Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5cd560a2dbe34f1…

MALICIOUS

PDF

46.0 KB Created: 2020-08-05 11:29:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db0eed3a6c6bb6754bd2c78ba8e96f98 SHA-1: d06ebdb0440c37430061fbcd485716c8de1dae09 SHA-256: e5cd560a2dbe34f164030dbc639992c1a73e98bd328687b8e9784259dbd78b04
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.cc/pify?keyword=agatha+christie+hercule+poirot+s+christmas+pdf, which is likely used to deliver a secondary payload. The document body, though heavily obfuscated, contains references to the book title 'Agatha Christie Hercule Poirot's Christmas' and includes numerous URLs, many hosted on Shopify, likely to appear legitimate. The ML classifier strongly supports the malicious nature of this PDF.

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=agatha+christie+hercule+poirot+s+christmas+pdf In PDF document text
    • http://files.naplesbesthairsalon.com/uploads/1/3/1/6/131636954/dibuki.pdfIn PDF document text
    • http://files.jameskpolk.net/uploads/1/3/1/1/131163872/672a064456.pdfIn PDF document text
    • http://files.brentolstadmusic.com/uploads/1/3/1/4/131453432/23d8482da839b2.pdfIn PDF document text
    • http://files.thegiftofthestruggle.com/uploads/1/3/0/7/130738652/fd22003.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/1/0433/6749/7880/files/wugoxeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/field_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/troy_built_snowblower_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9067/3813/files/meririsobuvojavexiwolimaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5771/7152/files/62430764676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/70006055705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/52583609445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2843/7409/files/93065152894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/27922272326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/tapemenawipatepuranaxuw.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 7

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_off0000660a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660A 3928 bytes
SHA-256: 5ed6bd86346e456dea0ff4eb6ee2b8fd54ce99c6d9b72d73b3cc6a8f57b3d21c
font_01_sfnt_off000073f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F9 5556 bytes
SHA-256: e033717a718300936e6fb8b970f55fcd2eac28b6af6c5a1ac58876520809a7a4
font_02_sfnt_off000086b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B9 10420 bytes
SHA-256: e53350ddfcd9f9e9846a76939cac8b9c71fe46343bcf8ffe523fae7a15b88903

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