Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7ba45afc074e65a…

MALICIOUS

PDF

67.4 KB Created: 2020-12-03 11:32:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 56a59fe738fd9ba1c3c3bc2f4ddec228 SHA-1: 986c8f11d147cd74a79c7ef9613b97546aea2a22 SHA-256: f7ba45afc074e65a57df3839e0b02e0b5825eb09cc5c0bf7c9e5badc9d936721
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffking.ru/aws?utm_term=senior+financial+analyst+resume+template In PDF document text
    • https://cdn-cms.f-static.net/uploads/4412161/normal_5f9fbc36a8558.pdfIn PDF document text
    • https://winugemu.weebly.com/uploads/1/3/1/0/131070294/713627.pdfIn PDF document text
    • https://wotufoxak.weebly.com/uploads/1/3/4/3/134308946/6226523.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372682/normal_5fbee38adbb0a.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/memul/47633575209.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11628df132613bbbed3cd/t/5fc57285e6d49a06bb4be5fa/1606775429783/duzejodebi.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/but_how_do_it_know_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc325ec9955c744b54a24d6/t/5fc4ea9008845d0924247af3/1606740624657/fimisev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43375768-ef8b-4a9e-ad84-74c44b07e270/watsons_go_to_birmingham_questions_and_answer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3158d742-742f-4e42-90ef-1c4be3f3f9a1/wopaboko.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/rent_agreement_format_in_word_delhi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6445fa3bf4b14abcdaac2/t/5fc8a62cd32d012678fed41f/1606985260739/30508878507.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f8f692c50b1a1e77efcd/t/5fc448749ee0f32b87dc259b/1606699127036/nisotiwudujozijumu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11abd2bbd74065807b22d/t/5fc299ee3c6ccf69f3b33847/1606588911991/47639861643.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5f284f98375720d7e786/1606377257519/lamodekotuzewukilifatif.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_off0000cc5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC5C 5364 bytes
SHA-256: 2d760fc53697f12dea45d1f5b99854b89b542c906ec8a026e061f2e6f9af5fde
font_01_sfnt_off0000de92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE92 10016 bytes
SHA-256: f234410b90303930874d62f8416cb6b8e3c6053f940bc0cc9cf4443da820ae84

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