Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d2c03bc6c1ec00…

MALICIOUS

PDF

69.8 KB Created: 2021-02-13 13:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bb2696ea1e4d8fd07209cda3a26f07a1 SHA-1: 9bbc087cb3d8d230e96225b1251f5249e0fd98e2 SHA-256: 14d2c03bc6c1ec006fc9568486d21a8f625c8c681a06d14cdca6cf312a3d52a4
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://druttle.ru/wix?keyword=huye+de+las+pasiones+juveniles+sermon PDF link annotation
    • https://nofiluwovix.weebly.com/uploads/1/3/0/7/130739726/tatarexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373778/normal_5fd21c589f345.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416502/normal_5fd03aead8c39.pdfIn PDF document text
    • https://wigadanoj.weebly.com/uploads/1/3/4/4/134404864/ac7a4.pdfIn PDF document text
    • https://cdn.sqhk.co/katutilit/k0fQia3/gomazerukurelodaselaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383915/normal_5fde86ce409be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489587/normal_5fc7581e93407.pdfIn PDF document text
    • https://tunibedexorole.weebly.com/uploads/1/3/5/3/135350281/sunor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408879/normal_6009fe87de703.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404987/normal_5ff545afedbc0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fukefuxatolu.epizy.com/conway_corporation_tv_guide.pdfIn PDF document text
    • http://sevaguv.rf.gd/tikufusexevuvadi.pdfIn PDF document text
    • http://pabipinipimano.epizy.com/84801057374.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_off0000d1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F1 5304 bytes
SHA-256: a3aea680800cb69ab2b51a5809423c4a27057eba5a9ec2dfb078ee23da3e4025
font_01_sfnt_off0000e3f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F7 11508 bytes
SHA-256: 1a0db410c9795030a9f486e190a7f44924b0ad2675896c12530ab98f7f88cac6