Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3afab2c296b9d2…

MALICIOUS

PDF

39.2 KB Created: 2020-08-10 12:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 912692c20a8745433b25559a7d2aa8d4 SHA-1: bee73e05e6ba64325b278ef52ad9922cb708cbe2 SHA-256: 1b3afab2c296b9d27df507c9420a5f9cb2373e342bf78acb0d64abaa4e9b1e87
202 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains a call-to-action phrase, suggesting a lure to trick the user into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which point to PDF files, likely part of a link farm to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=android+secret+codes+pdf+file In PDF document text
    • http://files.terrasoulherbs.com/uploads/1/3/0/7/130775033/rozobibijejurej.pdfIn PDF document text
    • http://wirolusaj.sebastianwetherbee.com/uploads/1/3/0/8/130814297/34bf54e46dc9.pdfIn PDF document text
    • http://xebome.kannwoodtimberworks.com/uploads/1/3/0/8/130813528/9980071.pdfIn PDF document text
    • http://files.whiteplainslodge.org/uploads/1/3/0/9/130969056/8399152.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/1/0429/2493/3283/files/xisew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4501/1112/files/gejosideguxedigisabej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/tawagudejak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1080/8216/files/sogeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/71959100723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9379/files/fajufigimarilakemukogobub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9258/2293/files/athlean_x_training_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/ubuntu_install_opencl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0916/0862/files/90897995606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0391/7974/files/xivori.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 3

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_off00005cb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB6 4928 bytes
SHA-256: d48e07b2e612c99780877f08c34a1a9596b1ca4a172015f5b071935d3d0f19c6
font_01_sfnt_off00006d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D91 10108 bytes
SHA-256: 156416ba21029cb6cdb104995ee5750cf09b140edcad5205f2f087ca1284527c

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