Malicious PDF — malware analysis report

Static analysis result for SHA-256 80df6852729b73fe…

MALICIOUS

PDF

44.7 KB Created: 2020-08-12 18:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a484f102c9a017daea7ec24fd57ca15 SHA-1: e7794f43843f75cc162d4ff4fd613ea068f182f6 SHA-256: 80df6852729b73febdaf4b64a86edcd0532c97a2b38fb013206d5f339508212d
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to redirectors like 'ttraff.cc' and then to other PDF files hosted on various domains. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate a pattern of linking to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. The embedded links likely serve to direct users to phishing pages or download further malicious content.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=canceles+de+aluminio+pdf In PDF document text
    • http://files.everythingipromisedyouisbeingsold.com/uploads/1/3/0/8/130814056/484c8f3fc.pdfIn PDF document text
    • http://files.flagsnmore.com/uploads/1/3/0/7/130740568/venimenurator.pdfIn PDF document text
    • http://tavixek.uffnofd.com/uploads/1/3/1/4/131453133/teruwobuxinatewetoj.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/1/0431/7177/4615/files/71359851416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/29370783674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0450/9853/files/wubawabixavipone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/30828497412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/55102018192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/2438090576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5922/4480/files/51066841210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4499/3181/files/20261366425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/16598219932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/lelekefiburitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/wivebonamugixataxesesusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2088/3880/files/kosoxadelalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3414/files/zurexifadarolifoninik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7111/0310/files/congenital_heart_disease_textbook.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6344 5108 bytes
SHA-256: 4c6593f5c057f1d623deaf27420a32c1502a01796c703e788abf67d60ef76b20
font_01_sfnt_off0000748e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x748E 2028 bytes
SHA-256: ce46aa1dbbc5d4ccff2bc18f261f922d4989b70dbc3b0e65edccaa0f98527a2d
font_02_sfnt_off00007e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E14 11668 bytes
SHA-256: 6a8768a328151792d2d75c04bb6b1c94c4cd4d71cfbf84588b08c8757641016e