Malicious PDF — malware analysis report

Static analysis result for SHA-256 72c3f17481df2cd5…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 01:09:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 979dd471e6d883b0b3fe85704dbf7e22 SHA-1: 9ed1b7172a2489efc97b6c41d5c603559af8f3df SHA-256: 72c3f17481df2cd512a5c444e9d0413ba78dd0939e39fef18c7a01eb1ac9d79d
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create a link farm, with a primary link redirecting to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a financial calculator, further suggesting a phishing or scam attempt. The presence of multiple external links and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites.

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=annuity+calculator+excel+template In PDF document text
    • http://files.maryrawsonphd.com/uploads/1/3/1/3/131379183/zibuwiwaxa-wezutudaf-tirezizenelof-noniziz.pdfIn PDF document text
    • http://files.chainofeventsbw.com/uploads/1/3/1/8/131857115/wotokafepoxukusap.pdfIn PDF document text
    • http://files.pettopiakc.com/uploads/1/3/2/6/132695829/8343370.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/1/0440/5736/2597/files/434366598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/jelovetokig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xogasetixudaxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/lanikovekaxibifuravo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6940/files/rounding_decimals_worksheet_6th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/the_martian_epub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1712/5536/files/biztalk_orchestration_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1555/2674/files/53085182799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4094/2753/files/japan_travel_guide_kobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9663/2472/files/ski_arlberg_piste_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/57186547486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/sadidoxedesaro.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 5

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_off0000778a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778A 5060 bytes
SHA-256: 7b74e4522bfd67fdf1c261fa2c2254c3dcc97eed1b798a10feb12939b912278f
font_01_sfnt_off000088b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B3 13344 bytes
SHA-256: 81bb6ac1713a1e7bcfb5e04ebbf44c2ccae21a191f73e6a780f1dc08dce618f1

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