Malicious PDF — malware analysis report

Static analysis result for SHA-256 6642201660c252da…

MALICIOUS

PDF

35.5 KB Created: 2020-08-22 10:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b759cd205912184f862574b8f061fc8d SHA-1: 7bfe7dfa46dd20dbde76e9ab15e1656194d824a5 SHA-256: 6642201660c252da0038d85507d13b72e3ba03d3a18da0048535bdc9ec4c0d8c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a link farm designed to redirect users to potentially malicious content. The primary redirector URL is identified as malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=cg+love+status+video+2019, suggesting a lure to disguise the malicious redirection.

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=cg+love+status+video+2019 In PDF document text
    • http://files.serenitypsy.com/uploads/1/3/0/8/130874031/4433477.pdfIn PDF document text
    • http://files.sagharborflorist.net/uploads/1/3/0/9/130969731/tafufirivisazobujeg.pdfIn PDF document text
    • http://files.rockheightsvacationrental.com/uploads/1/3/1/3/131379099/bawesokusobaler-wagob.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/1/0434/5797/0328/files/pokulibotutiguzamazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8783/7849/files/advanced_vocabulary_synonyms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jidaxuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4688/3748/files/cielo_lio_2_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/17673888067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/10798489223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3123/1644/files/8793781368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91146339154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/36723574102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/5199468324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8282/5376/files/belajar_gitar_blues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruwisosipopiwusanitilowaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/classroom_english_vocabulary.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_off00004e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E09 5344 bytes
SHA-256: f4be08956ae5637af6d8e55bf2683db413058fd2e4c0811ed081044fc75c87b7
font_01_sfnt_off00006056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6056 9644 bytes
SHA-256: d8beefc7b191a86c57480482f3bee2e042357db48ee415616dc51bf4c07bf34b

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