Malicious PDF — malware analysis report

Static analysis result for SHA-256 67a1aa064fedba5d…

MALICIOUS

PDF

72.5 KB Created: 2020-08-14 23:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 046157bb2df39a6ddbb3f11378a54a66 SHA-1: 90c1c6610b39b1ef7972ff831bf536c949ce0deb SHA-256: 67a1aa064fedba5d26120306c24b8568553c11dceb4fa83fc355fd80a9e5a1be
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to disguise its malicious nature. The presence of a link farm and a redirector indicates a phishing or scam attempt, likely to deliver a second-stage payload.

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/wb?keyword=alexandra%20david%20neel%20books%20pdf In PDF document text
    • http://files.foxcroftarts.org/uploads/1/3/1/4/131413766/f42b66.pdfIn PDF document text
    • http://files.innerdolphinawakening.com/uploads/1/3/1/6/131606035/kumuvefajolen.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/1/0444/3848/7206/files/waves_vocal_bundle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8100/6246/files/xofaninejusudov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/6344682141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2166/files/aitsl_standards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/72381429952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/monijonawalubulix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3503/2737/files/wugumigojiroxuxawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/tusiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0109/3030/files/valores_normales_de_una_biometria_hematica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0663/1833/files/1276359313.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 8

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_off0000df34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF34 5356 bytes
SHA-256: e212b51bd5537894429ab7f4e6767479071c952635a91093dfdeca661823e543
font_01_sfnt_off0000f176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF176 11020 bytes
SHA-256: b72dea5832629dbef8759266a242e8ec911f83fc8da384fcaeae008fb95bc66f

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