Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0ba81dfa01c8a2b…

MALICIOUS

PDF

42.4 KB Created: 2020-08-04 19:27:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47f0ac6856f24a8beb4a5b6d1e979cb1 SHA-1: c4a7f3410a3e48420bffee5952e7bccb2fde0e01 SHA-256: f0ba81dfa01c8a2b280be9cd0aa162e57f448e3fbc0a3a39807c9598b745eb95
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and suggests a lure related to 'cavernomatosis portal pdf'. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for credential harvesting or malware delivery. No scripts were extracted from this sample.

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.ru/pify?keyword=cavernomatosis+portal+pdf In PDF document text
    • http://files.goodwin-niering.com/uploads/1/3/1/4/131409526/nuvoxupivabulul.pdfIn PDF document text
    • http://files.777worldwidebibleprophecy.com/uploads/1/3/1/6/131606467/digixana.pdfIn PDF document text
    • http://files.kytaonline.com/uploads/1/3/2/7/132710753/1230962.pdfIn PDF document text
    • http://files.sharonviewcorpcenter.com/uploads/1/3/2/7/132710765/0475cc.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/1/0433/8260/3927/files/27206868099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1139/2167/files/risk_management_plan_example_for_business.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0378/8959/files/mercruiser_4._3_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/27660202946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/33625392120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/ncert_biology_books_for_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2960/8101/files/19691750831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0775/3888/files/71182377946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/rujakurisumekesonuvuviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/97261863201.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 8

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_off00006831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6831 5152 bytes
SHA-256: 30a9174011f2e7844e9705793f1e02e248341595cfb75330b31c0e14e78738d8
font_01_sfnt_off000079a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A9 10372 bytes
SHA-256: ca79a7aeabb17e0b55e53d21ac7933f6d60ba55c018a8a2732c52ff6542e7b48

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