Malicious PDF — malware analysis report

Static analysis result for SHA-256 1346d4a45769ac99…

MALICIOUS

PDF

43.0 KB Created: 2020-08-21 13:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b8396e573ec73e1d782895a6d0ebbc2 SHA-1: a4753f4161897e984bedb1a851a815619d4e213f SHA-256: 1346d4a45769ac992f72e5622e9800f1badfaf2dde4a27d0630a9297c02c8b14
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for SEO link farming. The document body, though partially obfuscated, contains the URL https://ttraff.ru/pify?keyword=diagnostic+spelling+assessment+pdf, which is also flagged by heuristics as a malicious redirector. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or malware distribution.

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.ru/pify?keyword=diagnostic+spelling+assessment+pdf In PDF document text
    • http://files.antoniagoodfellow.com/uploads/1/3/0/8/130874567/410355.pdfIn PDF document text
    • http://kowituk.reedcooper.net/uploads/1/3/1/0/131070718/dosekeweladajopu.pdfIn PDF document text
    • http://files.ffylloniaid.com/uploads/1/3/2/6/132695714/wogunepu_pexoxegovupidab.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/1/0432/0349/4043/files/keveliwananuboximif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/7508585817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6537/6919/files/tipos_de_antiacidos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7641/files/dananumax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0390/2112/files/noreti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2717/7380/files/80531350048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0872/8993/files/64013106493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/simplex_2001_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2906/8949/files/62121904384.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 3

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_off00006a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9E 5376 bytes
SHA-256: 84b43025e5ebcaac010597d8c2319946ddfe3286c02134e8b972ba8b83519c0f
font_01_sfnt_off00007ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE1 10160 bytes
SHA-256: 667f3ffcce96bb45f82d95d176c33c17cc1b6d5d9e086185c423d88ca6557151

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