Malicious PDF — malware analysis report

Static analysis result for SHA-256 f49412e42f4332c6…

MALICIOUS

PDF

61.5 KB Created: 2020-08-15 06:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e19d45855a52e9fb3655327576c5d604 SHA-1: 3c2a4bb666e91fef3629b0739ab460fb7f3e122a SHA-256: f49412e42f4332c6a94988adb68a2e60f84eb9d3d09fb79e8569679ceb33a5c3
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains text that suggests a lure, possibly related to a game or guide, to encourage clicks. The presence of numerous external PDF links, many pointing to potentially compromised or malicious domains, further supports the malicious intent. The ML classifier also strongly indicated maliciousness.

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=japan+guide+hoi4 In PDF document text
    • http://xuxuposi.strolloxcommunityoutreach.com/uploads/1/3/1/1/131164110/71cc0fd382d.pdfIn PDF document text
    • http://files.603diesels.com/uploads/1/3/1/6/131636843/3868241.pdfIn PDF document text
    • http://files.crystalridgewinery.com/uploads/1/3/0/7/130775195/zesutur-ridodebekoponoz-sidewivusuvo-tiduje.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/1/0438/8257/8088/files/pharmaceutical_calculations_ansel_15th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/xodejikavuxige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3470/9914/files/livro_admiravel_mundo_novo_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/fomujuzusutokaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/muluwanuxov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/tasagewotasaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4114/4483/files/python_data_structures_and_algorithms_benjamin_baka_download.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 2

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_off0000aed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAED7 4992 bytes
SHA-256: a7e4b11079c321c9b3cb78015b84fdd6e15f130e950a4f9a1fedc37e7d22afe4
font_01_sfnt_off0000bfd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD4 12776 bytes
SHA-256: 1877f1cabf48c7675d41f3c15b982ed9115dd42697abf69f83798bd949723c99

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