Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b0e02155571af73…

MALICIOUS

PDF

70.3 KB Created: 2021-01-11 02:45:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 467de323b03a62e02303dfee9fb501a8 SHA-1: ecd39dc98ee52104b37ed0acbb303969b98dace1 SHA-256: 5b0e02155571af73e72cf0c0df3bdfe7fa564230beece0052867e51f78eb119b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?utm_term=climate+of+the+southern+colonies'. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the redirector suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=climate+of+the+southern+colonies In PDF document text
    • https://site-1171498.mozfiles.com/files/1171498/android_app_maker_for_windows.pdfIn PDF document text
    • https://site-1178979.mozfiles.com/files/1178979/tww2_empire_guide.pdfIn PDF document text
    • https://site-1173664.mozfiles.com/files/1173664/republique_dominicaine_meteo_aout.pdfIn PDF document text
    • https://site-1178112.mozfiles.com/files/1178112/doxefogiv.pdfIn PDF document text
    • https://dopijixofovaje.weebly.com/uploads/1/3/4/6/134692352/mobabusilem-mapur-bukoleribazan-tazulivepevolur.pdfIn PDF document text
    • https://site-1240247.mozfiles.com/files/1240247/13863426148.pdfIn PDF document text
    • https://site-1177587.mozfiles.com/files/1177587/archero_promo_codes_2020.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/vizegemawokaxe/99928514636.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/12320389770.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/thank_you_cards_funeral_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/read_children_s_books_online_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/15705439778.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/76944085659.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/baldur_s_gate_enhanced_edition_guide.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_off0000d685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD685 5024 bytes
SHA-256: f7519f74cb893f095234ddffea7ae75bcebfb11f4b8f9a8c069ca950bd5cb6fe
font_01_sfnt_off0000e76a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76A 10972 bytes
SHA-256: f688767de2e057e7951bda2908b6b7bc3bd3e56a5441e3a26005a953fc8d513f

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