Malicious PDF — malware analysis report

Static analysis result for SHA-256 53b08ace03b620cc…

MALICIOUS

PDF

44.2 KB Created: 2020-08-28 04:41:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7223df7282bd5374c4a34d7b3b925f89 SHA-1: 00dd46eb41c2a4390a1439f4050aab3f46629f10 SHA-256: 53b08ace03b620cc90b035dc59d846feeef159add40615847c983849c9693fba
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 designed to obscure the ultimate destination. One of the primary links, 'https://ttraff.cc/pify?keyword=formato+cuentas+t', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on various domains, suggesting a phishing or redirection attempt.

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=formato+cuentas+t In PDF document text
    • http://files.sweetbasilhurst.com/uploads/1/3/1/4/131406518/pegupojivirox.pdfIn PDF document text
    • http://futewixo.bluewatersinc.net/uploads/1/3/1/1/131164250/bitizusibif.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/1/0429/5757/0207/files/nice_guidelines_central_venous_catheters_infections.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5481/6665/files/41487569585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3593/0273/files/cch_chuyn_i_sang_nh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gevuruliwineda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9171/3443/files/crane_vending_machine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/bharatha_rajyangam_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4942/5823/files/35240824064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74098669839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zizamazigunonafimav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/petamitare.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 2

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_off00005f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7D 4700 bytes
SHA-256: 64db10bd6e3f48d75a9e90155fb5787d8ead0bef083708d75a8a1d0e405ec4cb
font_01_sfnt_off00006f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F48 11540 bytes
SHA-256: b1d5ddc214ef64756945cc287029997bfd2b71b7867e5ddff19a77034c289d39
font_02_sfnt_off000094e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94E3 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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