Malicious PDF — malware analysis report

Static analysis result for SHA-256 31716a1355ba2168…

MALICIOUS

PDF

41.5 KB Created: 2020-08-14 23:25:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1319a089b9abb3e275e554d2d843d759 SHA-1: 0ae9d04771bce03385d69ddd20e6aefebda1eba9 SHA-256: 31716a1355ba216847ce554277c8a4c9ce578f1a248eb897e7fd9aaed93ce348
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a large farm of external PDF links. The embedded URL 'https://ttraff.cc/pify?keyword=use+creator+code+template' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and numerous other PDF links, many hosted on cdn.shopify.com, suggesting a link-farming or redirection scheme to distribute 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=use+creator+code+template In PDF document text
    • http://files.hwcroquetclub.com/uploads/1/3/2/3/132303010/zudinexujiwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2518/4421/files/fokobejavalekovigumosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/acoso_escolar_bullying.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6919/files/27135631831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4888/6684/files/5837115777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5710/0453/files/17880896670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/4085354997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/38832629437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/final_fantasy_brave_exvius_starting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/68437092695.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 5

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_off00005946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5946 4844 bytes
SHA-256: 24b9f6b09f7ddad0d75ba14d4814cde2a8671761d2d6f65aaf699bcb8e491355
font_01_sfnt_off000069bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BB 9964 bytes
SHA-256: f6836fd41aa27c2aac9f1f9ec7b8f5be175f49e60dd9a57e7f6ddac1559aee4b
font_02_sfnt_off00008bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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