Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8ce0775ddab978…

MALICIOUS

PDF

71.3 KB Created: 2021-03-06 11:19:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b7cc239a5b7c4fa1d480b75a2fbd00fc SHA-1: 3edf3756ae9a265904ba37eecf21c84a696350a9 SHA-256: aa8ce0775ddab9789f4806a06507ee0b788162f56480e33bb5500d1e1136f822
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://kuzutuzo.ru/award?keyword=10+nautical+knots+to+mph PDF link annotation
    • http://sell-toclick.online/what_is_the_best_book_on_time_managementf3z7a.pdfIn PDF document text
    • https://widosutolitidaf.weebly.com/uploads/1/3/4/8/134847614/lujasovowewes-rowob-narasiditat.pdfIn PDF document text
    • http://magnifioco.site/who_does_apollo_end_up_with_in_the_trials_of_apolloce6qj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426695/normal_5fd0d96e4a8f8.pdfIn PDF document text
    • http://copyrightshelpcenter.com/cgnat_mikrotikhcdzj.pdfIn PDF document text
    • https://xizirujikalowev.weebly.com/uploads/1/3/1/4/131454807/72d5126.pdfIn PDF document text
    • https://xiruzukigipimog.weebly.com/uploads/1/3/4/8/134865515/seremanujata.pdfIn PDF document text
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/pudedolaxoteguzimiwo.pdfIn PDF document text
    • http://xtina.online/la_belle_et_la_bete_evaluation_6emej6mq8.pdfIn PDF document text
    • http://thiswaytovogue.com/navy_seal_scuba_suit9i8h9.pdfIn PDF document text
    • http://electriccannoz.club/13235899745odw5c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472204/normal_5ff9c577935c6.pdfIn PDF document text
    • https://fanazogi.weebly.com/uploads/1/3/0/9/130969494/5562273.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457592/normal_5ffd9a7a4985c.pdfIn PDF document text
    • http://site-shop.xyz/what_questions_do_you_get_asked_at_a_high_school_interview6csfy.pdfIn PDF document text
    • https://zemapefim.weebly.com/uploads/1/3/4/4/134485651/60da25.pdfIn PDF document text
    • https://pivatebovuwize.weebly.com/uploads/1/3/0/7/130775292/xokime_jozozo_fifudurugulilef.pdfIn PDF document text
    • https://paxuxitusokewu.weebly.com/uploads/1/3/1/3/131380341/7323766.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vosimamasi.epizy.com/27818765177.pdfIn PDF document text
    • http://kiduxoz.epizy.com/12856644808.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_off0000dabc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABC 5240 bytes
SHA-256: f0aab0884e8bfd7f3d1807fbdeefd34bb3f41793b153553fb1942632f40197b9
font_01_sfnt_off0000ec72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC72 10268 bytes
SHA-256: 31f5b1de3db4e4b82e7863d78e749e3706cb06d323256837f71091e0f6cf8fdc

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