Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad4f1fb967ea56a…

MALICIOUS

PDF

73.6 KB Created: 2020-08-17 06:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ff0eebe904297e224d74801ee1b20b7 SHA-1: 49f6b75e047dd42293d536b15db56d172074e5ed SHA-256: fad4f1fb967ea56ac021f36ca3e9bd24bb729e5b7113c03a9742d2617cbee98e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bloons+td+6+map+guides'. This URL is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the 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=bloons+td+6+map+guides In PDF document text
    • http://files.texasfinesse.com/uploads/1/3/2/8/132815003/b896a412.pdfIn PDF document text
    • http://files.triplecrownvolleyball.com/uploads/1/3/1/8/131872273/8576682.pdfIn PDF document text
    • http://files.debsharratt.co.uk/uploads/1/3/1/4/131454383/679ffa.pdfIn PDF document text
    • http://bonijewom.constancewoods.com/uploads/1/3/1/4/131406717/bemolu.pdfIn PDF document text
    • http://files.delorenzodachshund.com/uploads/1/3/1/4/131408029/2216942.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/1/0438/6347/4331/files/topirogidimatukolup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/6760637925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/60490591599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0388/5206/files/aggregate_demand_and_aggregate_supply_curve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78476378890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8477/5578/files/23953146656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/33118122674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8342/2109/files/15240656958.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB78 5388 bytes
SHA-256: dd5942758fbc39e2ff72d866610004bcaaafc71327c1118e043fa68a658eb752
font_01_sfnt_off0000ddb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB4 11212 bytes
SHA-256: c0c3c41992750f482b58bed09a8cd9f953433096837e521fc75df4d3e0da5dd0
font_02_sfnt_off0001040c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1040C 16144 bytes
SHA-256: 9320b99deda550142f27c2863323979cb4f5e555579166d59bd20b4a8d1dbcb7

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