Malicious PDF — malware analysis report

Static analysis result for SHA-256 19e73b3ed5824d09…

MALICIOUS

PDF

39.7 KB Created: 2020-08-23 03:37:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a74efa19a9e7419364d8d3fd9b3202b4 SHA-1: eb5ba85bba269eb1ce00a75669e4183499140f54 SHA-256: 19e73b3ed5824d0965c35ab3189901487596204529b67776581b80892bd47072
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with the primary malicious redirector being ttraff.cc. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, indicating the document's purpose is to lure users to malicious infrastructure. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of the file. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of malicious intent.

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.cc/pify?keyword=anemia+falciforme+pdf+ministerio+da+saude In PDF document text
    • http://files.rabbitmountainlavender.com/uploads/1/3/1/4/131454216/menasomokovixa.pdfIn PDF document text
    • http://lexino.boreckyfruitfarm.com/uploads/1/3/1/4/131438008/26bea.pdfIn PDF document text
    • http://files.leighandbloo.com/uploads/1/3/0/7/130775623/d1a3850.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/1/0431/4470/8245/files/72024873476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/23093207494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5104/8357/files/builders_html_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1217/files/23514700960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8430/0959/files/cathode_ray_experiment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/45885670218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4666/4349/files/agenda_web_present_continuous.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1826/3448/files/sample_action_research_proposal_in_ethiopia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/fiseva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2301/4824/files/naina_song_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2547/1400/files/jurnal_penelitian_bronkopneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/83724768086.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 8

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_off00005da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA5 5288 bytes
SHA-256: b1ddf226b79cd23f7f1a895391eba5eb652ac50bc41213d52d5f37325f20dadd
font_01_sfnt_off00006f7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7E 10296 bytes
SHA-256: 18aba8fb3155c684f1780bb07791de7f3d146db14f582b76983f04425dfca573

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