Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cf18e89af6d3be5…

MALICIOUS

PDF

82.7 KB Created: 2020-07-28 05:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01c712ca936348e950f8afec0b05994f SHA-1: 5c74236d141ad7879dd3f0220cfb52a24bce6798 SHA-256: 9cf18e89af6d3be5dc7c2652c4cba8605abec04b6b05c971e699f27adcd217a1
202 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with 30 links identified as part of a link farm. One of these links, 'https://ttraff.com/pify?keyword=bicycle+race+queen', points to a known malicious redirector. The document's structure and the presence of numerous external links suggest an attempt to drive traffic to malicious infrastructure, possibly for SEO abuse or to host further 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bicycle+race+queen In PDF document text
    • http://files.texasfinesse.com/uploads/1/3/1/4/131455956/wupiwowopasu_bepukugijisegil.pdfIn PDF document text
    • http://files.costacalidapropertybroker.com/uploads/1/3/0/9/130969525/ae4636c3ced.pdfIn PDF document text
    • http://files.isetteconi.com/uploads/1/3/1/0/131070529/0648b1373.pdfIn PDF document text
    • http://files.jonathanlumsden.com/uploads/1/3/2/6/132696483/felixujomujawe_guruwobivosa.pdfIn PDF document text
    • http://files.suracipaintingllc.com/uploads/1/3/2/6/132681351/mixufapelurab_vipapuxukevudi.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/1/0429/9476/1877/files/xagero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0769/files/sugejow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/vozenetixiwuxivejuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/52590643886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/24444004646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/tumugeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/segokisovetoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/91085877335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9220/5978/files/kivekaxomowilisujegeboro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/dubamaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1289/8461/files/wutenabalonalimega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/filibu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8048 34976 bytes
SHA-256: fd83d82b9f1cc6bc1c78d56ddefb957e6e068b94edb2e4cfe82c8310fbb51cd7
font_01_sfnt_off0000ebe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE2 4584 bytes
SHA-256: 31dfa066f5b22460cf2c9781da6a5f43bbb8825a635f4333ec89c48b3169f427
font_02_sfnt_off0000fb76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB76 13624 bytes
SHA-256: c9916770e8a3f4b5341b7f8c96e891478cdbdb324da051c233265179422216c3
font_03_sfnt_off00012778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12778 16240 bytes
SHA-256: 9fc63ec66482e66516849721d4dfff17d3b0c4d9cff13ed6b62117b587128c66

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