Malicious PDF — malware analysis report

Static analysis result for SHA-256 9776fe0a6e15c59e…

MALICIOUS

PDF

83.3 KB Created: 2021-03-20 10:20:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 4f3ff0db413d5e2137ea513030d81a4e SHA-1: cb1e99972fa05ee6c6e27df5a20ef0e2652fa071 SHA-256: 9776fe0a6e15c59e26efbaaa8907f242dcf9ca8ea68b02893fedc95110eff0ee
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple external URLs, with one specifically referencing 'airtel dth packs 2020 pdf' and pointing to 'https://ponafet.ru/award'. This suggests a phishing or social engineering lure, aiming to trick the user into clicking the link for potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/award?keyword=airtel+dth+packs+2020+pdf PDF link annotation
    • http://daimontimur.org/modo_de_produccion_feudal_comercial_edad_mediafahtb.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/comparative_and_superlative_sentences_worksheetsytggw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476766/normal_5fdfdebc45cdd.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/eq5gjT3/how_to_play_go_fish.pdfIn PDF document text
    • http://kasyanbeauty.com/cycle_se_aaya_song_djmmlla.pdfIn PDF document text
    • http://autokenn.com/wemelejosutelivatieksw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376098/normal_604ac8ac0a13e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365536/normal_5ffcb374834c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481699/normal_60292576d6474.pdfIn PDF document text
    • https://cdn.sqhk.co/fabetojowuje/YgigmuI/totezibabilekejit.pdfIn PDF document text
    • http://kakigomumarob.22web.org/auditoria_forense_libro.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/hhjhb47/cgi_animation_movies.pdfIn PDF document text
    • http://draiwenstore.online/how_much_does_a_site_safety_manager_make_in_nycai1xb.pdfIn PDF document text
    • http://yourbigdick.space/57722161090bsr18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408713/normal_5fd77b541665b.pdfIn PDF document text
    • http://sukozuxari.22web.org/cordless_phone_with_answering_machine_panasonic.pdfIn PDF document text
    • http://loxapul.iblogger.org/bimifa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wofaketizezoja.epizy.com/manual_archive_outlook_2019.pdfIn PDF document text
    • http://gesesasogibigaw.rf.gd/breeds_of_rabbits.pdfIn PDF document text
    • http://lijaros.rf.gd/what_does_l_mean_on_ear_thermometer.pdfIn PDF document text
    • http://wasuwenakab.epizy.com/dozuxivajip.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A6 5572 bytes
SHA-256: fda959e8f1f601a80ec0a3f92a1b20a8b162e716febd4977ae0944eb176df126
font_01_sfnt_off0001058d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1058D 10712 bytes
SHA-256: 16c3ef47cbcfd71da433f6bdd18aa6696261686625f6cf54610eb3838ada8804
font_02_sfnt_off00012a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A4C 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1

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