Malicious PDF — malware analysis report

Static analysis result for SHA-256 72d52f1c7cdb2d47…

MALICIOUS

PDF

39.8 KB Created: 2020-08-25 20:20:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b20e8cc1747600929ad01c18979b6900 SHA-1: 3e57a58864b2f93879a76580d0024c2893f7b7e0 SHA-256: 72d52f1c7cdb2d476ea34f88634c8730b0d6e96cd4e3dbdf6d7c4b7c5f9c31e9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though partially corrupted, contains text related to 'Tmnt character sheet' and the malicious URL, suggesting a phishing or scam lure. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points towards a link farm or redirection strategy.

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=tmnt+character+sheet In PDF document text
    • http://pawexus.liiartsa.com.au/uploads/1/3/1/6/131637284/jawoven.pdfIn PDF document text
    • http://files.evangelcommunitychurch.org/uploads/1/3/0/8/130874437/vomopuvuwo.pdfIn PDF document text
    • http://zigijew.franklinlrc.com/uploads/1/3/2/6/132695569/5892493.pdfIn PDF document text
    • http://files.mrei.ca/uploads/1/3/0/7/130776183/gabefexuzusodim.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/1/0430/6160/8599/files/47910114293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1362/7294/files/32373999137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/35207853878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/laloju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2280/3363/files/rujupefexobiwupizozavejan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4413/5066/files/kosotidomutatakig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/84142926863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0917/files/31194358240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2926/5574/files/xukudakowisax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7048/7712/files/roremizulajaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/source_filmmaker_workshop_er.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_off00005e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6F 4956 bytes
SHA-256: 097456dee8bcb86893fdd510093de117ed03c39da11a71ce7f1f21c6e63daf30
font_01_sfnt_off00006f11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F11 10428 bytes
SHA-256: db4225ef3cf159ac2bb784fd0b9b61128ecb00b3f2875b90d038253bc450c08f

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