Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a5290173d272c73…

MALICIOUS

PDF

204.6 KB Created: 2021-04-01 23:09:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4212c423a013b83fe3c2356e1dafc573 SHA-1: 5ae88cf590de8131c19d00a2280f862bc85009f3 SHA-256: 7a5290173d272c7331a8f01cee13647d71f23c671b33b05aea69133ea310383b
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 0.9962

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://dugedepap.ru/wix?keyword=eid+ul+adha+2014+kenya PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387240/normal_5fe31c21ceba9.pdfIn PDF document text
    • http://naturebiolog.space/mafemadekozizukunulu9pf7x.pdfIn PDF document text
    • http://arboozfilm.com/sims_4_cheats_needscszmn.pdfIn PDF document text
    • http://trastenmyqort.online/multiplication_and_division_of_rational_algebraic_expressions_worksheetswmihd.pdfIn PDF document text
    • http://vipmanmarket.space/98299669169wxi4b.pdfIn PDF document text
    • http://immorta-cross1.club/social_change_and_development_perspective_in_social_work632sz.pdfIn PDF document text
    • http://keepsufi.space/what_was_life_like_in_the_1930s_uk17u1p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456687/normal_600e438c4f911.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403120/normal_5fe9e3a3e0838.pdfIn PDF document text
    • http://kfnwejfnkwheklf.space/dujiruluzikelepuwetexph6a5.pdfIn PDF document text
    • http://fofolep.mywebcommunity.org/how_to_unclog_a_hamilton_beach_flexbrew.pdfIn PDF document text
    • http://mainsale.pro/ingilizce_trke_hikayeler_kitapwdljp.pdfIn PDF document text
    • http://tasigezagu.scienceontheweb.net/xetivixasikide.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/datarofapakil/pokmon_sword__pokmon_shield_the_official_galar_region_strategy_guide_download.pdfIn PDF document text
    • http://vawerudarasikow.myartsonline.com/how_to_reset_plt_legend.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8166c5cc-d8ea-4e89-99c6-85dcc97e3d5f/excel_vba_instrrev.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/lumigopudonot.pdfIn PDF document text
    • http://kepawomokatuke.myartsonline.com/titugaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5043a14e-b05e-4be2-8f03-2e2ad20cf7e4/wofapukilexogujimejazujuw.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off00030414.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30414 19268 bytes
SHA-256: 52a08027d5ffb8951b892bde4f3fef860ce7f451e136754a817d8098693e8e83
font_00_sfnt_off0002c3d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3D5 5176 bytes
SHA-256: 39415c22c766c04e44bb9bc04655b92d8c19ef9162531e31458111cd6f6aebe0
font_01_sfnt_off0002d580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D580 15016 bytes
SHA-256: 34e76d0629896aaa963acfba33bc3a2d291c259006de55d914760405b48247eb