Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2b515625ce54584…

MALICIOUS

PDF

81.3 KB Created: 2021-04-08 00:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 30c88514d02dbba1c3539db8ce6023b2 SHA-1: 230c599e1e86a278ba0a3b8194b98c3abff0a367 SHA-256: a2b515625ce54584c2e4b55ed69828408eb485fe9a8ce6624a876d59deae6db0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that is flagged as suspicious and associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to downloading templates, which is a common tactic for phishing and malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xezojetit.ru/strik?utm_term=organizational+chart+template+powerpoint+free+download PDF link annotation
    • http://vegekezivujid.22web.org/video_er_for_instagram_apk_pro.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491671/normal_6005ed4005fb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449992/normal_5fe05d306cd1a.pdfIn PDF document text
    • http://pimipaxu.22web.org/50726377528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468255/normal_60130f1d58967.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490138/normal_60461f7b4ee84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414868/normal_602d98d834e18.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/tigewibejageju/vifonizunuxesoz.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/award_border_template_free.pdfIn PDF document text
    • http://vitupofelomar.epizy.com/86218193273.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/fiwiwelirumulugofibov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d824417-ef41-4ea3-a4b2-2ce5235cd473/tv_input_button_not_working_on_fios_remote.pdfIn PDF document text
    • http://ruxozuxikoba.rf.gd/despite_although_however_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6415dd78-4efb-4c7b-b450-6b39aa1000f4/unit_7_worksheet_1_mole_relationships_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/gatiwazibudixama.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/13436507271.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/green_bay_packers_roster_2018.pdfIn PDF document text
    • http://daxevetefixidaj.epizy.com/nespresso_barista_ricette.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/epdm_rubber_gasket_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/81981147153.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/d_d_5e_cleric_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/787f0c7c-2afa-4693-8bc3-ad28837a4533/what_order_do_i_watch_marvel_movies_on_disney_plus.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_off0000ec01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC01 5560 bytes
SHA-256: be4ec36755c0cc1fc9fbf9174735a55c5c03141c1bf3d87170f25beab520bbd8
font_01_sfnt_off0000fed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFED3 9000 bytes
SHA-256: d33d11f1ed5a13db730c96e22d98b9fca10d498f4f974fa8bef7b6b80606ed0e
font_02_sfnt_off000110f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110F0 11216 bytes
SHA-256: d116a56939357e61d5e08ff06d100c4157f263224bccaf87cf5c738179e2af62

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