Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c4a2f17901f181…

MALICIOUS

PDF

33.5 KB Created: 2020-08-06 22:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 946bed0c23419cbf67a295108bc832fa SHA-1: 82986adc20c9214ae49bcfdb0950918e19c17e42 SHA-256: 34c4a2f17901f181953c4c3fbf599f1024f6f68f5d7d0f91918b75872286eb03
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDFs, suggesting a link farm SEO tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. No scripts were extracted from this sample.

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.cc/pify?keyword=afsoomaali+fasalka+1aad+pdf In PDF document text
    • http://files.carissamariee.com/uploads/1/3/1/4/131453193/5307999.pdfIn PDF document text
    • http://files.cbfncyoungadults.org/uploads/1/3/0/8/130813888/xirerutotiwizun_lewaz.pdfIn PDF document text
    • http://files.theweeklybeaver.com/uploads/1/3/0/9/130970008/3594690.pdfIn PDF document text
    • http://files.youngmarys.com/uploads/1/3/1/4/131453494/loxagozugifadur.pdfIn PDF document text
    • http://files.medicalwhitepapers.com/uploads/1/3/0/7/130776416/fowuwipiz.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/1/0432/0044/6626/files/zuzejevurikatojujof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/zuwofer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/godsmack_the_oracle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/british_english_grammar_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4551/9513/files/al_ghazali_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0963/7533/files/sibuzufow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99640144283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8993/6025/files/addition_and_subtraction_word_problems_3rd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8983/files/bekibumijidesubidivugol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3331/9831/files/1762627715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lujodegiduwidixerilaji.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_off000045eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45EB 5196 bytes
SHA-256: 4e816663403b6a35ed5ea205c9ccb0486abe7297d82b17bcf7398d881e564e90
font_01_sfnt_off00005790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5790 9832 bytes
SHA-256: c9e0cef9c9782794bced39e1887b1dc9830781fd49de339a5d186bb4c2fd0153

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