Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dc5b2b234a2e479…

MALICIOUS

PDF

40.4 KB Created: 2020-08-09 23:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4440009a1fd63ed1b934381ee624f9ec SHA-1: c8ac05752232095f1a2dd6848bae8435a387aa80 SHA-256: 7dc5b2b234a2e479e12c803c7db452029fa27ad1f395c2a2cbdbeca743251613
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.cc/pify?keyword=area+of+geometric+figures+pdf', is flagged as malicious. This suggests the document is part of a link farm or SEO poisoning campaign designed to trick users into downloading further malicious content.

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=area+of+geometric+figures+pdf In PDF document text
    • http://files.susanmeehan.net/uploads/1/3/2/8/132816202/7650695.pdfIn PDF document text
    • http://files.brunswickelections.com/uploads/1/3/2/6/132695572/pibobo.pdfIn PDF document text
    • http://files.patgreenwellartist.com/uploads/1/3/0/8/130874201/a948f7bf2d9967.pdfIn PDF document text
    • http://zuvukufot.southamptonisoc.org/uploads/1/3/1/3/131379578/9753008.pdfIn PDF document text
    • http://files.catalystmsm.com/uploads/1/3/2/6/132683334/8340257.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/1/0429/2490/0515/files/kutovigupon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3277/1734/files/80496449476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6591/8118/files/antasida_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodowowesibaxen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3150/1720/files/dikanozex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3698/9850/files/62980106428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0766/1464/files/workout_timetable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/bewifulunopamevusax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/16687134743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0266/6906/files/womotomakiwuxaxebet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.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_off00005f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2C 5432 bytes
SHA-256: 5780faafd68787b5ffb38373ad5a326c3f308779cb8c4f3ba2f7e5f7a77150f9
font_01_sfnt_off00007194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7194 10316 bytes
SHA-256: 268c7193b6e0724fe21c454c8bf6d55301b749b60207f647aeb40be28bcbf81b

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