Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6e7e5a80daa30e6…

MALICIOUS

PDF

76.5 KB Created: 2021-02-15 12:29:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 53b4f044ad44cefd7d42b0e3cc95cd0b SHA-1: 2d700d3c3007f5967a0bce1cd46620a29b47379d SHA-256: f6e7e5a80daa30e6b0ff23244dab5ff34a7750454cd24991d7a18052cf37ee63
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/strik?utm_term=ionic+breeze+quadra+reviews PDF link annotation
    • http://idslim-italia.site/game_launcher_tuner_for_boosting_performance_pro_apkvfsgp.pdfIn PDF document text
    • http://topvideo.design/uber_roadshow_presentationsfsng.pdfIn PDF document text
    • http://nukicew.xyz/war_chest_board_game_strategyj11wm.pdfIn PDF document text
    • http://pagebake.com/freshwater_angelfish_care_guideb0k6y.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/iibhchc/faxobelafaz.pdfIn PDF document text
    • http://matroskin.space/mivobeturasodirejk0j8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guxozuzemonixe.epizy.com/ice_cream_man_poem_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/vosukejiwiduled.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/94121763258.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/sponsorship_confirmation_form_template.pdfIn PDF document text
    • http://tirevotijo.epizy.com/30386723764.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/49663692622.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/form_wizard_bootstrap_3_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/best_romance_movies_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/call_of_duty_mobile_garena_game.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/cell_structure_and_function_matching_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/omr_answer_sheet_format.pdfIn PDF document text
    • http://rodukamofuf.epizy.com/tederarovumerel.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_off0000ec22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC22 5308 bytes
SHA-256: 5c6a30f3a06125d0ee8c3f2f0080b6fe6ceb70cbb39246ca38af4caa8ca51b33
font_01_sfnt_off0000fe4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4E 11560 bytes
SHA-256: 31d6ce59ed9ee1e9769769f0e33b2d1611bc83d88e05f074dcbd0fe9fa72f47a

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