Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a7287703d907dbd…

MALICIOUS

PDF

75.7 KB Created: 2021-03-24 04:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b06b7ea37c83f23f41974953b911e8b9 SHA-1: 49fa7bd5a2ca04a3553ff80507e1609273215bea SHA-256: 9a7287703d907dbd9b0e15380f8039ecd1e5857ebd0ef575ef101fea890e768a
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=overview+introduction+to+waves+worksheet+answers PDF link annotation
    • http://testertumentum.space/55065968685yu7ua.pdfIn PDF document text
    • http://d2-club.ru/richard_dotts_audio_booksjm32d.pdfIn PDF document text
    • http://dipunag.getenjoyment.net/sapijorezizipixo.pdfIn PDF document text
    • http://gigezojiradof.scienceontheweb.net/effortless_english_speaking.pdfIn PDF document text
    • http://smartcreditus.info/86473382431r3fqa.pdfIn PDF document text
    • http://zoom-omsk.ru/ecology_the_economy_of_nature_test_bank1l9am.pdfIn PDF document text
    • http://tideboweped.medianewsonline.com/paxisosata.pdfIn PDF document text
    • http://zokasup.22web.org/mv_btob_beautiful_pain_720p.pdfIn PDF document text
    • http://hotloveme.online/gonebizapabunpxgch.pdfIn PDF document text
    • http://zarozunaxa.iblogger.org/90220985391.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/patilawasu/96270431660.pdfIn PDF document text
    • http://visatoropot.epizy.com/what_is_the_meaning_of_howled_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/midomagi.pdfIn PDF document text
    • http://xiradev.rf.gd/zusikufukewiwupatuxewoju.pdfIn PDF document text
    • https://368051e9-4199-40ea-b9a2-dc6e6f83cb3b.filesusr.com/ugd/6260fe_1fcb766518864b5485b79b294a6419e1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/somamere/mobile_app_landing_page_template_free.pdfIn PDF document text
    • https://b9eb3541-094c-4606-b101-17c2291fd6e1.filesusr.com/ugd/a18601_5c3cced16f26441e80f963e65a653a20.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/firixabifofali.pdfIn PDF document text
    • http://nijarigu.onlinewebshop.net/15837398396.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/cashew_nut_processing_book.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_off0000eb62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB62 5236 bytes
SHA-256: e185b14abde4bddacf720e8620affd72bf76574514dfce0b00efea6eb52ecad4
font_01_sfnt_off0000fd42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD42 10624 bytes
SHA-256: 59e4d27251aa7cee2a1630df5222c539bd0ae9a546cf1bc17c3be35bb8e02bed

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