Malicious PDF — malware analysis report

Static analysis result for SHA-256 a127065e09e74db6…

MALICIOUS

PDF

40.6 KB Created: 2020-08-11 21:01:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0d4848500a5e842b06d101a78b4d189 SHA-1: fcfc11ef902be02d9381e41a0c41230b8f052cab SHA-256: a127065e09e74db643016056e18e42b2bb5d35e3d78cef1223f241ae8f796634
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, masquerading as a document about workplace bullying. This indicates a phishing or social engineering attempt to direct users to harmful content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking for malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=workplace+bullying+in+nursing+pdf In PDF document text
    • http://files.westmountwildrugby.com/uploads/1/3/0/7/130740596/wemuvevoxijit.pdfIn PDF document text
    • http://files.janinegoldsworthy.com/uploads/1/3/0/7/130776218/mepinasegev.pdfIn PDF document text
    • http://files.linwoodfarmersmarket.com/uploads/1/3/1/4/131406662/visepumafona.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/1/0434/6282/0005/files/10478206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5940/4191/files/50866748307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/basozowolunimubezuwabowab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/99559168748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/nemogusukaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9984/0921/files/87845673434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0642/5248/files/87518093749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9242/5384/files/39034705666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/jajisagimuwilakitadoruzim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/zujuraguduvupibotaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6327/9767/files/10986947606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/lebomegatitibotuxorupi.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 8

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_off00005f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F38 5644 bytes
SHA-256: 7884e25e11aff306c28634dc82a1c45b06718dc37cc5e34f793634b71fdf4d34
font_01_sfnt_off00007293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7293 10328 bytes
SHA-256: 41125fa5c87325436d004907ef9fefe1d8501e57390ad80c1bd9f6173c992914

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