Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7026b8471262b9a…

MALICIOUS

PDF

88.8 KB Created: 2021-03-09 02:56:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5ce6c1e17722c281059a58d469074927 SHA-1: d2e19b3d217fd6ac3d8cce9177723c65582bbe3f SHA-256: b7026b8471262b9a5c61b8f5adce31de179fbda315fee25162341d8b7457d7fe
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, likely to trick users into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF_URI heuristic confirms the presence of an external link. No scripts were extracted, but the overall structure and URL suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=how+many+electrons+can+fill+an+orbital PDF link annotation
    • http://warewakeb.sportsontheweb.net/asme_standards_for_drawings.pdfIn PDF document text
    • http://fafikup.scienceontheweb.net/zagisisolonuxanewamefu.pdfIn PDF document text
    • http://movizopolu.medianewsonline.com/lonokaropuruvaguj.pdfIn PDF document text
    • http://midikakuvekume.mywebcommunity.org/what_voltage_is_a_good_1.5v_battery.pdfIn PDF document text
    • http://farozemirig.scienceontheweb.net/james_and_the_giant_peach_online_book_free.pdfIn PDF document text
    • http://mitimewigupito.mypressonline.com/18261484603.pdfIn PDF document text
    • http://kewatupu.scienceontheweb.net/historia_do_calvinismo.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/xukewisulapufe.pdfIn PDF document text
    • https://foxujutuz.weebly.com/uploads/1/3/4/3/134348357/zofonagibifana_wifur_muvawufe_tofatapuj.pdfIn PDF document text
    • http://zovofuti.mygamesonline.org/what_is_color_blindness_in_psychology.pdfIn PDF document text
    • https://mevamakokuvafas.weebly.com/uploads/1/3/4/0/134040887/lenopi.pdfIn PDF document text
    • http://xorimomupajo.scienceontheweb.net/63089228331.pdfIn PDF document text
    • https://lepoboniw.weebly.com/uploads/1/3/0/9/130969744/7332729.pdfIn PDF document text
    • http://tadurarawi.mypressonline.com/king_arthur_and_the_knights_of_the_round_table_audiobook.pdfIn PDF document text
    • http://jopagozopive.medianewsonline.com/how_to_reset_a_samsung_vrt_steam_washer.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/jakujakula/musuzo.pdfIn PDF document text
    • http://tivakifuzir.atwebpages.com/vemimuketewoxojolaketuda.pdfIn PDF document text
    • http://mubodadekutaxim.atwebpages.com/55875278146.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/area_circumference_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/15613572651.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/farewell_email_template_to_clients.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/36108349594.pdfIn PDF document text
    • http://bugenerefajujus.atwebpages.com/smart_watch_bands_ebay.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A85 5324 bytes
SHA-256: a613177c9d8eb628bfc1c5624784c5090010612875c143b3ea43170ebcc6e251
font_01_sfnt_off00012c9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C9C 11592 bytes
SHA-256: 6f5870282cb65422306e60f40b0573abae2697d28f69fae77c5b1551fe06e22b

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