Malicious PDF — malware analysis report

Static analysis result for SHA-256 da02a2c646d9c0f0…

MALICIOUS

PDF

76.8 KB Created: 2021-03-23 20:59:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a3f9f8471c001602b9f5fe90676ef9be SHA-1: 8112430b4729019b94fa685ba4cef034f959de5a SHA-256: da02a2c646d9c0f07871c20b60331b161f67fc33b4662fc0218ac5b783dbae52
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://crophysi.ru/wix?keyword=life+cycle+of+a+caterpillar+to+butterfly PDF link annotation
    • http://mowuvivof.22web.org/volcano_classic_temperature_guide.pdfIn PDF document text
    • http://serikanipesemo.iblogger.org/cabrestante_manual_5000_kg.pdfIn PDF document text
    • http://gamokidawenikon.iblogger.org/xirenurasusojupibugu.pdfIn PDF document text
    • http://lawobusupovapuv.22web.org/30110590658.pdfIn PDF document text
    • http://turoxolu.iblogger.org/mivosidozoseni.pdfIn PDF document text
    • http://jibitivi.66ghz.com/what_jobs_in_the_navy_do_i_qualify_for.pdfIn PDF document text
    • http://jabakibiv.iblogger.org/how_many_calories_are_in_burger_king_spicy_chicken_nuggets.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bafuxinasu.epizy.com/63731162680.pdfIn PDF document text
    • http://fevoroxigur.rf.gd/apset_2020_question_paper_with_key.pdfIn PDF document text
    • http://runumap.rf.gd/english_phonetics_and_phonology_peter_roach.pdfIn PDF document text
    • http://sanatosiw.epizy.com/metropolis_1927_full_movie.pdfIn PDF document text
    • http://pepebejawu.epizy.com/66265561248.pdfIn PDF document text
    • https://s3.amazonaws.com/goveruduzewoxu/apc_back-_ups_cs_650.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/marketing_plan_template_for_bakery.pdfIn PDF document text
    • http://fonajuwowo.epizy.com/xaxotobakizevan.pdfIn PDF document text
    • http://piwapikefiraxi.rf.gd/65496498816.pdfIn PDF document text
    • http://sobenikirija.rf.gd/42423239806.pdfIn PDF document text
    • http://dabemekos.epizy.com/74660689102.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/trigonometry_formula_12th_class.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/question_tags_exercise_2_perfect_english_grammar.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/pidotuxepibanaxeko.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_off0000ef2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF2A 5016 bytes
SHA-256: 045853fab63a97f6bdc10588e671f5714c4b12aec700f326fdb2040acaca7988
font_01_sfnt_off00010058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10058 10468 bytes
SHA-256: c46d4ca09400835fa19673cf11294b6c8897a25ac254bbe9a3190d414c1031ec

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