Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1f9329c5345b145…

MALICIOUS

PDF

75.5 KB Created: 2021-03-01 20:49:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d6e72c6adc60d2ad71eaffcdc1b7710c SHA-1: fc66a80bc210d062bdc03c559b6668035f332ebd SHA-256: a1f9329c5345b14550bbe105c82ca038b6a16030eb2e0176487589bff02431ce
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://leonvi.ru/award?keyword=do+you+still+get+paid+for+leave+of+absence PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4503390/normal_5febc25a9cbe1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390057/normal_5fdcb68788252.pdfIn PDF document text
    • https://ximewenidurap.weebly.com/uploads/1/3/4/6/134651426/6758447.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465392/normal_5ff518ddca574.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/92105267318.pdfIn PDF document text
    • https://juxibawazorar.weebly.com/uploads/1/3/3/9/133997202/3818081.pdfIn PDF document text
    • http://kivumokaf.22web.org/88027235257.pdfIn PDF document text
    • http://ladidoxa.iblogger.org/ahetuk_assamese_full_movie.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/beatles_yesterday_easy_piano_sheet_music.pdfIn PDF document text
    • https://vawilateg.weebly.com/uploads/1/3/4/6/134697686/5078622.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465263/normal_6001a5ed7847f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jimifodapamusos.rf.gd/lujaxuninitudojinubitas.pdfIn PDF document text
    • http://fenigubigona.epizy.com/zidebutazuvatirazokubimu.pdfIn PDF document text
    • http://zirutabu.myartsonline.com/how_much_money_has_star_wars_galaxy_of_heroes_made.pdfIn PDF document text
    • http://bodegifu.atwebpages.com/quality_management_certification_for_nurses.pdfIn PDF document text
    • http://nirirojigupe.epizy.com/fiwamefabutewazezowemoti.pdfIn PDF document text
    • http://mizixizomafupez.epizy.com/tapotenorodojejudolazix.pdfIn PDF document text
    • http://vegunag.rf.gd/rebadukavovigowuf.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_off0000e766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE766 5624 bytes
SHA-256: ee989c34c2028ee486e2970c2e5200cc1869bca93efb28611f986e25ef541745
font_01_sfnt_off0000faa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA9 11360 bytes
SHA-256: 6c1901d27783cde23c5978dfd3084d166a83f9855c9d47ce731aa14767e150cd