Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d6a4276a870e08f…

MALICIOUS

PDF

57.0 KB Created: 2020-08-08 14:55:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75c321c68146632bfa4eadd0b5e3a480 SHA-1: 515b8227c6fa9701650db23ad93a94aadfae2808 SHA-256: 6d6a4276a870e08fa2bb0c1166e9787c7ed8f0615584f20254d3cc7478c59042
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating a redirector to known malicious infrastructure at 'https://ttraff.com/pify?keyword=barbeau+test+pdf'. Another heuristic identified a link farm of external PDFs, suggesting an attempt to obscure the malicious destination. The ML classifier also strongly indicated maliciousness. The document body itself is heavily obfuscated, but the presence of the redirector URL within it reinforces the 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.com/pify?keyword=barbeau+test+pdf In PDF document text
    • http://fotexogut.kev-m.com/uploads/1/3/0/7/130739553/5613ab631.pdfIn PDF document text
    • http://files.totalityauthenticlife.com/uploads/1/3/1/4/131483153/biwisilarule.pdfIn PDF document text
    • http://files.athenselks973.org/uploads/1/3/1/3/131398195/pozoxapof_sokinebemek_pibixeneruli_pepavabedisan.pdfIn PDF document text
    • http://files.immaculateconceptionstmarys.com/uploads/1/3/2/6/132695698/e54e7597.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/1/0430/6924/3549/files/duxegusisasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3220/3679/files/chemistry_for_today_8th_edition_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5481/5640/files/lapakef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4442/1282/files/fasetegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6159/8616/files/form_g-_45.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/66612713019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0840/0280/files/sailor_moon_r_movie_tickets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/4589235815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8553/6159/files/vosijilabuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3882/6918/files/fegorasipotopun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8924/8927/files/zaxemubojeregusulep.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_off000090a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A8 4808 bytes
SHA-256: bcd49d5abacfd1bedfcb0e43230973fbe26a071ad2debb48ab9dec4eb60bd3ee
font_01_sfnt_off0000a106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA106 12288 bytes
SHA-256: 4d239d98b79f4b0c5e533ee898e235b33e164e032db8c5439f4648be291aa977
font_02_sfnt_off0000c925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC925 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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