Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a879c640c468185…

MALICIOUS

PDF

40.8 KB Created: 2020-08-08 01:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0892e415b9a4aec5747e9db2fcc3e3c6 SHA-1: 6cf1c6d3628624292fc635f999dc8ef62321c594 SHA-256: 4a879c640c46818526a9659c1c2265aaae51ea6126cf494f460de355c1e346ea
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ceiling+fan+price+list+pdf'. This URL is embedded within the document body, disguised as a price list. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.

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.cc/pify?keyword=ceiling+fan+price+list+pdf In PDF document text
    • http://files.nathanganser.com/uploads/1/3/1/3/131379049/7dc72ba5031c6a.pdfIn PDF document text
    • http://gawowu.nushagakfurcompany.com/uploads/1/3/1/0/131070786/4427135.pdfIn PDF document text
    • http://files.en.les2lacs.com/uploads/1/3/1/4/131453982/ac2fe22.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/1/0431/8206/3777/files/76838977042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/tiwokefaxaxutogapikokupop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/wordpress_get_page_title.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7470/6853/files/kavisikofowepuxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/lajop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/fobonogofajewux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6209/9109/files/ccnp_troubleshooting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6929/3223/files/wojeziratejuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/verizon_fios_channel_lineup_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sabam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3637/6214/files/22783176952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/80689968047.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 5

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_off000061d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D7 5228 bytes
SHA-256: a0534cf9f6f51cba85f96a6e54e55824456ca484ebf9a8e61134a164c33ffd08
font_01_sfnt_off000073b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B3 10124 bytes
SHA-256: 5bc93285fdf75b7ccd36bc3e91ea0ba732920a1d901fae84ee72404b80dbb2d4

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