Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aaa52274abc775d…

MALICIOUS

PDF

68.5 KB Created: 2021-03-18 06:57:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: a4e45c8a92cf7421794dc2fd9384df23 SHA-1: a0f9901619c2592dd81710ed97514d5407030eae SHA-256: 4aaa52274abc775d439f5bdd746bad6c077db4bf0ee5dd13ace3033904c47586
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An external URI pointing to 'botokaw.ru' was extracted, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the overall detection profile strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/123?utm_term=celtic+hand+font+free PDF link annotation
    • http://lazirawolewok.getenjoyment.net/wepom.pdfIn PDF document text
    • http://bimoriz.getenjoyment.net/34663531588.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368982/normal_5fc5ad27424fb.pdfIn PDF document text
    • http://javaxirivibewi.mygamesonline.org/cribbage_scoring_chart.pdfIn PDF document text
    • http://bagesopabiwub.scienceontheweb.net/19060002997.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464303/normal_5ff363a439bfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_600f5c0cd8d57.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/nalege.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/piradi/filofagen.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/78704722588.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2c91e1-e8a5-4704-b210-1944a615f7ed/accu_chek_aviva_plus_meter_discontinued.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/xebatila.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9121b0af-9800-4dad-ba8a-42c1cd32a7b9/54047972768.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/who_is_the_deputy_prime_minister_of_canada_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/93546143629.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/how_do_i_add_amazon_prime_to_my_dish_hopper.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/besixexebilipexonibarok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a8b76fd-7af7-44c8-942d-db8850f3d8ef/used_weber_performer_charcoal_grill_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/dalaran_heist_guide_hearthstone.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/muzomutubefewuvapakabejor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1bce051-1f3b-4f36-b0fa-f1159282aada/resumen_de_cien_aos_de_soledad_de_gabriel_garcia_marquez_por_capitulos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1247f73-71e1-4466-8784-51136b271c1b/tebonibipapetu.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/tivoxejujeduwakod.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_off0000d028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD028 4836 bytes
SHA-256: f017c00aa2ec717ea64fb80a4e2b448f6c8c8b5290c17503c1afa38c384a0e25
font_01_sfnt_off0000e08e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08E 10708 bytes
SHA-256: c02f4fe18592e979f1022a9b5852b8aadfadf1ddd85f2c7039cecb483f283907

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