Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be404beaf2edf3b…

MALICIOUS

PDF

48.8 KB Created: 2020-10-11 14:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b7d1d53463ad6024d96f58b956981e18 SHA-1: 254a4127060b5a41e6c16c2d2d0935a5e6c3face SHA-256: 5be404beaf2edf3b6aaf4293451eca08c0b79865cc5e6e798ee8148a815034a2
194 Risk Score

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.cc/pify?keyword=moral+imperative+literary+definition In PDF document text
    • http://wibop.thunderheadstudios.com/uploads/1/3/1/8/131857114/mizibiwajiki-fasujopudilo-tuxutox-fajexe.pdfIn PDF document text
    • http://files.joegaeta.net/uploads/1/3/1/6/131606679/47bac0aa71217b.pdfIn PDF document text
    • http://puligaw.newirepair.com/uploads/1/3/2/3/132303307/genilegesakulawi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb41357f-f46c-439e-b711-b6526caa82dc/66665036135.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a9ea8f6-87ae-4b50-9a7a-966c0bc7bec1/9355035096.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85e922a0-42a9-402e-b642-cd1b6c7da966/kavudodadofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd28b958-fb79-413f-8737-283c000916ba/lirakox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f17fd75-cf7f-40f5-b8fc-e9a5f54851b2/27729611849.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff5e6f72-3f8b-4f9a-a3de-d26a551832b9/wotibuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3df6092-c899-49d6-832c-b9dbba55bc0d/94005906800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e7a5d9f-e300-4195-9204-214e4adcfe2f/43043554208.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0141c3d9-47fa-4432-bd4b-0938976ccf93/bilajifimon.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D5 5176 bytes
SHA-256: 950b2be85d31f75463b05bf46ce4e109ce88cc7a71592639cca8efafd6fd3115
font_01_sfnt_off00009374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9374 10208 bytes
SHA-256: 3bfd82c0ab927be494cb2a3aeec5608e6e67f9e60945d0866e31ae77554986ca

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