Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e9bdc57de05916d…

MALICIOUS

PDF

75.6 KB Created: 2021-03-01 17:11:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d6d07862d4a2570e9f3d51fb7f79b364 SHA-1: e2d3fb72a7965b81cc159577a74245b665f6acee SHA-256: 9e9bdc57de05916d53afc9b74b2499950466517c52ff466c5b62c6a1e91c4e5c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://gimoguvi.ru/123?utm_term=interview+questions+during+covid PDF link annotation
    • http://rakadan.sportsontheweb.net/94066737764.pdfIn PDF document text
    • http://maximizator.space/66836157510gvbcw.pdfIn PDF document text
    • https://cdn.sqhk.co/tuminageka/njjbghf/topup_digi_slot.pdfIn PDF document text
    • http://fosavaxenu.mypressonline.com/dorian_gray_painting_quotes.pdfIn PDF document text
    • http://liwexun.mywebcommunity.org/65528767709.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411917/normal_5fd275373fa8c.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/merchant_of_venice_bassanio_character_sketch.pdfIn PDF document text
    • http://zuxekagapefe.mygamesonline.org/canon_canonet_ql17_giii_film_camera.pdfIn PDF document text
    • http://numulul.mygamesonline.org/what_are_some_important_and_effective_listening_skills.pdfIn PDF document text
    • http://bubble1.space/wikipedia_formosan_termites3in8z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502336/normal_6023dfe321522.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404313/normal_5fcf755dd8260.pdfIn PDF document text
    • http://teleporttur.ru/36626292871gbq8e.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/viregujipowuru/banjara_female_whatsapp_status_video.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/how_to_use_chefs_choice_knife_sharpener_100.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_off0000eba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA6 5080 bytes
SHA-256: c3eb7df60f4fc3e825f1dcb0404c79e9752939f062dc95f78bbab0391c82a3e3
font_01_sfnt_off0000fd0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0F 10656 bytes
SHA-256: 239ffce5e262895d07e6097bbc3afbec03b3218a738ec596ad6620663757616d