Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e2f20cb817b4b93…

MALICIOUS

PDF

79.0 KB Created: 2021-03-01 11:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a91861d11317ebe4d03eedcd3d2f7269 SHA-1: f0d60393e7db28078199190e9b5b6a499b9925fd SHA-256: 7e2f20cb817b4b932e273fd69edd91c7c37e21f56264983b13ab1808a7326222
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/123?utm_term=can+i+use+a+black+sheet+for+projector+screen PDF link annotation
    • http://vurovolapoza.mygamesonline.org/ninisusiduzaxerusawubem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370541/normal_602ea8ac395dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491432/normal_5ff3e7ffb0cc6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472768/normal_5fcb4c395793a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403560/normal_5feef33ae0319.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402949/normal_601d24bd0a38a.pdfIn PDF document text
    • http://boomua.site/60015479610j77mx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461250/normal_5fc7267f41637.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390056/normal_602ed6fd61ee7.pdfIn PDF document text
    • http://unreguezff.rest/romeo_y_julieta_espaol_latino_pelicula_completam2sbv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402948/normal_5fe1beb7316a7.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/how_did_thomas_merton_die.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407747/normal_60055576a15ee.pdfIn PDF document text
    • http://raftgjgr.space/examen_ceneval_egel_administracion_contestadowuvbw.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/fgiahaJ/ranker_best_anime_movies.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF833 5288 bytes
SHA-256: e4e984f2a0ca28b6ddb07ddbf2f904d8e1334296062eb3b96d2f9b75201fc037
font_01_sfnt_off00010a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A2B 10880 bytes
SHA-256: 5b762c8c407cf3d27cc5be19397d5117697242f9d213f20ff4d70273891004ba