Malicious PDF — malware analysis report

Static analysis result for SHA-256 df266f760a21267a…

MALICIOUS

PDF

41.9 KB Created: 2020-08-12 05:18:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 124234561fa0c18fec7b5595942f4e90 SHA-1: 583de33f6ab6f545101f2f1b43121db2193411c6 SHA-256: df266f760a21267aca64f1587c69a3e9dd0bb922d320dc00433ecc8e49407e3e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=angielski+w+t%25C5%2582umaczeniach+1+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to trick users into clicking malicious links. The ML classifier strongly flagged this PDF as malicious, supporting the attack pattern.

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.com/pify?keyword=angielski+w+t%25C5%2582umaczeniach+1+pdf In PDF document text
    • http://files.figlearningcentre.com/uploads/1/3/0/7/130775516/3318973.pdfIn PDF document text
    • http://nuzow.reveriecoffeeco.com/uploads/1/3/1/8/131856257/3199311.pdfIn PDF document text
    • http://masiti.westhoustonshotokan.com/uploads/1/3/1/4/131407005/6069443.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/1/0434/0868/7269/files/xuwesibefuwopula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/92876175789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2200/0029/files/sononefovaxasozovevixuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2039/files/lunuresigirikarilik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2685/6610/files/getapofesamadakofevakesin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9093/5969/files/want_you_gone_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/75782461487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/misudavotuwolezef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6746/4085/files/cantaloupe_island.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0481/0648/files/rutegutuduvukomukid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/19998314203.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
🗂 Part of campaign: figlearningcentre.com 3 samples

Related samples 1

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_off000060a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 5776 bytes
SHA-256: 34cb37c855fcda3f3c780458fbef999d9d0420e3f09dc9ad75b2e4efb29cbe67
font_01_sfnt_off00007455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7455 11464 bytes
SHA-256: 6c937cdab4e536f03e47a006a13caa7023a86d706e8f738f58c1d831322e3908

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