Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df188b2e323eb45…

MALICIOUS

PDF

41.7 KB Created: 2020-08-07 06:31:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25db9c871f9ebe3b60d16225e310b024 SHA-1: 662a1c92f6aea5747510f561ad36d950dc27cc0a SHA-256: 6df188b2e323eb4566ca4dcffed343fe360d5c83c9c89235b468b0b9bde2a0a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded links that redirect to malicious infrastructure, specifically identified as a redirector for SEO link farming. The primary malicious URL observed is https://ttraff.cc/pify?keyword=texto+argumentativo+y+expositivo+pdf, which is used to funnel victims to potentially harmful content. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on Shopify, suggesting a phishing or scam attempt disguised as a document download.

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=texto+argumentativo+y+expositivo+pdf In PDF document text
    • http://files.waymoretrans.com/uploads/1/3/2/6/132681901/begakodakabibulivaru.pdfIn PDF document text
    • http://files.rowanfirstyearwriting.com/uploads/1/3/0/7/130739379/vedumilagex_wexifegaki_tafawufinujixa_danoxedafog.pdfIn PDF document text
    • http://files.carolynmartinodesign.com/uploads/1/3/1/4/131453896/4483363.pdfIn PDF document text
    • http://files.craftofscientificwriting.com/uploads/1/3/1/4/131437765/vusedavesulu_ratalemos_bakojedif.pdfIn PDF document text
    • http://files.mb-freestyle.com/uploads/1/3/1/4/131453124/gegukogoloro-kakopetedejes.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/1/0434/4587/8950/files/44669379772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/fallout_4_enhanced_vanilla_bodies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8962/3208/files/13988834862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/26096375396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0033/8331/files/1566400801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/algebra_formulas_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/oxford_discover_2_workbook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2229/9815/files/gta_5_how_to_install_gameconfig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7175/0823/files/96340735165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6631/8230/files/melod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4687/8882/files/zodenar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/80135653156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/konajuzeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3248/files/78378970821.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6375 5508 bytes
SHA-256: fe0a3fd896fd53bbd41d2ef2d9077045962e030edfdb04e7cabf14d7fc66b491
font_01_sfnt_off00007631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7631 10952 bytes
SHA-256: b1459c6274ce561daa091422f72be349a51f9b92c39eb547e39fc0ae6704814f