Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e2f05e137621a5…

MALICIOUS

PDF

76.4 KB Created: 2021-03-09 03:36:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 78a32733136d71d7df364167c331a619 SHA-1: 25f2a6ae1726a820de94c9130887a33416643c88 SHA-256: 26e2f05e137621a59ab5f3e2c46955ff2c03bcef31ec468d43c235a6cd40ec76
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'psychological theories of deviance pdf'. No scripts were extracted from this sample, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xajibur.ru/award?keyword=psychological+theories+of+deviance+pdf PDF link annotation
    • https://cdn.sqhk.co/melalisopapu/OPigdqz/world_challenge_sports_car_racing_championship_series.pdfIn PDF document text
    • http://cocobuka3.xyz/can_i_merge_files_using_foxit_readertbh2n.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/random_address_generator_us9ddqj.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/aid7o6A/95427847828.pdfIn PDF document text
    • http://uorott.com/acer_aspire_one_specs_windows_xp1z93s.pdfIn PDF document text
    • https://cdn.sqhk.co/vojofarakiva/j61ibez/20323351567.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/hfhagdS/95579942052.pdfIn PDF document text
    • https://cdn.sqhk.co/bitulore/eGhaRq5/como_se_dice_ranking_en_plural_arroz.pdfIn PDF document text
    • https://cdn.sqhk.co/wumigapinido/iicx29P/the_legacy_golf_course.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/dQbgigg/86839644870.pdfIn PDF document text
    • http://vbnmcxz.xyz/dollhouse_kits_for_sale_cheaprg6l8.pdfIn PDF document text
    • https://cdn.sqhk.co/bujiwamovul/qxFygeB/40278178506.pdfIn PDF document text
    • https://cdn.sqhk.co/towevefizub/dvvhjpY/fewuvesekewasazewedopiwej.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/Lnghygf/sujamisodo.pdfIn PDF document text
    • https://cdn.sqhk.co/zumedizojas/iijhijq/color_wheel_of_colors_that_go_together.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/f6406f1a-4f55-4502-afd1-27cd420e32ae/libro_volar_sobre_el_pantano_completo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97fe84a8-4804-4924-840a-123221caa8b9/41068294012.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/kamaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/salary_benchmarking_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a482071f-f647-4fc4-8a24-c4c80eaf50fe/nusomugosoge.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/eicr_report_edinburgh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b63458de-6cc7-4649-a291-17cba16886b6/sims_3_64_bit_catalina.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_off0000edb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB6 5580 bytes
SHA-256: 9dd2c890b0d6e0c98a1bb9ccdf0ad3f55de0eeb06d1feaa2a7bae1794fb01eaa
font_01_sfnt_off000100c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100C0 10472 bytes
SHA-256: c6f859441a4a3a93b105c8c46d75938194c8b800bd4ab8c9757135b15eb26050