Malicious PDF — malware analysis report

Static analysis result for SHA-256 d06fb50a1598316b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-24 00:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37ed3abdc844bbe54ee79099939427a8 SHA-1: 666df6ed449eb99986441e2614a1acd80ea15f24 SHA-256: d06fb50a1598316b7050695f7febd320d402436ce9ef74d96b32c4890c41316a
234 Risk Score

Malware Insights

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

The PDF file contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It embeds numerous links, including a critical redirector link to 'ttraff.com', which is associated with malicious activity. The document body also contains the same malicious URL, reinforcing the lure. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.com/pify?keyword=moto+android+7.+0+frp+bypass+apk In PDF document text
    • http://files.vikingsoul.net/uploads/1/3/1/4/131406258/wasaluwozasobo.pdfIn PDF document text
    • http://josagena.weepingwaterlibrary.org/uploads/1/3/1/4/131437363/ruxusulevukitobudesi.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/1/0432/9019/8180/files/fefuwojowiwes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6794/8706/files/how_to_highlight_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7764/8027/files/australia_email_address_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1307/0238/files/31889400541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/gugoguzibule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3016/7203/files/cassirer_philosophy_of_the_enlightenment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/bikogupixusumaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3029/4177/files/bank_of_baroda_loan_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/63581354458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0459/6122/files/mezisopemavuwof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1812/4445/files/blade_and_soul_pc_game_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/dowipezuwujopuboge.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 8

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_off00005c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C95 5568 bytes
SHA-256: 813af46eebed3768d7d0ff31ac9e59f3be19e48e71e8cfb375199701486dc6f2
font_01_sfnt_off00006fa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA5 9908 bytes
SHA-256: 3cd953ef90a59846462f9a6966add7865cbbf61ece3500d924bb5b91f0d2ebe4

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