Malicious PDF — malware analysis report

Static analysis result for SHA-256 973ddd02cc8c6c4f…

MALICIOUS

PDF

44.8 KB Created: 2020-08-09 11:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c8312435acdd8951a4a632c6eb06f40 SHA-1: 0229466c43511fc4865367a7eccbdfeb735a1536 SHA-256: 973ddd02cc8c6c4f6cee93c5da408c01572c2cfbf00da21f7cf493442af74b37
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm designed to mimic legitimate PDF downloads, specifically for a religious text. The primary embedded URL, 'https://ttraff.cc/pify?keyword=catecismo+da+total+consagra%25C3%25A7%25C3%25A3o+pdf+download', is identified as a malicious redirector. This suggests the document's purpose is to lead users to malicious content through a deceptive lure.

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=catecismo+da+total+consagra%25C3%25A7%25C3%25A3o+pdf+download In PDF document text
    • http://files.baughmanbuzz.org/uploads/1/3/1/4/131406412/titozotuxakaruta.pdfIn PDF document text
    • http://files.brucekatlincreates.com/uploads/1/3/1/4/131453595/35c14b.pdfIn PDF document text
    • http://files.nataliepriester.com/uploads/1/3/1/6/131607029/e270a078d0afe8.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/1/0433/0687/7080/files/87913440599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/mopuviraletozatilif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3662/2498/files/18593313173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/60407660928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/20416539025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/atomic_structure_of_carbon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/tipabavatibino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/diagnostic_reading_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/doxebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/38830983131.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E49 5876 bytes
SHA-256: b49ec28b00013db1f031778adddf6fa0a75240b4eb7be523c8abd0647f438e6a
font_01_sfnt_off00007164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7164 10856 bytes
SHA-256: 268a587550afc70d3f816ec641467064e1b0d6180036a1a7b90684a8ee36f638
font_02_sfnt_off000095bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95BF 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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