Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2ddfb7df01ad5e…

MALICIOUS

PDF

72.2 KB Created: 2021-03-11 10:05:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 2818d1cfcbf8925e3940144d18f12652 SHA-1: 1ef4a8da378bafd713c5b283a0f7b61a60c62c18 SHA-256: 6c2ddfb7df01ad5e22f5071201622773ea18d82c9e6779315266d910fa9d5d6e
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to 'ponafet.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to an award or prize, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=best+pizza+in+the+world+pdf PDF link annotation
    • https://cdn.sqhk.co/sukonazukuv/hf6Gigf/smart_goals_template_excel.pdfIn PDF document text
    • https://cdn.sqhk.co/rabovafom/j6jgJgh/bachelor_of_business_course_guide_vu.pdfIn PDF document text
    • http://magazinrf.xyz/hpi_baja_5b_flux_discontinuedl0v2s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425256/normal_60241b632d8be.pdfIn PDF document text
    • http://optarfes.com/download_insaniquarium_deluxe_3.7.2_mod_apk1k9zk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468827/normal_60008fc6cb183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393363/normal_60115b59de995.pdfIn PDF document text
    • https://cdn.sqhk.co/nakijalufiw/jjhhbAJ/hp_smart_app_for_windows_7_32_bit.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388282/normal_5fced5a73918e.pdfIn PDF document text
    • https://cdn.sqhk.co/sopaluwokaja/TBarCvv/best_apple_watch_black_friday_deals_2019_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/rekosiseweno/JC9jcQh/62468358553.pdfIn PDF document text
    • http://cardioactiveitalia.site/18923020493lmy8q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/92896e70-fe66-476d-bbd4-a349c1c31e34/12414516616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70d477d1-90ff-4f35-8fed-11ed1b48a080/colt_ar_15_sp2_serial_numbers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7adf472-9118-4bfd-84ba-3927b91cecc8/bissell_pet_pro_carpet_cleaner_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/519335b3-415a-4964-931b-7a695fe3c0b5/stock_market_live_news_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1573943-5347-42bc-b3dc-9c5124792197/turagirolatunawupobogeri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14d92bd7-50e5-4ac6-8836-3e5bbdddf9a2/sherlock_holmes_short_story_collections.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22e9e0b9-79de-45a2-81fd-ab182a254d7e/little_shop_of_horrors_broadway_cast.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_off0000de16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE16 5320 bytes
SHA-256: fecf8ab0e23f7ef7782f4e0ecf24e785f3dfd4bb867d7b255b7a22f8b92be5f7
font_01_sfnt_off0000f045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF045 10412 bytes
SHA-256: da00bb56279350be38957488efd45e0275ce2cfac02d8595222db68c8ef7989f

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