Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb925abd016f90d…

MALICIOUS

PDF

95.8 KB Created: 2021-04-02 14:56:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: fd63afc5e04cdcc253953032946b4203 SHA-1: 916f7bc55946c2c1cc598c5228ee7e5dddb4b1f2 SHA-256: beb925abd016f90d2bd047d59025d8a868e9f7e8eb01e402996eb37105204d12
134 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains embedded URLs, one of which is a link farm on disposable hosting, suggesting it is used for phishing or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to Canadian citizenship applications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/award?keyword=canadian+citizenship+application+form+for+adults+pdf PDF link annotation
    • https://zolerowiz.weebly.com/uploads/1/3/4/6/134691656/nupunixage-xajaxovoxufep.pdfIn PDF document text
    • https://cdn.sqhk.co/nujekezitifi/2hjwQig/kamaguvedajexoxawalituv.pdfIn PDF document text
    • https://cdn.sqhk.co/lejesapazud/b7YDigs/poutine_pronunciation_canadian.pdfIn PDF document text
    • http://rowomonug.mywebcommunity.org/what_pros_use_project_x_lz_shafts.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/ibihVRk/pojura.pdfIn PDF document text
    • https://cdn.sqhk.co/vorowobenune/gfLjdge/best_athletic_apparel_brands.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/ZqpA9hb/14520260897.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/ieggfBK/game_boy_free_download_apk.pdfIn PDF document text
    • https://nobaloledajasom.weebly.com/uploads/1/3/2/6/132681012/bebusegibelowojo.pdfIn PDF document text
    • https://podogavefa.weebly.com/uploads/1/3/1/4/131438056/nukexosiz.pdfIn PDF document text
    • http://pazifelurup.medianewsonline.com/where_should_flammable_materials_be_stored_brainly.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bdade64-1ae5-44d7-8e62-4c09cf7e7dc0/84920908992.pdfIn PDF document text
    • https://5d94d51b-2702-4b64-8df3-eadd022f3edc.filesusr.com/ugd/2ddd39_c612a2a201e04ee6b72bac40714572ef.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/373bb52e-9289-4848-a500-70ccd5ca57cc/4777279559.pdfIn PDF document text
    • http://jumawivowibeb.onlinewebshop.net/calendario_setembro_2020_para_imprimir.pdfIn PDF document text
    • http://sivikonalijuto.myartsonline.com/bsa_firemn_chit_requirements.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f97246c6-f6db-4042-ba8a-856727f88332/xiwujavujuverarowu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e87688d-4398-4b65-9099-efd7558c8bd5/gukosadebozitovege.pdfIn PDF document text
    • https://96a604d4-6f4e-42dc-90fb-b802e1cf4ed0.filesusr.com/ugd/6ef60c_b083e92a21224332a6ddc63a5992964a.pdf?index=trueIn PDF document text
    • https://61090d85-22e6-4724-b969-52a17785150c.filesusr.com/ugd/952c2e_0209e3f7b5fa4f10b04efc680f02b050.pdf?index=trueIn PDF document text
    • http://bejanifezilo.atwebpages.com/19731833495.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45d8eddd-c992-4ee3-94a2-159234b2caec/harry_potter_book_1_original_cover.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_off000138cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138CC 5352 bytes
SHA-256: 2ad350a7e06a60c3184dc2f6eb7e1cee4cc7bd75b77188c68521587ac6cc6447
font_01_sfnt_off00014ad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AD9 11400 bytes
SHA-256: 89e4353ed8d0bb63ac01ed576be35a1309d9a0c9464c912a462da2882d904ba6