Malicious PDF — malware analysis report

Static analysis result for SHA-256 d523c1ece930d8d3…

MALICIOUS

PDF

50.5 KB Created: 2020-08-07 18:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 524c9e31122187bca4ac676b1ff69527 SHA-1: 23b625ae3a484432c06bceecbd42b48266d44112 SHA-256: d523c1ece930d8d33842d570148ffed4a02bedd8cfeb1d5f4be0e230fe398921
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for a 'big data tutorial pdf' which, upon clicking, redirects to a malicious URL (ttraff.com). This is further supported by heuristics indicating a malicious redirector link and a link farm designed for SEO manipulation. The document also explicitly tells the user to install a browser extension or update, a common social-engineering tactic to facilitate malware installation or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=big+data+tutorial+pdf In PDF document text
    • http://files.nynaranon.org/uploads/1/3/1/3/131380944/vubaferukaneluvek.pdfIn PDF document text
    • http://zanitav.geurtvanrennes.com/uploads/1/3/2/6/132682787/puvarimilib.pdfIn PDF document text
    • http://files.silverstreetlutheranchurch.com/uploads/1/3/1/4/131437576/9591de4f.pdfIn PDF document text
    • http://files.mstravelexec.com/uploads/1/3/1/4/131452922/vozapobolutevas.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/1/0429/9259/9193/files/xunavof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9538/files/zaxolamod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/89211993105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5539/0630/files/jedizogidozijevag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/89288358814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4072/7463/files/cavatina_duet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6970/2306/files/97000530853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0669/5320/files/97602188116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7020/files/mirc_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/84974570277.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 6

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_off0000879b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879B 5080 bytes
SHA-256: 342f5d328f62438161369446160a0933e63737f1eb40895a48915a29194a7fb5
font_01_sfnt_off000098fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98FB 10684 bytes
SHA-256: ad6a94e3428fa98c40d0fa8657690a65d356133e39034b2e086d562a5542aae4

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