Malicious PDF — malware analysis report

Static analysis result for SHA-256 73f76eba19d48785…

MALICIOUS

PDF

72.0 KB Created: 2021-02-17 04:37:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6d4edfed918e86b8d818ee4a06f20717 SHA-1: bf3d2123673091a21d02a6073e44fbb287e77ad8 SHA-256: 73f76eba19d4878586a6211ceab6cfa9f7c7824057d1486ea56a1bed528b1d7d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=ghost+recon+breakpoint+how+to+claim+pre+order+bonus PDF link annotation
    • https://durunefa.weebly.com/uploads/1/3/4/7/134712847/wilokizanugab.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/nhaidEF/62090294446.pdfIn PDF document text
    • https://cdn.sqhk.co/jekefebiba/TPEC6Pa/sim_free_mobile_phones_amazon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453337/normal_5fe2a821c9952.pdfIn PDF document text
    • http://usblighter24.site/dfinition_de_la_comptabilit_analytiquem2ae4.pdfIn PDF document text
    • https://cdn.sqhk.co/zarejesorufo/cAcjcji/youtube_vr_oculus_quest_not_working.pdfIn PDF document text
    • http://covid-19online.site/797765684736sx9p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472198/normal_5fe253b2d0a33.pdfIn PDF document text
    • http://believes.space/pevazikavi8tkcw.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/KpjeKie/65762532220.pdfIn PDF document text
    • http://sollabs.xyz/informal_letter_writing_format_cbse_class_8dfzuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367273/normal_5ffc8db5e435d.pdfIn PDF document text
    • http://dommasters.site/517724154198ay9i.pdfIn PDF document text
    • http://organic100.fun/mary_kay_compensation_planyuh1v.pdfIn PDF document text
    • https://ponixojezunuto.weebly.com/uploads/1/3/0/9/130969897/bujovufegazigutuvup.pdfIn PDF document text
    • http://sallehub.xyz/42305914031o562b.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/faluzotixupi/sample_inspection_form_template.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/bookworm_adventure_apk_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/kivi_orana_badaga_audio_song.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_off0000dad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD8 5640 bytes
SHA-256: 91fa1f1c0073a6e4ca026ed665250220989d06d3cc6dc862b4f5df629e22596a
font_01_sfnt_off0000edeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDEB 10588 bytes
SHA-256: 03aa3427d1ade332b1dcb2c52a8ff356f746c7a345b119e911b62969a9c5caaa

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