Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2d581f8f810ac84…

MALICIOUS

PDF

70.1 KB Created: 2021-03-04 01:38:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 633c742cd25a673ca285f9528db4176f SHA-1: b03c54a984a7f916bd6736f2b20adc434b07aa70 SHA-256: b2d581f8f810ac84d8613c91df7f3ecf07398918388d6999fdc4c2d9ad849367
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/wix?keyword=fishbowl+socratic+seminar+rubric PDF link annotation
    • https://mevemedetu.weebly.com/uploads/1/3/1/8/131871578/6398061.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/attack_on_titan_movie_part_1_review.pdfIn PDF document text
    • https://cdn.sqhk.co/penunotati/TDWTE5h/26992876272.pdfIn PDF document text
    • http://accueilcmb.com/competency_based_questions_for_team_leader26y9z.pdfIn PDF document text
    • http://lnstagram-blue-badge-form.com/detex_eax_500_spec_sheet9fll5.pdfIn PDF document text
    • https://disovipogazita.weebly.com/uploads/1/3/1/3/131398104/zisegususu-mujupa-bilemufewebes-jufitimiteb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mifajep.rf.gd/71622118868.pdfIn PDF document text
    • http://magegefopo.atwebpages.com/what_does_gram_positive_cocci_mean.pdfIn PDF document text
    • http://fiwusinuba.rf.gd/hacksaw_ridge_2016_full_movie_480p.pdfIn PDF document text
    • http://furakazipekili.rf.gd/weekly_employee_schedule_template_monday-_sunday.pdfIn PDF document text
    • http://gewagopixinilu.rf.gd/fox_sports_channels_tv_guide.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/sotek.pdfIn PDF document text
    • http://temomij.epizy.com/organization_chart_free_template.pdfIn PDF document text
    • http://xotaferuju.myartsonline.com/plantronics_backbeat_sense_-_wireless_headphones_with_mic.pdfIn PDF document text
    • http://masusekokuberex.rf.gd/abida_parveen_songs_mp4_free.pdfIn PDF document text
    • http://goromanoza.rf.gd/sogokikijabu.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_off0000d825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD825 5224 bytes
SHA-256: 51d101791844c88953bd32ecaf0aa460cd51a0e2c09a7608a718cb389c39e49b
font_01_sfnt_off0000e9d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D7 9944 bytes
SHA-256: f8930405034e0af968c61c4333c90d21a7c112813c5d2a57a24af70390c8b14a