Malicious PDF — malware analysis report

Static analysis result for SHA-256 2172e28be8983d02…

MALICIOUS

PDF

222.4 KB Created: 2020-08-25 03:17:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49e9806ab09d7818b8c4d7fb6a3b970b SHA-1: c5f63d47d96c449343610386f0ec7d8ce34bbfe3 SHA-256: 2172e28be8983d0207143b9d8e452d670faf596c3c76e9ea09346aa46eee64e0
142 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=infective+endocarditis+treatment+guidelines'. The document body, though heavily obfuscated, contains this same URL, suggesting it's the primary lure. The heuristic 'SE_URGENCY_LURE' further supports the phishing pretext by indicating the presence of urgency language within the document, aiming to prompt immediate user interaction with the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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=infective+endocarditis+treatment+guidelines In PDF document text
    • http://files.rycroftlabradors.com/uploads/1/3/2/6/132680813/zisojiva_gorawuzi_rodewatadiwa.pdfIn PDF document text
    • http://files.asnmassage.org/uploads/1/3/1/1/131164153/1423542.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/1/0434/3873/5512/files/99522530811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/buxavugodove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/check_jupyter_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8358/5949/files/98927473720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7991/6963/files/35748742394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/pemaxotevofigajefokikida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/motonopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5215/files/risex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/jepigofililoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7157/2885/files/html_to_php_page_break.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8913/files/nuped.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_off00032a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A74 5340 bytes
SHA-256: 541c46322f4f80b8d98cac847fee3b90cd0b9898c26f07646daf66eb2bc583f4
font_01_sfnt_off00033c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C83 14784 bytes
SHA-256: f1b2a4896e2699b5c38e80920858d005642cf28b81bc05f89cd3379f022cacf5

Open this report in the interactive analyzer, or submit your own file for analysis.