Malicious PDF — malware analysis report

Static analysis result for SHA-256 a603a402252bb55e…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 11:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b7c8f7bfa4ab898355804cf70394a17 SHA-1: 301918b281e1b7ba18874b9f16dbee16ebe2d419 SHA-256: a603a402252bb55ea70eceaa125885221eedc15306e171f8337663b3a01dcadd
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a phishing or scam attempt where the user is enticed to click the link, likely to download further malicious content or be redirected to a fraudulent site. The ML classifier strongly supports the malicious nature of this PDF.

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=canciones+letra+y+acordes+pdf In PDF document text
    • http://files.mayalissa.com/uploads/1/3/0/7/130739525/gudaruxipanagim_mozog.pdfIn PDF document text
    • http://files.englishwithtuttle.com/uploads/1/3/1/8/131871704/pagexu_nuganu.pdfIn PDF document text
    • http://files.purplerun.net/uploads/1/3/1/4/131406435/jamobinovol_podufam.pdfIn PDF document text
    • http://files.chefsmoyardi.com/uploads/1/3/1/6/131636825/500646.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/1/0435/2340/8032/files/milapizesomukojafifiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0670/9159/files/wafer_type_butterfly_valve_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6315/files/vugafodametasusitakodeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/wijifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/zusikud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9157/8276/files/calculus_college.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8792/5143/files/gre_analytical_writing_sample_essays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/32375212408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0455/1590/files/87367448368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0852/3416/files/mivib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3273/0008/files/5000060900.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 5

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_off00006184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 5156 bytes
SHA-256: f72fa6e1f78773053ecf9b7f999c27da72496dd0f4d61a38fb8e893c80808244
font_01_sfnt_off00007320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7320 11104 bytes
SHA-256: c49feab3b450d0248b091d1e15cc24b1766aef693a4545073ea4bc92f058f3eb

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