Malicious PDF — malware analysis report

Static analysis result for SHA-256 72127cfff408bd80…

MALICIOUS

PDF

37.3 KB Created: 2020-08-21 09:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cee4a1d5dd0c03a298af80b343950aba SHA-1: 86bee7cb2f303638191ed2e2415db7be2bf0f140 SHA-256: 72127cfff408bd80df10c94497bdae0a5a449f3fecc49c8bad8f3843a6f055cb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.com', which is flagged as malicious. The document body, though partially corrupted, contains text related to 'Powerpoint templates folder location' and a URL that appears to be part of an SEO link farm designed to attract users with deceptive content. This suggests a phishing or malware distribution scheme.

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=powerpoint+templates+folder+location In PDF document text
    • http://files.crompers.com/uploads/1/3/0/8/130874631/bf18bab.pdfIn PDF document text
    • http://files.hldinspections.com/uploads/1/3/2/6/132680922/xegilomomove.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/1/0434/5777/3725/files/fafopekojexigum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/dedorepijawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8943/6580/files/letolutipupugewurejafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2957/files/bubble_world_game_free_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/73270332822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/carrier_air_conditioning_control_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/63658020108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/57626249404.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 4

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_off0000559d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x559D 5396 bytes
SHA-256: 85abc7143dd5ddc93379085c4c363c4a8949dcab023e83df8050c76aa1441876
font_01_sfnt_off000067df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DF 9652 bytes
SHA-256: 934db156f07aaa648b182729462d7605299288af143f33784fa4db19dc7c74f1

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