Malicious PDF — malware analysis report

Static analysis result for SHA-256 412a138c41351110…

MALICIOUS

PDF

40.0 KB Created: 2020-08-14 04:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6df9ddc5b3580f6c6341193a7d2e0fe SHA-1: 62c729915b92f57409de6a5ddad2b2f7fb52c652 SHA-256: 412a138c413511106676d85a6aa64870b5f7253db2068f8b75eff8c3b9e7722f
194 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to numerous external PDFs, with one primary link leading to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/wb?keyword=vicks%20vaporizer%20manual%20v188', which is identified as a malicious redirector. This suggests the document's purpose is to lure users to malicious infrastructure, likely for further exploitation or credential harvesting.

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.ru/wb?keyword=vicks%20vaporizer%20manual%20v188 In PDF document text
    • http://files.greendeckops.com/uploads/1/3/0/8/130814475/nonomafojur.pdfIn PDF document text
    • http://files.tyreljstarks.com/uploads/1/3/1/6/131606923/5949269.pdfIn PDF document text
    • http://wavev.areyoureallybringinghim.com/uploads/1/3/1/3/131398091/xejamupexirim.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/1/0430/4856/6933/files/how_to_add_directory_to_path_linux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6605/files/kagim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/radio_shack_electronics_learning_lab_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0831/files/34435501466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4895/9142/files/fugefozesevuluwosinuvob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6562/6015/files/ensayo_de_bienestar_social.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/17440328946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6853/8521/files/90706624312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5035/3318/files/kezezunamivijotalule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2906/7933/files/27121641548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/21882084494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2679/1075/files/kalnirnay_calendar_2020_english.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_off00005e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E82 5464 bytes
SHA-256: 4197db3cd558998a958dae3d0f3b08309a424f6df44a64c0069a954620333864
font_01_sfnt_off00007115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7115 10008 bytes
SHA-256: 13a2fc557e4e59b52bd5bbe60de89836c56fde1f653fc72572b18856c24538a2

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