Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcf950345c556f8f…

MALICIOUS

PDF

69.7 KB Created: 2021-03-31 14:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ab675e2577088d0a3fccc415d5a0897 SHA-1: d612388369b8a6c923707bd3b5076e7199a73161 SHA-256: bcf950345c556f8f11f579b6b595260441807111aae5243cd258b7e3e62e29ab
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and a machine learning classifier. The document body, though heavily obfuscated, suggests a lure related to a 'peaceful woman explains why she carries a gun quizlet'. The presence of multiple embedded URLs, including one that is part of a known malicious domain, indicates an attempt to redirect the user to a compromised or malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=a+peaceful+woman+explains+why+she+carries+a+gun+quizlet
    • https://cdn.sqhk.co/dodirorip/jCgfQid/lafowamada.pdf
    • https://cdn.sqhk.co/lupokuna/a9c9eaX/playstation_5_release_date_and_time_walmart.pdf
    • http://dipazekonowa.mypressonline.com/fasadiboxizavasubeguzogaj.pdf
    • https://cdn.sqhk.co/nowavutu/gchjW0i/printable_math_flashcards_multiplication.pdf
    • https://cdn.sqhk.co/viposaxa/0hgdbup/tilopixenifusesizon.pdf
    • https://cdn.sqhk.co/zarejesorufo/jhujfib/2269685961.pdf
    • http://websporizle3.com/pixeporuzevqmbg.pdf
    • https://cdn.sqhk.co/janezewufaj/igrMszl/mystery_word_puzzle_the_bill_of_rights.pdf
    • http://wodedutipif.medianewsonline.com/sri_chaitanya_charitamrita_in_bengali.pdf
    • https://cdn.sqhk.co/wenegifuteg/pggjgeT/72126381852.pdf
    • http://dumigegin.medianewsonline.com/szckte_yap_test.pdf
    • https://cdn.sqhk.co/xuxozowaki/XW9Sc6H/news_break_local_breaking_stories_us_headlines.pdf
    • http://ragofilud.medianewsonline.com/auditing_assurance_services_in_australia_6th_edition.pdf
    • http://mobeditobaxul.scienceontheweb.net/sql_aggregate_functions_examples.pdf
    • https://cdn-cms.f-static.net/uploads/4504568/normal_601fd18b5d7ff.pdf
    • http://usacreditreport.info/leica_m6_ttl_0.58_vs_0.72je5q4.pdf
    • https://cdn-cms.f-static.net/uploads/4530578/normal_6047b59ca35d3.pdf
    • https://static.s123-cdn-static.com/uploads/4375344/normal_5ffb723aa2a34.pdf
    • http://busforpay.online/82740240809iqhmw.pdf
    • http://zarabatyivat.ru/mahabharata_in_kannada_languageot0wh.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bisiku/dobejorixexa.pdf
    • https://s3.amazonaws.com/wovugi/archinteriors_vol._43_for_blender.pdf
    • https://s3.amazonaws.com/jadere/rectangular_prism_template_maker.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d00c.bin
33d292606211a4c08e2df58b0ef704bf8dec58abf2b61474ff5cdb4b4e2e5ebe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD00C 5856 bytes
font_01_sfnt_off0000e3fa.bin
b44aeba4f4ce690a9f4f9ced91a2efb6002c027cbca94e410b9ed491a53b4e86		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FA 10476 bytes

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