Malicious PDF — malware analysis report

Static analysis result for SHA-256 898142eff36321e3…

MALICIOUS

PDF

52.9 KB Created: 2020-08-25 08:20:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2387dd710a4daa7b8d554a64a0d49ef9 SHA-1: b9c7fca66e82f246223a2941d781022c9ae1bebf SHA-256: 898142eff36321e3505af62f12b22666cf8c455213a8af0f136aad3e5d2879c4
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to "Malayalam christmas remix songs" which, upon clicking, redirects to a malicious URL. This URL is part of a link farm and redirector infrastructure, indicating a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • 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.
  • 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=malayalam+christmas+remix+songs In PDF document text
    • http://files.novellychic.com/uploads/1/3/2/6/132695405/1b7055.pdfIn PDF document text
    • http://zajaxaxo.cambcollege.com/uploads/1/3/1/1/131164128/sokef_tasudesemupudux_rokurodi.pdfIn PDF document text
    • http://lutetefe.bexbourne.co.uk/uploads/1/3/2/7/132712237/f1bde4233dda491.pdfIn PDF document text
    • http://files.artsmarttalk.com/uploads/1/3/0/8/130815013/3166905.pdfIn PDF document text
    • http://files.ccsoa.net/uploads/1/3/1/6/131637056/bedeminejoviki-gonive.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/1/0437/9348/1889/files/93753609547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4598/5192/files/sony_message_apk_mirror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sakumuxapiwitisozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4743/files/nopisowufemulateler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1520/9123/files/marlin_model_81.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/50752439020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0467/3430/files/copersucar_annual_report_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/zaloroxixujafeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/76637538304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/4007115425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/bagheli_lokgeet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5993/files/les_types_de_centrales_lectriques.pdfIn 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_off0000937d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x937D 5388 bytes
SHA-256: 96639c13922179bf2d78aecb1abc80ebf3d36f9b5c288296aac975848049922b
font_01_sfnt_off0000a5bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5BC 13404 bytes
SHA-256: 53195a9bc33ea11c929e4ae549b94298505385893ca22720461d8a4d8e9d2f45

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