Malicious PDF — malware analysis report

Static analysis result for SHA-256 6843adeaf9796b4b…

MALICIOUS

PDF

67.9 KB Created: 2021-02-08 22:03:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f24cbbd0ff65fafd39850e9db35b5954 SHA-1: f6dec764375f9a51a8715cb199f5090233cc1e30 SHA-256: 6843adeaf9796b4b7715acad5d61531854a0631b01ceb09987805c3d42fd1819
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://maypoin.ru/123?utm_term=ffxiv+where+the+heart+is+goblet PDF link annotation
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/8082927.pdfIn PDF document text
    • https://cdn.sqhk.co/jutirupot/bPFFjic/chess_rush_meta_2020.pdfIn PDF document text
    • http://secureappeal.com/cavitacion_en_tuberias_hidraulicasroze6.pdfIn PDF document text
    • https://kuwuvolabakeg.weebly.com/uploads/1/3/1/4/131407812/pepok.pdfIn PDF document text
    • http://good-production20.site/40837063607nuy6q.pdfIn PDF document text
    • https://kubasujile.weebly.com/uploads/1/3/0/7/130776158/5715778.pdfIn PDF document text
    • http://portkamesto.site/keith_laumer_bolo_download7gcjk.pdfIn PDF document text
    • http://itwomen.space/425584835744qrjk.pdfIn PDF document text
    • https://tufamivobanode.weebly.com/uploads/1/3/0/8/130814219/bedetu-kokavi.pdfIn PDF document text
    • https://gegoviboz.weebly.com/uploads/1/3/4/8/134876631/pipadiseritodeligije.pdfIn PDF document text
    • https://mupexopuwes.weebly.com/uploads/1/3/4/7/134722910/311e23389ee45.pdfIn PDF document text
    • https://gareketekefebon.weebly.com/uploads/1/3/4/6/134695024/barezu_xiratijose_xelubonos.pdfIn PDF document text
    • http://redtea.space/wogerurepogofawammif8.pdfIn PDF document text
    • https://bapoxaluw.weebly.com/uploads/1/3/4/7/134717037/4080889.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/wibadinavosunom/40645115431.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/fayetteville_north_carolina_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/casio_ae-_1200whd-_1avef_manuale.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/veronica_movie_trailer.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_off0000cd35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD35 5344 bytes
SHA-256: c198f7be7f4a00eef602343a1e906fa382e91064eeb55745e76d3202d0d7d5fa
font_01_sfnt_off0000df79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF79 10368 bytes
SHA-256: 7ab8abc39df11ff64663730e136b2ee2c8e7ad27e4d3ba6ed3be8260248aebd3

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