Malicious PDF — malware analysis report

Static analysis result for SHA-256 29bdfd812dc1c3b0…

MALICIOUS

PDF

72.5 KB Created: 2021-03-24 02:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 814f01d84bd2a6a53733b88f1dca8f0c SHA-1: 2334a0cbb5935fca8c681f11d6035235fc47c091 SHA-256: 29bdfd812dc1c3b057e0602346a712dc46145cde9aedbe7e2450133a5464803d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a URL promising a hack for 'yugioh duel links' without a survey. This, combined with ClamAV detection as 'Pdf.Phishing.Trojan', strongly suggests a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://lozipotod.ru/wix?keyword=yugioh+duel+links+hack+no+survey
    • http://geosen.net/rolezagixasazoyj1bj.pdf
    • https://cdn-cms.f-static.net/uploads/4484355/normal_60109d0bd91f3.pdf
    • http://zarewubizeno.mywebcommunity.org/fefufulizefujijexabiluniv.pdf
    • https://cdn-cms.f-static.net/uploads/4474739/normal_6027a7fe7ee0e.pdf
    • http://onlineeshop24.xyz/canadair_c-4_argonautcrrt6.pdf
    • http://jedilinosur.mywebcommunity.org/43225730271.pdf
    • http://koteyarn.moscow/what_is_collection_development_policy_in_librariesymex9.pdf
    • http://hookup681.site/how_to_start_up_music_production_companylvn2b.pdf
    • http://getallcreditscores.info/83873179050csleq.pdf
    • http://cadenalia.com/zasebefepuledararudegasaqluxx.pdf
    • http://goldalbum.ru/transmission_line_and_its_types_pptjfb9f.pdf
    • https://static.s123-cdn-static.com/uploads/4467975/normal_6008b4deb1096.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/fofeguj/9604661061.pdf
    • https://s3.amazonaws.com/tesotiwapax/future_tense_will_going_to_worksheets.pdf
    • http://wujagenak.atwebpages.com/mitemotosideniwi.pdf
    • https://s3.amazonaws.com/marimejerebo/zoninajanevewedi.pdf
    • https://s3.amazonaws.com/bopuxosavubare/aa._near_me.pdf
    • https://s3.amazonaws.com/lofese/47913342638.pdf
    • https://s3.amazonaws.com/kavalukato/77912881594.pdf
    • http://lawiferow.myartsonline.com/alphabet_anglais_phontique.pdf
    • http://sazasewugekupej.onlinewebshop.net/what_does_the_name_kinsley_mean_in_the_bible.pdf
    • https://s3.amazonaws.com/bipepezuwed/pesivubesodevaleritel.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d146.bin
fcb483b7e94f24dcad57975e46532165b3372d5f5f94147ce61671718a720f69
pdf-font-stream PDF embedded font (sfnt) at offset 0xD146 5188 bytes
font_01_sfnt_off0000e2dd.bin
3569416c1684d9dc9d7bad75d23d745f0ec3aa70df59f820061aa88341a265c5
pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DD 10528 bytes
font_02_sfnt_off000106bd.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x106BD 4324 bytes