Malicious PDF — malware analysis report

Static analysis result for SHA-256 34f0ba49ea7b162d…

MALICIOUS

PDF

55.5 KB Created: 2020-08-23 04:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65913970416ddb9261ebd6e684ba9825 SHA-1: 0c4e7bf24f40b61c4608c3d0382bea38b28fe46d SHA-256: 34f0ba49ea7b162d1f2b6b0929072fe2fedbbc6cecf334514e95455005992337
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF document that contains a large number of embedded links, a common technique for SEO poisoning or phishing. One of the extracted URLs, 'https://ttraff.ru/pify?keyword=bing+crosby+christmas+songs', is flagged as a known malicious redirector. The PDF structure and the presence of numerous links suggest an attempt to lure users to malicious sites, potentially for further exploitation or credential harvesting.

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=bing+crosby+christmas+songs In PDF document text
    • http://files.slocountymassage.com/uploads/1/3/2/6/132695388/9904169.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/1/0462/4380/7392/files/grief_and_loss_therapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kipisoluni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/33597992855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8687/9651/files/37924465878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/adobe_illustrator_tutorials_bangla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/55045962520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0414/7350/files/befajuvugedigoxuxakigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6917/files/lilavasabarujopizukisev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5636/4711/files/lekurunaberaremigusobud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8700/2790/files/sorting_2_dimensional_shapes_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6870/0310/files/desi_bhangra_video_song.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 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_off000092a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A8 5472 bytes
SHA-256: 1a5b41c805c15fd33717b74a01a4d9ab2389ca76dd29b132b0c5d42dea25245c
font_01_sfnt_off0000a516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA516 14192 bytes
SHA-256: 85f4cb30d24fd02a562469cb968155028b59b1834e171d8935c4fea90ef0e188

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