Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d88200922f8e21e…

MALICIOUS

PDF

46.0 KB Created: 2020-08-19 23:41:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 729947c40728df1970fd58946acd286a SHA-1: e30eed150092bdcba961da1d2ad3964164120e60 SHA-256: 0d88200922f8e21e4db8786051dda3faf5dd32e757c28852ca83c0fe35c97e7e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics, suggesting a lure for users to download further content. The presence of a link farm and a malicious redirector indicates a phishing or scam 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.com/pify?keyword=audiometry+graph+template In PDF document text
    • http://files.westervilletherapy.com/uploads/1/3/2/7/132741709/xinasepegoxesinijus.pdfIn PDF document text
    • http://files.eatfatboiz.com/uploads/1/3/1/0/131070378/484aa6774d3.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/1/0433/9246/7109/files/kaguvumoxetuvanabiwejisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8123/files/medical_assistant_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8927/2725/files/88206993188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/behaviourism_theory_of_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/45883807808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9479/3630/files/xorujodogediwirukimuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3542/6970/files/44565156613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8297/2326/files/74880615463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3282/9342/files/vudakajomazegadamekaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/challenging_lateral_thinking_puzzles.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 3

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_off000074ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AD 5284 bytes
SHA-256: e463bd90ba703eab570547264472a27064c54bbad70d2896c06fa0a52326bef4
font_01_sfnt_off00008687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8687 11316 bytes
SHA-256: 00b7bc0990d10a0962f22787cf0656a01b5aaa09a00f5feaddacc65ff575037e

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