Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dede7494db22360…

MALICIOUS

PDF

86.9 KB Created: 2021-03-31 23:34:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: b5fb6d734b16bafe027535ca39414de2 SHA-1: 6f27be1830cae4e6c709bed25a72b43336c4e163 SHA-256: 6dede7494db22360ec39f2d70164aaaa694f59068c82a1ce29c29b0c6f4920c8
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. No scripts were extracted, but the presence of the malicious URL and the overall detection strongly suggest a phishing or malware distribution attempt.

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://pelibifir.ru/award?keyword=urdu+islamic+calendar+2020+pdf PDF link annotation
    • http://gojavodevagajuw.mygamesonline.org/how_to_drain_ruud_hot_water_heater.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CDWhbqq/bamogapewinifusofenarilog.pdfIn PDF document text
    • https://cdn.sqhk.co/gobajejuz/Yhgjjwj/regal_cinema_movies_opening_hours.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/e36b6354-1da2-41b4-9b32-299923bd4896/bijojivisopovora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f093a20-5720-4249-9c81-5e1a00318fb5/jasidupulu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e984ac2-d54c-49cb-91c7-1cdc26ac0763/gopenabugafifitubakafovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2e6995f-7e8e-4a83-959e-efd24652b318/barnett_vortex_lite_youth_compound_bow_package.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/android_games_free_apk_action.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be80a8f9-ca38-4def-90a7-f0b1d24e02e1/mozemofulerosurafemipoji.pdfIn PDF document text
    • http://mifofoxidil.onlinewebshop.net/myself_essay_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ecc3f51-f271-4997-9fcd-c1f6507dd762/34742565097.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/epson_wf-3540_ink_cartridge_not_recognized.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c7ec035-3a6c-4108-9f23-79772116cd82/querflte_yamaha_677_h.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/503c533f-792b-4553-aef0-e94a59affeda/livro_para_gostar_de_ler_volume_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3904165-dfc8-41e9-a7e2-89118c3adfa2/volume_eyelash_extension_course_melbourne.pdfIn PDF document text
    • http://vekisofekibote.myartsonline.com/amplificador_fender_princeton_chorus_2x10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/981f01ab-3114-4266-bdc1-46720dc8a5b0/xilow.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/darizetewisijezigo.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_off0001149f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1149F 5564 bytes
SHA-256: fcc221aaae6dc08a8da4c43253fb0c9de4a4aea41464176f2abf2f4f63de64f6
font_01_sfnt_off0001277a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1277A 11752 bytes
SHA-256: ba2a44670c825a64895a7f9b8e24a8806e7002e64d5f8812e34e1cfc0276c424

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