Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ebe5a6a6c9dd5d7…

MALICIOUS

PDF

54.6 KB Created: 2020-08-07 21:07:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bd441ca52a7c302ac2b761ff8cba637 SHA-1: e8b842933ee8828194c7d22a932b8c71b4ffd1c2 SHA-256: 4ebe5a6a6c9dd5d75dccd7c94b427358cdc607a5c67b2505cda4de35060b733e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and heuristics indicate this is an advance-fee scam, luring the user with a topic like 'agrarian reform law' to click the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of links to other PDFs, likely for SEO manipulation or to distribute the scam across multiple sites. 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.cc/pify?keyword=agrarian+reform+law+in+the+philippines+pdf In PDF document text
    • http://files.ronnieroseband.com/uploads/1/3/0/8/130813797/a7f99.pdfIn PDF document text
    • http://files.vccsns.org/uploads/1/3/1/3/131398533/wiluzorizaziteruvi.pdfIn PDF document text
    • http://files.randallsimonpiano.com/uploads/1/3/2/6/132680852/4278757.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/1/0433/0687/7080/files/tijubijevuvikupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/nufagumugevubedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/wikavonagajajirukesepelol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/81758366144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/38041876484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/nadenep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/77234979502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/learn_american_english_conversation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1695/3767/files/lego_batman_movie_yify.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0001/0664/files/medscape_aprn_compensation_report_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/socso_caruman_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5127/0815/files/90560046029.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_off000097f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97F5 5536 bytes
SHA-256: 12f813a812845ed3efc7520d5b0eac0aed77207fd86206f8347678226d5065fe
font_01_sfnt_off0000aab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB3 10160 bytes
SHA-256: 386b26c8ecab689595ec737d6b12dc22e02b7784dc246b35a50593c4b0da1bd6

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