Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b933fcf63d728e…

MALICIOUS

PDF

35.4 KB Created: 2020-08-07 04:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 919d40641e00220d23f095258c50a4b3 SHA-1: 188c80e7d4934b4135396789eabb0b95b1efe24b SHA-256: a8b933fcf63d728ec41331538100b76eac129a20db97ac035d716f493cda3f11
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. These links ultimately redirect to a known malicious URL (ttraff.cc), indicating a phishing or redirection attempt. The document body itself is largely obfuscated but contains the malicious redirector URL, reinforcing the attack pattern.

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=andar+conmigo+acordes+ukulele+pdf In PDF document text
    • http://files.artisticawardsbyjoebourne.com/uploads/1/3/1/4/131483955/4729f4e4bbc80da.pdfIn PDF document text
    • http://files.khrystaljcounseling.com/uploads/1/3/0/7/130740433/72a80dc2c2.pdfIn PDF document text
    • http://files.ccharveymusic.com/uploads/1/3/0/7/130738554/guzasazifuvodefam.pdfIn PDF document text
    • http://powif.krishnayogastudio.com/uploads/1/3/0/7/130775350/4958039.pdfIn PDF document text
    • http://files.fucinarieportfolio.com/uploads/1/3/1/4/131406807/fotani.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/1/0429/1903/5033/files/unicode_math_symbols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/vipimedudatemodega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/mozomosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6459/8434/files/astm_e8_69.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6262/files/35264684098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/marowski_s_chem_lab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7379/7285/files/xekabexotagaleme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4885/files/76861317564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2440/6935/files/tutinesogomonobejodano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/nesumopurenezetipewuvox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/50629751935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/ford_crown_victoria_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0588/5090/files/juwazorusapev.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_off00004d3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3D 5528 bytes
SHA-256: e22c5d64af04fb91219a12f024000b6dc8cd1b67ba81a154e6bbe8b0332c912b
font_01_sfnt_off00005ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF5 9528 bytes
SHA-256: 6336b924d42347de9c396c51970bde1ff5226ba617865aaae7c69762fd675946

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