712050/mezan.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/1/0429/6137/1290/files/12745503007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/10387275891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/pubadutizimomima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/fortune_at_the_bottom_of_the_pyramid_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/medarovadujagowurevasote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/66890871067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/vibep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/79894841610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/69072486184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/74556815719.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 4

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_off000051f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51F3 5336 bytes
SHA-256: dcd544ba01df2e3c85df82391e2bcea08112795556cb07568918504792560c4c
font_01_sfnt_off000063eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EB 10164 bytes
SHA-256: c10c8fc5e9a9e34e242826ab66b3cdb70a81ce3cfcd7922ad00ea20ae5bb843d

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