Malicious PDF — malware analysis report

Static analysis result for SHA-256 90e34e73a1520e99…

MALICIOUS

PDF

81.1 KB Created: 2021-03-11 08:53:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cd345866d475bf6f2436b70746f4e1a4 SHA-1: 1613e187583c68e6c6c6246b1fa1d72db5a3f135 SHA-256: 90e34e73a1520e99cb9eedda2d4e11d17e19d65a4dc23c447d86a42b41fe14bd
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 0.9994

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://vilenefex.ru/award?keyword=presuppositional+apologetics+stated+and+defended+pdf PDF link annotation
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/665845.pdfIn PDF document text
    • http://gagerovovus.22web.org/metal_gear_solid_4_ps3_cheats_eingeben.pdfIn PDF document text
    • http://rolorutebu.sportsontheweb.net/88257125706.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/descargar_driver_impresora_samsung_clp_325_gratis.pdfIn PDF document text
    • http://gigedela.iblogger.org/rate_the_movie_inferno_2016.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/how_to_read_your_blood_glucose_meter.pdfIn PDF document text
    • http://serviceforyou.site/455034950130zaur.pdfIn PDF document text
    • http://swiss-gear-top.xyz/powersmart_db7651-24_engine_oils3dwr.pdfIn PDF document text
    • https://wenabavur.weebly.com/uploads/1/3/1/3/131379405/2508139.pdfIn PDF document text
    • https://xizirujikalowev.weebly.com/uploads/1/3/1/4/131454807/kinalimimupaliwi.pdfIn PDF document text
    • http://wuxapogetal.iblogger.org/obsession_song_video_djpunjab.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/wujodibu/abhimaan_movie_song_bengali.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/70183902740.pdfIn PDF document text
    • http://tisilakifejil.rf.gd/english_literature_textbook_high_school.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/lixusobewatu.pdfIn PDF document text
    • http://vadudax.epizy.com/xuroz.pdfIn PDF document text
    • http://birofasadonu.epizy.com/business_plan_powerpoint_presentation_format.pdfIn PDF document text
    • http://patepuxowibano.rf.gd/xawimobuf.pdfIn PDF document text
    • http://xipanizi.myartsonline.com/the_question_behind_the_question_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/bootstrap_4_dashboard_templates_free_2019.pdfIn PDF document text
    • http://jufosuliz.epizy.com/wow_vanilla_engineering_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/rivunuzulinerufoma.pdfIn PDF document text
    • http://retejades.rf.gd/rapid_set_cement_data_sheet.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_off0000fcbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBF 5324 bytes
SHA-256: f2a6c0f7941ea9ca0fec282b2a27595b1e796c34a57ad376fde9afe615956820
font_01_sfnt_off00010eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EEE 12324 bytes
SHA-256: 16a399cd523b0a94bdfc9742301468c1151b65676db2e730e3e3ec526edead9a

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