Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2c5a53e412ba5c…

MALICIOUS

PDF

74.5 KB Created: 2021-02-14 03:00:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1dac2b62e936600944f9d13addec1361 SHA-1: 4d9d8ee1b7cfdedcba0baa0193b5639b0bae7cd3 SHA-256: dc2c5a53e412ba5c200d7c7179e8672c21a6f15ab1e5a5a7f77addcce398f497
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://leonvi.ru/123?utm_term=ipex+sewer+pipe+installation+guide PDF link annotation
    • http://card2card.live/back_to_the_future_hoverboard_skateboard_sticker191cw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410013/normal_600044d17be50.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/the_black_womans_guide_to_understanding_the_blackmanis68w.pdfIn PDF document text
    • http://hookup154.online/free_intro_template_after_effectjs6uz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376870/normal_5fe0da35e55e5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453721/normal_6008203398561.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/bUglSKU/80823486883.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/ideVifZ/libizeliwo.pdfIn PDF document text
    • http://papewakoj.22web.org/jejetuturejiwifedudobeva.pdfIn PDF document text
    • http://indonesia2health.online/7886152279622jtf.pdfIn PDF document text
    • https://cdn.sqhk.co/wobivada/FlhcjTM/family_events_this_weekend_los_angeles.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/dYfDgha/live_stream_nba_basketball.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479691/normal_5fc686ac01c9a.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/xeropizuwe/gmail_inbox_folder_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/meningoencephalitis_pada_anak.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/lab_report_plasmolysis_about_onion_cell.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/aurora_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/safety_data_sheet_for_zoflora.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_off0000e5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EB 5224 bytes
SHA-256: 30e79d31aa9e13a3af39446f7541017e62c2d1f214d280b8117049b2f08911b8
font_01_sfnt_off0000f7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D5 10896 bytes
SHA-256: 8eb50064736b6a9e5f05a222cd68eacece0acbcee0e74edf1eff53bdef0b727c