Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a30a5124e20842e…

MALICIOUS

PDF

81.9 KB Created: 2021-03-17 15:52:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8c2a8cf5bd63d1bcd5085e24cff450c0 SHA-1: 2ff5ab12116b03ec47386ccecafde29f1695b430 SHA-256: 7a30a5124e20842e88ef6115f8ae8f2dee7be2c0a35f96c4bb6a0f320f8d9592
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 0.9998

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://jacksth.ru/strik?utm_term=design+patterns+in+java+resume PDF link annotation
    • http://mangalvpodarok.ru/71064694722bi5ww.pdfIn PDF document text
    • http://zespodsvetkoy.site/38040191321f3jlh.pdfIn PDF document text
    • https://cdn.sqhk.co/nizolurinidi/3Ejhqjb/85813077447.pdfIn PDF document text
    • http://topdouche.xyz/avengers_3_trailer_free_sabwap._com8aia4.pdfIn PDF document text
    • http://peuer.xyz/zutiripetikejaetigc.pdfIn PDF document text
    • https://cdn.sqhk.co/dufadafakuti/hajijjO/fureludogezepofij.pdfIn PDF document text
    • http://workshop-fb.ru/asco_redhat_solenoid_valve_manualz5gag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://putazosaw.epizy.com/synonyms_and_antonyms_worksheets_grade_5.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/68702339525.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/38506881366.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/nafunotepa.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/academy_of_management_perspectives_author_guidelines.pdfIn PDF document text
    • http://vovakupalujum.onlinewebshop.net/mirumoxiri.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/47968605875.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/68529428308.pdfIn PDF document text
    • http://dozuxix.myartsonline.com/peavey_bandit_112_red_stripe_speaker.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/accole_forms_pronunciation.pdfIn PDF document text
    • http://podepabat.rf.gd/90478534037.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_off000103d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D8 5244 bytes
SHA-256: e305b60f8a095b0b7f89d4e8d9ef888ab2b91c1390cd120aa79420257ba8a024
font_01_sfnt_off000115ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115AE 10856 bytes
SHA-256: 06bfb04588d77e871a0478418a0a9e70308a675b7a93fa316e9a95173a496137

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