Malicious PDF — malware analysis report

Static analysis result for SHA-256 59fb19cae012f3ed…

MALICIOUS

PDF

71.4 KB Created: 2021-02-05 15:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a1f354cf11d1e4a39b3525b1143050b3 SHA-1: 58f9250695ed2c395a3f862218d6264e33e8428c SHA-256: 59fb19cae012f3ed567b17c8f54786ddaedceb1520cb042d76b2e915097cb47b
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://baarspo.ru/wb?keyword=affixation%20word%20formation%20examples PDF link annotation
    • http://fimewot.xyz/bikefudozunipuzasobipa5fdvy.pdfIn PDF document text
    • http://xubixaxar.22web.org/scientific_journal_review_template.pdfIn PDF document text
    • http://dovulup.iblogger.org/child_development_questions_and_answers_for_tet.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/schfbid/lil_tecca_did_it_again_1_hour_loop.pdfIn PDF document text
    • https://kofavuzaxo.weebly.com/uploads/1/3/0/8/130873868/barefavivusewapawove.pdfIn PDF document text
    • https://gajifawegux.weebly.com/uploads/1/3/4/6/134649352/9f4b06b0ef2d4.pdfIn PDF document text
    • http://tranquils.space/lozawesusogizb687t.pdfIn PDF document text
    • http://trastqort.online/body_shred_calendar9ftnh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mutodavop.rf.gd/domogizejunibikuzib.pdfIn PDF document text
    • http://nazedizabif.rf.gd/reliability_in_language_testing.pdfIn PDF document text
    • http://poxobigijeteri.rf.gd/sadukosunowozoled.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/84174771818.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/56262604702.pdfIn PDF document text
    • http://nedupidanasadef.rf.gd/biography_book_report_for_6th_grade.pdfIn PDF document text
    • http://xuvufajozurez.rf.gd/xemizegogorowikibofexit.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_off0000dd64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD64 5336 bytes
SHA-256: 6d991ae339164caaab4f87f7b98798987e70495809490bb33b1b71926dc3102e
font_01_sfnt_off0000ef8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8D 9928 bytes
SHA-256: 84678874fbc34650171a27f41ede9f518201bc399a2594cab0964eba968b4e76