Malicious PDF — malware analysis report

Static analysis result for SHA-256 98cfe0d8e28a9849…

MALICIOUS

PDF

58.8 KB Created: 2020-08-19 10:27:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49b39038d0fbcc79f90a6f572843a6f1 SHA-1: e10dd5d14b6574f2926fe550f24a65a0b6886175 SHA-256: 98cfe0d8e28a9849b9db6312e69ea48e5efd676cc19cc51e60917338b16ff567
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm with 24 external links, many of which are hosted on Shopify. The primary link redirects to a known malicious redirector infrastructure. The document body text is garbled, but the presence of the link farm and the malicious redirector strongly suggest a phishing or malware distribution attempt. No scripts were extracted from this sample.

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.ru/pify?keyword=characteristics+of+successful+entrepreneurship+pdf In PDF document text
    • http://files.westonmusic.co.uk/uploads/1/3/0/7/130775633/90f73537c7f929.pdfIn PDF document text
    • http://files.northoftime.com/uploads/1/3/1/4/131453902/154353dd.pdfIn PDF document text
    • http://lafiropel.lifephotographycl.com/uploads/1/3/1/6/131606289/ruzugozero.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/1/0428/9835/8432/files/73121007565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4767/3253/files/91963415422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7973/7237/files/14219794888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8673/1681/files/95937862382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/atomic_theory_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7731/1391/files/28698692862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3144/4128/files/gipufolimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/40580121563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5589/6990/files/yellowstone_winter_guided_tours.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_off0000a992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA992 5148 bytes
SHA-256: 496cc2097cb29c5462e65d32f8ce951d401fe9b28b571819a281b301917e7e4a
font_01_sfnt_off0000bb09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB09 10348 bytes
SHA-256: f07273bef43728d58bff2f95b74f96e9164b6b24d07e870a1f48d661ce39be51

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