Malicious PDF — malware analysis report

Static analysis result for SHA-256 817ef0542b4c6781…

MALICIOUS

PDF

49.5 KB Created: 2020-08-26 02:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6783fdb87a30b24e7a91bfcda14f3d63 SHA-1: a724c0f968bccb67fc46dae708e6668ef6ad8a6f SHA-256: 817ef0542b4c67815b255f1727be9a408855f1e6ef116ff54c084b965c9a1dd0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body itself contains obfuscated text and a URL that appears to be part of an SEO link farm designed to lure victims. The primary malicious URL identified is https://ttraff.cc/pify?keyword=half+marathon+training+schedule+for+beginners+8+weeks, which is likely used to distribute further malware or phishing 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=half+marathon+training+schedule+for+beginners+8+weeks In PDF document text
    • http://files.julioachavez.com/uploads/1/3/1/4/131437919/pelidisasezex-panibemuvo-pilas.pdfIn PDF document text
    • http://vogoman.jodyrathgeb.com/uploads/1/3/2/6/132695615/magaposewevi.pdfIn PDF document text
    • http://files.elizabethadabale.com/uploads/1/3/1/4/131437689/57613a8de.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/1/0435/3009/2696/files/lightning_flame_dragon_roaring_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/81467580330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6913/7305/files/chauvet_obey_70_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6134/6466/files/fumesonavosetidom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/alpha_1_antitrypsin_deficiency_liver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5387/0232/files/luneruzigimotorabekeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2626/6782/files/user_authentication_mechanisms_in_network_security.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/nidupat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3537/7307/files/91211783676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5321/2060/files/50418790054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/wedupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/28582192578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1572/4443/files/18419951071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/23623487725.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 4

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_off000080d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D7 5888 bytes
SHA-256: 945b2760afd2022b791ce4f55a713aec36a595b36985fe2ea27255e36f9efbbe
font_01_sfnt_off000094c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C4 10352 bytes
SHA-256: e0b618b5a6ba9fb5fb3e76188f6a541b72a60042dbaafe6473eda7fa3d42f078

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