Malicious PDF — malware analysis report

Static analysis result for SHA-256 e26a69884e48016c…

MALICIOUS

PDF

74.3 KB Created: 2021-02-25 12:03:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fc7cbe048b965d6b07cf1498358b251b SHA-1: 03fe890ec8e8d6d63d7138484f663382ce5b09a3 SHA-256: e26a69884e48016c5c4aebf87e47287e7ba86dc01e0ced6449a399f47d311912
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/wb?keyword=taco%20bell%20restaurant%20las%20vegas PDF link annotation
    • http://static-get.top/755622027244dynl.pdfIn PDF document text
    • http://smartycredit.info/716364452727pr3x.pdfIn PDF document text
    • http://junemam.22web.org/zalodukakejejo.pdfIn PDF document text
    • http://makamar.xyz/18146187626df0gj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kojaburu.epizy.com/rekubur.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/89901245633.pdfIn PDF document text
    • http://sivopumifivak.epizy.com/self_defense_pressure_points_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/pebenajizukasukuku.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/32258554962.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/does_voice_chat_work_cross_platform_fortnite.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/english_test_for_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/17329308095.pdfIn PDF document text
    • http://rebobimakefeli.epizy.com/62240563819.pdfIn PDF document text
    • http://xomexopiguv.rf.gd/323504092.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/22230551708.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_off0000e6c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C5 5116 bytes
SHA-256: ba7345c03570ba19ccb10b70aae031542aadec8dd19462bcb0308f6c65f205d7
font_01_sfnt_off0000f843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF843 10700 bytes
SHA-256: a50ec898d6cbe71adc303b46bf119615bc7980a224d969b594f386898b108e02