Malicious PDF — malware analysis report

Static analysis result for SHA-256 a62d145ce0012800…

MALICIOUS

PDF

76.0 KB Created: 2021-05-12 18:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 11b9bcde5a380a836ded87f5e084a5d1 SHA-1: 280880ed82d6ab083f73e1d01585cdaa0ded8f2d SHA-256: a62d145ce001280048183dde13886c30cdceeea193cfbd489c8611dafdb9fe30
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to whitewashing furniture, directing the user to a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/strik?utm_term=how+to+whitewash+furniture+using+chalk+paint PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4466661/normal_60298cafb2b30.pdfIn PDF document text
    • https://cdn.sqhk.co/lajefage/Jo4idPz/gladiator_3d_print_file.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/carding_amazon_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/g9haicb/tulalog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420036/normal_5fd7cb4eba3f3.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/aje8ahd/104793241.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450727/normal_600be39f93c85.pdfIn PDF document text
    • http://pugezesiw.mygamesonline.org/jimatore.pdfIn PDF document text
    • https://cdn.sqhk.co/gajamomol/iShhibN/14246948379.pdfIn PDF document text
    • http://fukiwurezopukof.mywebcommunity.org/bsc_chemistry_syllabus_download.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/dagasopones/2nd_grade_math_worksheets_addition_subtraction_regrouping.pdfIn PDF document text
    • http://muluwokixo.onlinewebshop.net/alimentacion_consciente_suzanne_powell_descargar_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bf6bf7f-abe6-4e15-9a12-6c1ef64d78b4/lagovugurona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b6118ca-4c47-4479-aaea-2a10a1d9f4b7/59288308365.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/56565717958.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/my_family_and_other_animals_1987_dvd.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/88831490094.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/zitorex.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/create_html_email_signature_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/how_many_batteries_are_in_apc_smart_ups_3000.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/28666538090.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_off0000eb94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB94 5392 bytes
SHA-256: 4371489c06f4f512b012edfd1b924da2b57dc260405c4b48957746479ae12d53
font_01_sfnt_off0000fe03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE03 10748 bytes
SHA-256: 73d2d4b3bf15aeab57724fb04ed45e536f325b765ca3a1076e5c2c5bee9d47cd

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