Malicious PDF — malware analysis report

Static analysis result for SHA-256 0910be61ba904daa…

MALICIOUS

PDF

72.0 KB Created: 2020-07-31 13:18:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b9d7ebee5ff3b0525c65d8cd4270ccf SHA-1: d220cc93dda4457401dd6f2e7ff5a97d97b757ff SHA-256: 0910be61ba904daa1e069f745e8c6580ff9edbbf6158c760fe63f5b1dd0b5669
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'carrom board rules pdf'. The presence of numerous external PDF links, many pointing to benign Shopify URLs but one to a malicious redirector, indicates a link farm strategy to distribute malicious content. The ML classifier strongly flagged this PDF as malicious.

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=carrom+board+rules+pdf In PDF document text
    • http://files.nebraskarainbowgirls.com/uploads/1/3/1/3/131379253/45ff15d32d30360.pdfIn PDF document text
    • http://files.mikewilldridge-artist.com/uploads/1/3/1/4/131437117/begurunakotudip_popowufixe_wowuloj_nerudinuz.pdfIn PDF document text
    • http://files.donmelnychuk.com/uploads/1/3/2/3/132303181/1955f134b4.pdfIn PDF document text
    • http://files.canuckdivers.ca/uploads/1/3/2/6/132681647/960f480b18f8.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/1/0427/8845/4559/files/jibigodikutusumiwowujaros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8007/0808/files/37684941953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/61660291735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2433/4496/files/61224239954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kerikelamizefebimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/31981687896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/mezijerenusigubawajatit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/dosiguzap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3371/4070/files/15469829476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/jipomuveweve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/gedafidupesakabifuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/33038445271.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 7

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_off0000dfc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC0 4996 bytes
SHA-256: 584d5b2ed47ac59e4906fb65cae62fae8f508b28270178a3204deee8d66e3f08
font_01_sfnt_off0000f0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0BD 9932 bytes
SHA-256: 18a7e8186988bee0169c53650f23fbf46135d5deabbbc8c554cf575215fd26a0

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