Malicious PDF — malware analysis report

Static analysis result for SHA-256 32278bd92aa40b07…

MALICIOUS

PDF

40.3 KB Created: 2020-07-30 21:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90260d6553bf7e377329e0b517cd12fb SHA-1: 55c67a7e9d7485706a1f654044051d2b65980a53 SHA-256: 32278bd92aa40b07e7f30b76017385cf6b808f43042a1d0e8c45cca0b2018d3f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. One of the primary links directs to a URL containing a book title, suggesting a lure for SEO poisoning or phishing. The file also exhibits characteristics of a link farm, with numerous external PDF links. No scripts were extracted, but the presence of malicious redirector links is a strong indicator of malicious intent.

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=atkins+quimica+fisica+8+edicion+pdf In PDF document text
    • http://files.pacificcoastvolleyballclub.com/uploads/1/3/1/3/131380612/9291476.pdfIn PDF document text
    • http://files.shannoncousino.com/uploads/1/3/0/8/130813948/0278abf817e.pdfIn PDF document text
    • http://files.marriedbythebeard.com/uploads/1/3/0/7/130740221/biwibokifejodivat.pdfIn PDF document text
    • http://files.msurunningclub.org/uploads/1/3/2/6/132683001/369356.pdfIn PDF document text
    • http://files.prinevilleredemptionhouse.com/uploads/1/3/0/7/130775795/nivunovoragomofepanu.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/1/0431/9189/4176/files/damasiretuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/xilubewunudorofifek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/giratajolexodomofavewolov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/tisapopitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/74405314271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/91501364877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/wifinibolozekutowukovan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17612659915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/larik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/zereninoxebavigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/26341916411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5690/6918/files/kekejilijekugikad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7238/files/pafalaju.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_off00005f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F87 5428 bytes
SHA-256: 79722f7b5c67549ce9aae2ef4be01fec259216a496f120bdaa674bd6935c725a
font_01_sfnt_off000071e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E1 9832 bytes
SHA-256: c6a2d8bc0f7224ebbd2bf5554e15b49e7d85b9e8deeb9b5a5a3ebced2504441e

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