Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1b59fe90dead414…

MALICIOUS

PDF

67.8 KB Created: 2020-11-18 22:07:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: c541066da6d4268fdbd5cf774064c0a5 SHA-1: d6464b44aebd53e98b8c191d96d2bde272317472 SHA-256: a1b59fe90dead4145be71a8c8cdf0ea51ac63b9fc94b51dbd17140d94bc37c48
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://traffking.ru/strik?utm_term=avatar+2+o+filme++dublado PDF link annotation
    • https://kupajozowujuz.weebly.com/uploads/1/3/4/8/134881722/patozulo-taluxedow.pdfIn PDF document text
    • https://luzofimufabo.weebly.com/uploads/1/3/4/5/134590143/zumonaxivimamelenov.pdfIn PDF document text
    • https://jepirozo.weebly.com/uploads/1/3/4/4/134474462/36b0ce9ca4f9c9.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/bupexusarusal.pdfIn PDF document text
    • https://lapenemelibi.weebly.com/uploads/1/3/4/7/134708636/0a6a694e9040d.pdfIn PDF document text
    • https://panirosarukiza.weebly.com/uploads/1/3/4/1/134132539/subenakox.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/4e0d994f.pdfIn PDF document text
    • https://xovelojedawoka.weebly.com/uploads/1/3/4/6/134662979/dafaxutisuwarexon.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/miwolezedubujoz/2611176904.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/1702721748.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/normal_vector_of_a_plane_python.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/algebra_1_inequalities_word_problems_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/jenuzobamoronotadosagifij.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/deed_owner_of_property.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/76813886728.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_off0000c5d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D9 5196 bytes
SHA-256: b3b4912e78753c4b9d5799f474feb8d6711bbe9f63c302ca760190cad17d38cf
font_01_sfnt_off0000d77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77B 13580 bytes
SHA-256: c450274ca3a2c399cfa6ba5d68a3c45ffb9ec53ba51169cfd660a842da1bf929