Malicious PDF — malware analysis report

Static analysis result for SHA-256 d545e66093bc84d7…

MALICIOUS

PDF

75.5 KB Created: 2020-12-17 15:41:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 6d397bf5cf0218de3d1f2ac75863194e SHA-1: 3609de5ffa113e9381664dea389c98b44f3ddbd8 SHA-256: d545e66093bc84d7fa991a06c9c021e70c10b42f49702e52e34be4a886d0b441
262 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to trick users into downloading further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs and the document's structure point towards a phishing or scam attempt disguised as a legitimate download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gettraff.ru/strik?utm_term=numerology+and+the+divine+triangle+pdf+download In PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rezareludufiven-voxodopi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/9dfd1291-c6cf-4c3b-b4a5-bd3db9a59d96/perosekogap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17b78a7a-bd17-44c2-8fff-172012182eea/learning_python_o_reilly.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdf665e68b41342baa4c43/t/5fd5f90c102ca46975d84cb6/1607858450399/wabepovasovigitudazasa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6fa158651a04751952937/t/5fcec550509e863c681c7503/1607386449046/limajobazerixumetir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d82e07d-ccd1-4a29-b468-9ab8a1a84269/joy_mangano_miracle_mop_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4774460-b69c-448e-afab-a2a525474b1e/7192284717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cba4049-427b-45bf-987f-d406e14a7bd5/lucius_malfoy_wand.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9744159-76b7-4fd4-b5f8-90d1298c3061/nijowevelut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a1175cf-7707-4d97-bbef-bd2265c27220/us_constitution_test_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd972b4e-44cc-4c7b-9474-eb6601fae8c6/36006400779.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d1ce2e2-3915-4a3c-9a82-81b2d7384a6e/orchid_leaves_turning_yellow_and_wilting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0af5098f-4de5-429e-ad23-a8cd1a5ace4e/47866960256.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_off0000dad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD8 5380 bytes
SHA-256: 1550448ace2ae23b8079ecb037152a75a4b1c220294fcca2e951228b3e32c433
font_01_sfnt_off0000ed16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED16 10784 bytes
SHA-256: ce90baea52e600990b24f7433c13094bdef6ed332372341f57cf811c5c5613aa
font_02_sfnt_off00011226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11226 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3