Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a8af1e31ed3084…

MALICIOUS

PDF

45.4 KB Created: 2020-07-25 16:50:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2bf1b0cd43b4c8b2db8d15000324bd5c SHA-1: b7b93d007660883304e3ac96fe6d65e20eeb2189 SHA-256: b2a8af1e31ed3084692b5a897faf72c81b9950c99fd4093ab974572ac7d29551
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, suggests a lure related to 'shadows of evil ritual guide'. The primary attack vector appears to be directing users to malicious infrastructure via the embedded link.

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=shadows+of+evil+ritual+guide In PDF document text
    • http://files.bostons4littlepaws.com/uploads/1/3/0/7/130739251/puxuwuguwuxa.pdfIn PDF document text
    • http://files.enlightenators.com/uploads/1/3/2/7/132740350/a6ce7d68013.pdfIn PDF document text
    • http://files.xmastrees.org.uk/uploads/1/3/2/7/132740462/826000.pdfIn PDF document text
    • http://files.michiganate.org/uploads/1/3/1/8/131859895/doneladanarejiteki.pdfIn PDF document text
    • http://files.hopesecondarylibrary.com/uploads/1/3/1/3/131381799/2732361.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/1/0437/2388/2664/files/52512652534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9837/files/mowugomepepilawubugarixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/77372511053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/85095572636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0438/files/zoligubutuzixegufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7461/files/musone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1723/0741/files/nupopawovodet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9587/3949/files/80136705133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/damezepujukamuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/rutisupewuwuzupar.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_off000074bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BC 5200 bytes
SHA-256: 4cd261e80472b2ab815be786f7980b1919c584ee5de3de3f64c2ad080ff0225f
font_01_sfnt_off00008693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8693 9908 bytes
SHA-256: 2a2f4662ef8540a8a4903db610ea0c9abbf5e0b776beeaaee837bf2ce03c3972

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