Malicious PDF — malware analysis report

Static analysis result for SHA-256 56bba0073350f52a…

MALICIOUS

PDF

67.7 KB Created: 2020-12-06 05:51:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d311f2859d59aac5387291611d796cef SHA-1: a81f86ae7b15cd388fa7595f03e5638946778540 SHA-256: 56bba0073350f52ad468048127706af16044226979817133a34cb673d4c45e97
196 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
  • 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://trafftec.ru/strik?utm_term=the+house+unblocked+games PDF link annotation
    • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/rarosazat.pdfIn PDF document text
    • https://falogumirej.weebly.com/uploads/1/3/4/3/134368081/pitavi.pdfIn PDF document text
    • https://jinuvavuvebox.weebly.com/uploads/1/3/4/6/134612635/f096cfe7996.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/fijides.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383460/normal_5f94c5f2a3166.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388626/normal_5fbfa8cb6de34.pdfIn PDF document text
    • https://fepiwifir.weebly.com/uploads/1/3/4/6/134676425/fevawowofur.pdfIn PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/zikoviwodedupili.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc2b6d9e2fce462bc97aa53/t/5fc4aed6cb3e0f5771e3dbaf/1606725334870/wogojepatemebapevomubi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5057f3de5e49b55ad7a6/1606373463939/37770946671.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/bitbucket_api_directory.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/jakija.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/kamabavofilavisasop.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d4c78139af037644e8c4/t/5fcab1eeb2edc97971519bd6/1607119343443/944792189.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/how_to_see_vault_progress_mtg_arena.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_off0000cb8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8F 5412 bytes
SHA-256: bf467a3bde733cbe1e293b3609cced868d31d6544f6f434c23348ce01f508398
font_01_sfnt_off0000ddce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCE 10624 bytes
SHA-256: cc9f830188b5c7475f101aa194dde446bad366a67054f9e780846e08ef65eb39

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