Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f5acf7375ee52a3…

MALICIOUS

PDF

56.4 KB Created: 2020-08-21 23:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54de95d7750581aba0ec26f549665398 SHA-1: eb756765f711b09fb72d80b0ae56c9ff06ededa1 SHA-256: 8f5acf7375ee52a3e5f05c82408d78f93cea3a0c0ef6c16be9a59cffdaa81fa2
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a link farm on cdn.shopify.com. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', which is likely used to direct users to malicious content. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=belief+systems+chart+pdf', suggesting a lure to a malicious site disguised as a PDF 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.ru/pify?keyword=belief+systems+chart+pdf In PDF document text
    • http://files.monroecounty2020.com/uploads/1/3/0/8/130873708/7560252.pdfIn PDF document text
    • http://pisalo.ljhfoc.com/uploads/1/3/1/0/131070089/xebujimuludexuw_divonokirifulo_netozo.pdfIn PDF document text
    • http://files.masshurricanes.com/uploads/1/3/2/7/132740204/7648288.pdfIn PDF document text
    • http://nuwokumeb.apachetrailchapter.org/uploads/1/3/1/1/131164112/fupuwipujas-goroz.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/1/0432/4563/3699/files/mimemikijiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5069/5830/files/jojabipebibilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2975/6064/files/cbre_bi_monthly_research_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/dufik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/58037707504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/vuvijiwopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8752/files/nuzunaran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2312/2077/files/zunupotejufuregetajum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/fallout_4_settlement_management_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1924/7514/files/28486766061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6916/4968/files/alternate_and_corresponding_angles_worksheet.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 7

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_off00009f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F6E 5544 bytes
SHA-256: 9c2693785ef1ddce6c6a24093c7203d8e03fab15fd7d622358e8efbd45b29b73
font_01_sfnt_off0000b229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB229 10124 bytes
SHA-256: f5b3870fdfecd68df809779b285cfe672a18f4cbef37bae33e03620e3ef94165

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