Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a607f1dfc5c0dba…

MALICIOUS

PDF

38.4 KB Created: 2020-08-07 19:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd48d9cb955c8981f936f571fbcbb93f SHA-1: 8dd8871d1fa14ca891675fe6805bbef1b898484d SHA-256: 5a607f1dfc5c0dba0b3b1d3dc1b36f3027305b58483303ea41673dcf9211646b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as a free download. The ML classifier strongly flagged this PDF as malicious. The embedded link 'https://ttraff.cc/pify?keyword=data+analysis+using+sql+and+excel+2nd+pdf' is a known malicious redirector, likely leading to a further stage of the attack.

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=data+analysis+using+sql+and+excel+2nd+pdf In PDF document text
    • http://virutani.rhinckeducation.com/uploads/1/3/0/7/130775795/fixunovezalab.pdfIn PDF document text
    • http://munemura.clonesac.com/uploads/1/3/2/7/132712615/vadizubalapiriko.pdfIn PDF document text
    • http://files.werbrave.com/uploads/1/3/1/4/131483955/xaxuxirijufives.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/1/0429/6327/1833/files/31737084185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/gejaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4944/1687/files/gobimosesej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0144/4512/files/heterogeneous_catalysis_principles_and_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/37771797557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/miluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9083/files/xatesalipositop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/risirutemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/55631165352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/felazidud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9182/0695/files/vineleg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/wenofejubalesarazavula.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_off000056fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56FC 5656 bytes
SHA-256: 99a4ddfb2300a28aad1bc4a4d3af40ffa4aff0fa2d50f234206ec3fe4704cc0f
font_01_sfnt_off00006a6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6B 9916 bytes
SHA-256: d4782720b33d4486a590873e2b1fdefba4c48fe9abb1f6b374231b1be5324aa7

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