Malicious PDF — malware analysis report

Static analysis result for SHA-256 78bc6d8f9491c8be…

MALICIOUS

PDF

53.6 KB Created: 2020-08-23 11:20:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d6401da4516882bba68d962c98ef842a SHA-1: ddec6de5c355ee9d36047db24a7612291e401000 SHA-256: 78bc6d8f9491c8be9f1caa986f7373a73b1b80c7b71cb2eadc9ed049e411bb42
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.ru/pify?keyword=etre+anticonformiste+definition'. This indicates a likely phishing or malware distribution attempt. The PDF also contains a link farm, suggesting SEO manipulation to drive traffic to malicious sites. No scripts were extracted, but the presence of malicious links is a strong indicator 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.ru/pify?keyword=etre+anticonformiste+definition In PDF document text
    • http://files.snohomishvalleygolfcenter.com/uploads/1/3/0/7/130740522/dojefawexe-lupobujonef-damelukatod-tifujodo.pdfIn PDF document text
    • http://files.adamhager.com/uploads/1/3/0/7/130740524/19bdbcc11b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2952/6690/files/nekesonunakafezigok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/wakoxotefanotafinixakixeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8725/0087/files/gipaposujibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/complete_guide_to_embroidery_stitches_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4647/6708/files/gagazebelekikavavidafoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/96315347798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6935/5670/files/wukapasoleki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8752/7078/files/besanoruxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2421/0326/files/68160225879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0199/8504/files/equivalent_fractions_and_decimals_worksheets_4th_grade.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D0 4880 bytes
SHA-256: eb8c7d3101efb499f627e87200e342f50730cc81cf290879e8042cce66c0b914
font_01_sfnt_off0000923e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x923E 12580 bytes
SHA-256: 7de2b59de7658715bdba55950d03c9e850f11967a725c2d74e3d73a2fe0cd580
font_02_sfnt_off0000b97b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB97B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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