Malicious PDF — malware analysis report

Static analysis result for SHA-256 359ee3138facfac6…

MALICIOUS

PDF

87.0 KB Created: 2021-02-25 01:20:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: fc930eb0b33a1520e5020b81940711ca SHA-1: c01117ee6d452a8bedd234f3364712c8f1feed38 SHA-256: 359ee3138facfac62ca60d4f1aff71436e1ed9473903ab703148b7d4b336d218
96 Risk Score

Malware Insights

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

The file was flagged as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. An external URI pointing to 'maypoin.ru' was extracted, suggesting the document's purpose is to redirect users to a potentially harmful site. While no scripts were directly extracted, the PDF structure and embedded URI are indicative of a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wb?keyword=gopro%20hero%204%20silver%20vs%203+%20black PDF link annotation
    • http://titanovyi-filtr.ru/veloku7dal0.pdfIn PDF document text
    • http://ionatr.fun/34992506351616il.pdfIn PDF document text
    • http://bettermoneytips.com/78919769631ypubx.pdfIn PDF document text
    • http://begemotiks.fun/afk_arena_mod_apk_unlimited_moneywxzlu.pdfIn PDF document text
    • http://teplotronic.ru/rodubopibabixasisakp71gh.pdfIn PDF document text
    • http://1s.london/rode_nt1_vs_akg_p420qlxof.pdfIn PDF document text
    • http://mscredit.info/posaletanlyqzn.pdfIn PDF document text
    • http://kyukty68.xyz/28356678731s211p.pdfIn PDF document text
    • http://d2-club.ru/2753683492fiq04.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/cjbgcha/fun_reading_activities_for_2nd_grade.pdfIn PDF document text
    • https://cdn.sqhk.co/godajaxox/janPhjR/ahly_vs_zamalek_match_today.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fikuvine/xajijobukit.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/how_to_find_a_burial_plot_uk.pdfIn PDF document text
    • http://vowaxuf.rf.gd/kigudagawamegilepipakiwew.pdfIn PDF document text
    • http://nujafosedoke.epizy.com/gezon.pdfIn PDF document text
    • http://tepaduvofevog.rf.gd/halves_and_quarters_worksheets_for_grade_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/8th_class_maths_ncert_book.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/cimetiere_pere_lachaise_plan.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/bojetedinotebibudow.pdfIn PDF document text
    • http://laxunuwozen.epizy.com/masumiyat_ne_banjara_bana_diya_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/blood_cholesterol_guidelines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/mobile_legends_emblems_guide_2019.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_off000116f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116F7 5568 bytes
SHA-256: e5a2879abdb55a3db077fb636566fcc4f99016a9ff5cafe397255d49d73b7bbc
font_01_sfnt_off000129ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129EE 10740 bytes
SHA-256: 677f5cdc7932357f3043111833171829cc6dad164ee4ce55bcc0cc4dadaec444

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