Malicious PDF — malware analysis report

Static analysis result for SHA-256 e48181cb0c7bfc83…

MALICIOUS

PDF

71.9 KB Created: 2021-02-12 13:55:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7e418017b70ca89ae1d7a0086576b87b SHA-1: e9d293ec4269c9c25ad8d0729cf74f01830a1690 SHA-256: e48181cb0c7bfc838e0846069538b666ed6aabffeecbbe184b1a196bd25246bc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=mills+eagles+run+3+unblocked PDF link annotation
    • https://cdn.sqhk.co/tinipuded/gcschaW/25964107231.pdfIn PDF document text
    • https://cdn.sqhk.co/kixituvelil/sxieahh/senivunadedibuleme.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/qihhfnG/sugulekuvanuj.pdfIn PDF document text
    • https://gabejopow.weebly.com/uploads/1/3/4/5/134597712/repeset.pdfIn PDF document text
    • https://midatapeb.weebly.com/uploads/1/3/1/0/131070166/614ce28b38016.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/dgNjjhb/gipudagedi.pdfIn PDF document text
    • https://verumoxozuvije.weebly.com/uploads/1/3/1/4/131407377/4357833.pdfIn PDF document text
    • http://fabermanufacture.ru/java._net._socketexception_connection_reset_android_retrofitweqf2.pdfIn PDF document text
    • https://cdn.sqhk.co/rukugewul/geYPxid/vatitig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kewakuko/31812026657.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/75431740026.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/prima_della_roast_beef_nutritional_information.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cfd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD5 5284 bytes
SHA-256: 0d98f8c2eb565dfba1c257eeea667285deee41b915492fab9b690f054e2088f3
font_01_sfnt_off0000e1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C7 10208 bytes
SHA-256: 4fa035835351dceb65b6b75cc1278dbfaa2f4ef47a75d410e2041ed1d1f9874b
font_02_sfnt_off000104a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104A4 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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