Malicious PDF — malware analysis report

Static analysis result for SHA-256 19ac967fea5dbef6…

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 06:57:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb8f3ad00ce43146d3ec1b8704a605da SHA-1: 67022bd248e8c23aa405c6902ae822a7a3f88844 SHA-256: 19ac967fea5dbef6dcd233e1b4ab73cef3f00677b16569f9f5d133e38a8b2c30
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body and heuristics indicate a lure for a 'Netbeans IDE tutorial PDF', likely a phishing or scam attempt to drive traffic to malicious sites. The presence of a large number of external PDF links suggests a link farm for SEO manipulation to improve the visibility of malicious 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.cc/pify?keyword=netbeans+ide+8.+2+tutorial+pdf In PDF document text
    • http://liwop.carmenjabaloyes.com/uploads/1/3/1/8/131855997/5832216.pdfIn PDF document text
    • http://files.martelladesign.com/uploads/1/3/0/9/130968920/kilabopo-kejole-disexize.pdfIn PDF document text
    • http://files.againstthegrainyyc.com/uploads/1/3/0/9/130969045/6627364.pdfIn PDF document text
    • http://gubizuwa.donaldshoney.com/uploads/1/3/0/7/130776031/gapata-weganijisiru-ralimijifobev.pdfIn PDF document text
    • http://files.boundlessyogastudio.com/uploads/1/3/1/3/131383651/dipisegafoxi.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/1/0434/5466/0758/files/93618550938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1520/8098/files/presentation_speech_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5912/files/bijotuxulesukena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/65075204099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/mahindra_tractor_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/4633655903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/zuzenumake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/save_illustrator_smaller_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/85483270212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0278/0057/files/atmega328_microcontroller_programming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7134/files/77257715284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8131/8056/files/bienes_y_servicios_con_tarifa_12.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_off00006337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6337 5500 bytes
SHA-256: 7054d46dcc86a8ea279597ce59fb3444e3ec5fea016f33fa53e5ff4577be5158
font_01_sfnt_off000075ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75FF 10300 bytes
SHA-256: 139c29ac278571c65a9f1b1e467e3cea59f2558e8a0d7b81fd8820064aae095d

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