Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a4afa10419341df…

MALICIOUS

PDF

218.7 KB Created: 2021-04-03 19:24:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: ef8a380f53697fcf8ee8e1d47fa51bd9 SHA-1: b1a1cb84e81d70ea2a1e9dbba83439e9aa4e14e8 SHA-256: 5a4afa10419341df570fda317db03017032f68ec475d05a73e35ab938b57b676
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL, 'https://vilenefex.ru/wix?keyword=r3+zoning+jackson+nj', which is likely used for phishing or to download a secondary payload. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into taking action, aligning with a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wix?keyword=r3+zoning+jackson+nj PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447431/normal_6063ef6094d99.pdfIn PDF document text
    • http://evatopshop.xyz/wimibinevavakjvy2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410002/normal_602876d73cbff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481509/normal_5fd8ddae9ffe5.pdfIn PDF document text
    • http://sell-toclick.online/what_does_the_pin_symbol_mean_on_snapchatb5fsl.pdfIn PDF document text
    • http://future-techno.ru/takafinomivejitefuy8gwm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501233/normal_600db2ba0ccec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422368/normal_6067d74b7c40d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454665/normal_5fee12c10129e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_601122ee4128b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421048/normal_5fc70f25219a8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lumosaneja.onlinewebshop.net/the_darkest_minds_cast_mandy_moore.pdfIn PDF document text
    • https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_6bd83973fa4840b18c8adadbdff5674b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/niveles_de_prevencin_de_leavell_y_clark_mapa_conceptual.pdfIn PDF document text
    • https://ee42ee57-4547-4a8c-8a66-6cccb7f6869d.filesusr.com/ugd/2a9ad2_a8fbf1603b0d47cc99ee836ca83a9048.pdf?index=trueIn PDF document text
    • https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_9617d463d55e4a1f8566613d5b75a137.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/bexodawor.pdfIn PDF document text
    • http://letutemoxeluz.onlinewebshop.net/lean_six_sigma_white_belt_exam_questions_and_answers.pdfIn PDF document text
    • https://08202b68-adf4-4b7d-bb06-fcebe54c78b8.filesusr.com/ugd/76dd3d_254e06f5bcda45cc952ab36d3bfaa4e1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bejideba/33166461078.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31016 5200 bytes
SHA-256: 0dc31bf6f86c0c0b661f2ff693b5b97a2882b6730ab5f86af7aeec428f360b6a
font_01_sfnt_off000321f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321F8 10792 bytes
SHA-256: 9bc80074ddc4b4302f3e3a3b2ada700901c3b284d34165052f0b950bf681bafd
font_02_sfnt_off000346de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x346DE 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

Open this report in the interactive analyzer, or submit your own file for analysis.