Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b378c7501162d81…

MALICIOUS

PDF

80.8 KB Created: 2021-04-01 14:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 818ba7557a414101c10dc2a3c9915131 SHA-1: 92f2af5e1335dbdfb4e3690c5ecabc1577f0f7b0 SHA-256: 6b378c7501162d814e5cb98f0e0359f9596ec3a77ffee25184d7f7b9e1e30eb4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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-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://maypoin.ru/wix?keyword=stickman+games+unblocked PDF link annotation
    • https://jopokiwajisi.weebly.com/uploads/1/3/4/1/134108554/8333670.pdfIn PDF document text
    • https://masenajeronuzes.weebly.com/uploads/1/3/1/6/131637464/ba7c8fa65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368497/normal_600dcee7b15f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367674/normal_600440fa88c7d.pdfIn PDF document text
    • http://reduslim-ordina.site/how_does_coso_define_risk_how_does_iso_define_riskon8sa.pdfIn PDF document text
    • http://nazhivy.net/givebeterenizidatab37gmd.pdfIn PDF document text
    • http://a-trvl.ru/xiropavobagevitawp3s00.pdfIn PDF document text
    • https://wafanipo.weebly.com/uploads/1/3/2/6/132695839/cd3e6.pdfIn PDF document text
    • https://zinalojirade.weebly.com/uploads/1/3/4/2/134266028/2876250.pdfIn PDF document text
    • http://qwonder.space/bose_321_series_2_price6fqr1.pdfIn PDF document text
    • http://reznitskygallery.com/how_to_use_the_garrett_ace_300_metal_detectorltdos.pdfIn PDF document text
    • http://geleostone.online/comment_reparer_une_batterie_de_velo_electriquerpv5a.pdfIn PDF document text
    • http://lutazukaroxi.22web.org/40446070262.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/birefa.pdfIn PDF document text
    • https://www.yupi.io92In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/2669159155.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/pronoms_relatifs_exercices_niveau_avanc.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/computer_networks_and_internets.pdfIn PDF document text
    • http://bizosubage.rf.gd/ashdown_forest_walks.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/kovebaxigexeluta.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF12 5352 bytes
SHA-256: f3c8f42aa56f88790551aa884c5f983838a9626f54bc50873fa9bde0b130be6b
font_01_sfnt_off0001011e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1011E 11544 bytes
SHA-256: ec4f0b97ad4c941f451de49daa9e076ee43c1b28eb1515cec21ff88e016aba41
font_02_sfnt_off000127ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127EC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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