Malicious PDF — malware analysis report

Static analysis result for SHA-256 c70dbe08510c5672…

MALICIOUS

PDF

83.1 KB Created: 2021-03-11 22:17:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6129785f27e910a65470bdd6e429ca9d SHA-1: b7ca03b4878c84bc9e388aa05269ad04f85ee1ea SHA-256: c70dbe08510c5672a94eb1fcda2a56ea5cf99303796c65a86b039217124c8422
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful destination. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were extracted, the embedded URL and the nature of the heuristics point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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://yafferge.ru/strik?utm_term=ninja+professional+blender+1000+how+to+work In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367960/normal_6030d444b2976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_5fd74f8b2596f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367275/normal_5feb3fc79e1d6.pdfIn PDF document text
    • http://nenegifivujaxu.mypressonline.com/what_is_the_most_common_city_name_in_the_world.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472204/normal_6014aae9cd59d.pdfIn PDF document text
    • http://narovomesizi.medianewsonline.com/calories_in_dunkin_donuts_large_coffee_with_cream_and_sugar.pdfIn PDF document text
    • http://gibelepij.scienceontheweb.net/80836889490.pdfIn PDF document text
    • http://sikazigazes.mypressonline.com/the_graveyard_book_by_neil_gaiman_audiobook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477369/normal_601fa5300a4aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445726/normal_5ffea3f4ba2ff.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/epson_xp_424_ink_amazon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425487/normal_5ffd189f03e1a.pdfIn PDF document text
    • http://gugolufixa.mywebcommunity.org/yard_machines_lawn_mower_parts_canada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444357/normal_5fca1810ddebd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tiluxusimutine.atwebpages.com/83238375998.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/marie_de_france_lanval_full_text.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/la_la_land_cafe_melaka.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/zobedaxadalamat.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/airtel_set_top_box_recording_format.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/architectural_company_portfolio.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/why_is_the_balcony_scene_in_romeo_and_juliet_important.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/pinevinurarezimi.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_off0001081e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1081E 5664 bytes
SHA-256: f8eaf2e0351598a4be7dd8f68147d345e5b2b48ed3b562cc90b1486042e67b74
font_01_sfnt_off00011b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B70 10448 bytes
SHA-256: b4c3223c2c4fd7e2447f8a58d043e03c672048d034b31733e060b3734dee4700

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