Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fa02da187356e27…

MALICIOUS

PDF

63.6 KB Created: 2021-02-16 01:51:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ab063a7b56ea820f02084a9849db163f SHA-1: 9499e0e1097dd382214058bccbdcefc72f6ac8d9 SHA-256: 1fa02da187356e275b70b53bcaed4d6f72f6c347bdaa84f92b71960e894e9274
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 5

  • 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.
  • 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://crophysi.ru/wix?keyword=president+paintball+games+online+free In PDF document text
    • http://zakunofukar.iblogger.org/nafadefafizoteti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373516/normal_601dbeee0c431.pdfIn PDF document text
    • https://gozaxuvo.weebly.com/uploads/1/3/4/6/134612917/674766.pdfIn PDF document text
    • http://debodopox.iblogger.org/11148173525.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/o_que__movimento_uniforme_acelerado.pdfIn PDF document text
    • http://safadixuzet.rf.gd/branca_de_neve_filme_completo_dublado.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/pomekibe.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/confluence_space_template_plugin.pdfIn PDF document text
    • http://zugejono.epizy.com/legal_guidelines_for_car_seats.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_off0000be6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE6C 5504 bytes
SHA-256: 3f47e16d032453bac99aaad4d108ba02bea6acb42e148122dc3b6382ab3fe2f0
font_01_sfnt_off0000d106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD106 9520 bytes
SHA-256: 906eeb8f28bc6abe6797e12f39e96ea09eeb847c05ef431d9009d3ba6a4d8bad