Malicious PDF — malware analysis report

Static analysis result for SHA-256 66680ee609bf50fc…

MALICIOUS

PDF

49.0 KB Created: 2020-08-08 17:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e279c9faba34d756a583105f94d87bed SHA-1: d61ecbbdb377d21615ad805993dfdbf6ce2714c4 SHA-256: 66680ee609bf50fc90632094fa239b7e71e8a17c7dc00105a8145aa92dbe695f
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=acarapis+woodi+pdf', suggesting a phishing or scam attempt to redirect users to malicious content. The presence of numerous PDF links further supports a link-farming or redirection strategy.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=acarapis+woodi+pdf In PDF document text
    • http://files.hisembracinglove.com/uploads/1/3/1/1/131164260/2d5437d0.pdfIn PDF document text
    • http://files.ladukecoaching.com/uploads/1/3/2/8/132815002/tagisenonojajog_fereliwopura.pdfIn PDF document text
    • http://files.bfafairfaxbaseball.org/uploads/1/3/1/8/131856352/powipobukufosu.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/1/0440/8439/6184/files/revista_boticario_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/81422267873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5057/files/drawing_a_heart_opengl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/discord_token_file_txt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6282/0005/files/43157083007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/girotimovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/remomatowesunagiridu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3629/5836/files/download_schoolboy_q_oxymoron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/17892168862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/lascal_buggy_board_maxi_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6893/8647/files/47694170105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9787/4851/files/chief_keef_colors_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 6

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_off000082d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D2 5200 bytes
SHA-256: ffc0ac208cc3f19a8dcb53cdef84cdbbee6232ca4b8922b0b940a2d9eaca07cb
font_01_sfnt_off000094a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94A6 10140 bytes
SHA-256: 4313880f6f505624e6f7e1e291859e2224f732cdee52a9566826dd311daf34c0

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