Malicious PDF — malware analysis report

Static analysis result for SHA-256 0578ba5e3ae30388…

MALICIOUS

PDF

75.0 KB Created: 2020-11-19 01:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 298497a465ab3eaf86f80cfb21d3a1fa SHA-1: 4cf215f01a996d2d225cfb2a777a5bdd1c728314 SHA-256: 0578ba5e3ae30388034b340bb6fd155420ec040a163137b4da876203a16375f8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs 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 an attempt to exploit users through deceptive content, possibly related to job opportunities.

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://trafffe.ru/123?utm_term=ocean+state+job+lots+woodsville+nh PDF link annotation
    • https://fujamimoxelak.weebly.com/uploads/1/3/4/6/134601663/poridapegowitipepebi.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/cb6bedbbf2c3.pdfIn PDF document text
    • https://vovaderinikuxu.weebly.com/uploads/1/3/4/5/134528816/rodugorigusaj_fiteverur_nimudiriwo_gomexefazagu.pdfIn PDF document text
    • https://rikurifijuse.weebly.com/uploads/1/3/4/6/134681474/rezovovob.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/mefovu/jifipulikozave.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/27867018081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/140969d5-fcc5-42d1-8cb1-1846288f441a/dimusekodew.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/mafosesujexupodemekazilop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc115d7c-17b6-450e-b5f3-4a5135fb3cdb/furagebevimomogapewegusad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d43bb1f-3baa-4cc4-a29f-9200d678007b/wobowanotu.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/free_budget_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/nccn_melanoma_guidelines_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f639c75e-57b1-480a-a548-0dfa7e19d0a8/xuzuxelisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0a337dc-dab4-43fc-b362-0569281d4636/bloque_norte_autocad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5578e5ef-9d3d-4228-9296-ba130fac1804/56161270012.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/taylormade_burner_09_driver_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c1d1beb-97dd-49d9-9d9d-80e592e07c69/card_wars_kingdom_apk_free_download.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_off0000e764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE764 5328 bytes
SHA-256: e0ef01060d0eaa16ed88523dbeb8b225b12269c6be36dc8fd7cc5cb90ac6cb51
font_01_sfnt_off0000f993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF993 11180 bytes
SHA-256: d43e88cc6fb572bb02c56f23438cf495d99c278e0596d6207ca74dc5b4c2ffff

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