Malicious PDF — malware analysis report

Static analysis result for SHA-256 632d377a6760aaab…

MALICIOUS

PDF

37.3 KB Created: 2020-08-13 00:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52f572e5244f885d7cca9453a67ec25f SHA-1: 30e734746e8d37976d75010da0258fd88ed96151 SHA-256: 632d377a6760aaab9621921714e4c92b897f287412859b9d04f6dd8042eeaaeb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure for downloading a 'Baroque architecture book pdf'. The presence of many SEO-optimized PDF links suggests a link farm used for phishing or malware distribution.

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=baroque+architecture+book+pdf In PDF document text
    • http://files.aznutritiononline.com/uploads/1/3/1/6/131606165/9950916.pdfIn PDF document text
    • http://kelebi.stresswiseatwork.com/uploads/1/3/0/8/130874620/4280615.pdfIn PDF document text
    • http://sazixoked.skylarkpubl.com/uploads/1/3/1/3/131379206/1291405.pdfIn PDF document text
    • http://files.kpcdesign.org/uploads/1/3/2/6/132695418/71044.pdfIn PDF document text
    • http://files.creativeiceskating.com/uploads/1/3/1/3/131380032/790a473bf.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/1/0432/7738/5892/files/bojobakufifosikelarut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4008/6935/files/25121275290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1257/0783/files/dazokavivagipurigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/96174521213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/2416052240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/gugorilemuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7663/9127/files/categories_of_computer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8271/8107/files/95425933652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/45150001927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vitalifurefafimeribedewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1365/files/generac_22kw_installation_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/67534421493.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000523b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x523B 5412 bytes
SHA-256: 8b21b043d6cc89d8e1cf9304d5e73c253825f66142e14b083c22c47b86354695
font_01_sfnt_off00006497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6497 10368 bytes
SHA-256: ed96e45dd3cf945fa124d4a3268f16d835611b1e0f305822dd7ec7002011a593

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