Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bcfe2eb08d9ccf1…

MALICIOUS

PDF

71.6 KB Created: 2021-02-28 22:03:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dbf8cda8d48bd9aadc572399081db95e SHA-1: 6b1084d630d9f41d964a16c1844d3f63c0227879 SHA-256: 1bcfe2eb08d9ccf161bc8cf1e3136992cb9afc933ef86ba9b2a1a925456a92e1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/wix?keyword=tilt+tv+antenna PDF link annotation
    • http://vugekowuzujed.scienceontheweb.net/vapixuwitifak.pdfIn PDF document text
    • http://cetakchantek.com/sodium_nitride_is_ionic_or_molecularobjwa.pdfIn PDF document text
    • http://tizukovedatuv.22web.org/47606307735.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485689/normal_5ff4b9524d408.pdfIn PDF document text
    • http://tuduvodakep.mypressonline.com/nixalotixuxijiwaletug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393363/normal_5fed457851fda.pdfIn PDF document text
    • http://bepedegikojafeb.22web.org/zibaxikavuliruwatopun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426261/normal_5ff29eecc78b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402724/normal_5ffb4c2171168.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371786/normal_5ff6588be1672.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426814/normal_5fea38bd268cf.pdfIn PDF document text
    • http://edalovert.xyz/cuantos_metros_tiene_un_kilometroh98l9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://renaxodemebi.rf.gd/51031395334.pdfIn PDF document text
    • http://tuxabatadifu.onlinewebshop.net/how_do_i_change_the_battery_in_my_schlage_door_lock.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_off0000dfe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE2 4412 bytes
SHA-256: 40a86273e3fde9b4fc7bfaa9079263212b6f1a21806bbfaea2468aebf01be615
font_01_sfnt_off0000eefa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFA 10348 bytes
SHA-256: 2034a898591143c28ae0dd47ea77e6a4537897b1e795d0750a4bb71a7545aeea