Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6d8a8fe7cdf7e41…

MALICIOUS

PDF

55.0 KB Created: 2020-08-12 14:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ec1a9df3a9643636bf47411d05cb7b1 SHA-1: 3f12df8d80d11e4ab15cd47a7db91f5472f62db1 SHA-256: d6d8a8fe7cdf7e41935f7fc1aaac33afaeeaa0b5b5e91013df797708bca7cb9a
194 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a popular book, suggesting a social engineering tactic. The presence of a malicious redirector indicates an attempt to lead the user to a harmful site, likely for malware distribution or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.com/pify?keyword=brent+weeks+the+burning+white+pdf In PDF document text
    • http://xadurijek.holyredeemerfla.org/uploads/1/3/0/9/130969754/nabuzakojusofa.pdfIn PDF document text
    • http://files.millardwesthoops.com/uploads/1/3/1/3/131383743/8759303.pdfIn PDF document text
    • http://files.chriscruzboone.com/uploads/1/3/0/8/130874304/2732add9e3.pdfIn PDF document text
    • http://ledexuj.ubtsshreveport.org/uploads/1/3/2/8/132814930/4219153.pdfIn PDF document text
    • http://files.mplhk.org/uploads/1/3/1/4/131453733/renafuzikokokamirale.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/1/0429/9508/9559/files/pmay_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1064/4377/files/28361218334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/23811622517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/saw_guide_rail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/python_aes_encryption.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8408/6424/files/21552142359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4192/2977/files/83574382701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/99495884424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4962/3462/files/campbell_ap_biology_9th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1393/0142/files/15966166308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7446/7478/files/97522422426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3762/0386/files/83565527268.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 2

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_off000098b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98B5 5408 bytes
SHA-256: 27fa7c81d7a97ff3047cea728244d2c87835ab7f04fdb046c077c962e0a5b39e
font_01_sfnt_off0000ab28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB28 10468 bytes
SHA-256: aeeec6c244b56b5598aff10b1c752b521d80713d45d0d6a48777e591482316d5

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