Malicious PDF — malware analysis report

Static analysis result for SHA-256 89dddda475eec9bc…

MALICIOUS

PDF

39.2 KB Created: 2020-08-14 01:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29a5b775b44d4d022d8003b3f1a8062e SHA-1: 111003721a61bb27959787f94d13b13526d5d294 SHA-256: 89dddda475eec9bccb8522e0ccf9ef266bd7e6aa24fa13b624965c290bf13f01
202 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a free calendar template. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, many hosted on Shopify, likely intended to manipulate search engine results or distribute further malicious content. The presence of a visual download button further supports a social engineering lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+year+calendar+template+2020 In PDF document text
    • http://towakis.cuesign.org/uploads/1/3/1/1/131164462/xagewuwo.pdfIn PDF document text
    • http://files.stthomasabecketchurch.co.uk/uploads/1/3/1/3/131380482/7209896.pdfIn PDF document text
    • http://files.drifftblog.com/uploads/1/3/0/7/130739810/5636490.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/1/0429/7005/4805/files/9474977912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/konikulad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9043/4455/files/julejabovizefilowopopuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8446/1720/files/ninjutsu_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8790/4422/files/kujeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/7354442832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4891/0491/files/16061518404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/alopecias_no_cicatriciales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2121/9493/files/62112831441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8552/1311/files/sosefubitokadibizagume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/taniseraguvifololesugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/nomutexitomipogevuxe.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 3

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_off00005ab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB3 5372 bytes
SHA-256: 20903319de3515be18b5eb48eb84da6a3966f88198f53a4b4432884fb837e65c
font_01_sfnt_off00006ce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE8 10296 bytes
SHA-256: c3803af6ed57c144e9366a08672807c2551296b29e249bc842bbaa65b9ac6c80

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