Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0dc93ad60fc55d…

MALICIOUS

PDF

79.1 KB Created: 2021-02-28 21:53:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 879ae73cdcb9464f7fd8b40068ffa044 SHA-1: 7fbead727d2ff05fe9d395c345b2897c831b1969 SHA-256: 7a0dc93ad60fc55df13f822def0f7275c4a4a2e95f07bcb0b0b2608b4f64ec6f
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that, when clicked, leads to a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload or phish credentials. The PDF structure and embedded URI heuristic confirm the presence of a malicious link.

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://lozipotod.ru/strik?utm_term=the+office+season+4+episode+10+script PDF link annotation
    • https://cdn.sqhk.co/guzoladip/digffgf/mx_player_video_hd_apps.pdfIn PDF document text
    • https://cdn.sqhk.co/dopebuxoz/idgjZJ7/motorola_razr_2020_price_malaysia.pdfIn PDF document text
    • http://leqqurint.online/66798199438s7ked.pdfIn PDF document text
    • http://kaguveka.22web.org/lofifabekiziremebegaxim.pdfIn PDF document text
    • http://goodxday.xyz/informasi_obat_herbesser_cd_100czhw5.pdfIn PDF document text
    • https://cdn.sqhk.co/feluxolid/cxlPede/2926226382.pdfIn PDF document text
    • http://malafasa.iblogger.org/ganesha_cartoon_song_video.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wuxodevidupibe.epizy.com/miluvimulijapisafipalekux.pdfIn PDF document text
    • http://xuxamasisovuku.epizy.com/logitech_wireless_touch_keyboard_k400_plus_with_built-in_touchpad.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/96402995771.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/90577561264.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/purdue_owl_works_cited_apa_format.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/lenixewirorilumoze.pdfIn PDF document text
    • http://kirogebi.epizy.com/acorns_stock_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/2630744553.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/94154764872.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/bundoran_surf_co_surf_report.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6A 5228 bytes
SHA-256: 26f099e39a67eacf8ffdbef1bc8870aa789012fc10c3eb08603aed9b56f7deb0
font_01_sfnt_off0000fc2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2A 10724 bytes
SHA-256: e75777a8254d56e21b000b5cef9fceb1fb2514fb868ae05afaa8518b97a87f56
font_02_sfnt_off000120f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120F6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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