Malicious PDF — malware analysis report

Static analysis result for SHA-256 0226225dc4963ec9…

MALICIOUS

PDF

70.9 KB Created: 2021-03-01 05:04:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dbb1c6ed5599c810e895d28d8fc48462 SHA-1: d0e7355f15069956d27c0ef019ae0ee1066f7042 SHA-256: 0226225dc4963ec909f781309c5cf95df180169e3f9ef8022ab7d2ae3618509a
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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
  • 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://midufefew.ru/award?keyword=ebt+card+customer+service+number+pa PDF link annotation
    • https://poxapoxidofex.weebly.com/uploads/1/3/4/0/134016688/61cd2e509.pdfIn PDF document text
    • https://wudumimimi.weebly.com/uploads/1/3/4/3/134356267/besebi.pdfIn PDF document text
    • https://sobopagep.weebly.com/uploads/1/3/0/8/130873740/juzokidimuku_zofukaw.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/english_literature_online_courses_in_india.pdfIn PDF document text
    • https://deparabijafepoj.weebly.com/uploads/1/3/4/0/134040416/31648855be03dda.pdfIn PDF document text
    • https://wesuzekubiw.weebly.com/uploads/1/3/1/6/131607103/8984416.pdfIn PDF document text
    • http://thefortykuti.com/volumuwadenidoxoch4i4.pdfIn PDF document text
    • http://nekidifuton.medianewsonline.com/sony_dav-tz140_5.1_review.pdfIn PDF document text
    • http://drive4mclaneeffingham.com/grade_5_maths_book_sinhala5sl39.pdfIn PDF document text
    • https://guzajemifuraruv.weebly.com/uploads/1/3/0/8/130874286/2dcd72258b29.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/zerejibixupav/brave_full_movie_in_tamil_free.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/dizeg.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/76239330763.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/mikaxupetoditagadowikosu.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/gemezutewinixixa.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/gastroscopy_report_apparent_mucosal_junction.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/93201271749.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/gobevuvomodusuzofifiredux.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_off0000d9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A9 5344 bytes
SHA-256: f771f2c0ecb2247dc551d3dc7c0e553f479100eb810be47aaa9151763534206b
font_01_sfnt_off0000ebc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC3 10128 bytes
SHA-256: 8afa177d01d4f3b39921632295b57e76a2822e7b520e4bad4ff97b3d9148badf