Malicious PDF — malware analysis report

Static analysis result for SHA-256 a07b8d1571e30322…

MALICIOUS

PDF

85.5 KB Created: 2021-03-22 06:06:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: ad4f69c2eb74675f79df1b03e748c3dd SHA-1: 27c05f1a6ba72f793e0c1beac71bf0d5aca5c368 SHA-256: a07b8d1571e30322c96c155772a2c47f61c86cd465108b5697757dd4f2c7e0b5
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit users by directing them to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=how+to+change+the+reading+voice+on+the+bible+app PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369933/normal_60224b93e19c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427077/normal_605118361080e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374537/normal_5fff580aef5cb.pdfIn PDF document text
    • http://stroymarketmetal.ru/theory_test_uk_driving_booktcw8p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379974/normal_603778d8cecb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446036/normal_600931a441e82.pdfIn PDF document text
    • http://detonicufficiale.website/nigafesidifebajifuroq8heh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421969/normal_600574dd1668c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/b6e0af6e-1ec5-4e3b-a540-7f434dd956f1/85542254309.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/zupadibuvajawij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16c06df0-1432-48fe-a79b-5495098d4ed2/50777314470.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9fdb7f5-c527-408f-8e01-c88ec69cc009/3331872932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a33ae234-df53-4b39-894e-118c9fd2838b/384957361.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/nda_2_2018_set_b_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d10133f0-321d-4929-9dad-e1f8d6d9a452/us_fda_food_safety_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0368787-6de2-440c-b14e-bf06d4504f73/the_magic_school_bus_books_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/323c2d4c-a91b-4801-91a7-2bec9d42ee3e/vampire_dark_ages_v20_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f3bf6a4-db9c-412f-9a59-96a4d6c51da0/me_before_you_full_movie_espaol_latino.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/87854491649.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe52b4e-fbed-4412-b20a-f1c748750723/how_much_is_the_first_batman_comic_book_worth.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF53 5196 bytes
SHA-256: c5a5ea7995f8d307471824d92d8d4691a69124d070d86ee9f19fd31d3b253eef
font_01_sfnt_off000110fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110FB 12076 bytes
SHA-256: cfffbd69ddc70b84e85468259a3ace26f6eafe09167242458029b34c475c5799
font_02_sfnt_off000139e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139E0 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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