Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a7e11c57e39e76…

MALICIOUS

PDF

66.6 KB Created: 2021-02-27 07:44:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b314ef266b2e0dddd11b0066d4600130 SHA-1: 3d0c7e682510e475ece4e77093082d2ef2d8c1c4 SHA-256: c9a7e11c57e39e76a483f02dc31fdf336df96fb1d251367e960d2174cd5d6cbe
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://jottigo.ru/wix?keyword=seamless+bible+study+pdf PDF link annotation
    • http://lamakexo.scienceontheweb.net/20089507583.pdfIn PDF document text
    • https://cdn.sqhk.co/biposuba/Hgegee0/sakapi.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/powerscore_critical_reasoning_bible.pdfIn PDF document text
    • https://cdn.sqhk.co/sawowudin/eQqgfQQ/gotelemobo.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/how_do_you_clean_a_bissell_powersteamer_powerbrush.pdfIn PDF document text
    • https://cdn.sqhk.co/ramidazumiko/mRhfkgd/wood_craft_sticks_dollar_tree.pdfIn PDF document text
    • https://cdn.sqhk.co/bipuzojafa/jdiigfs/birthday_cake_decorating_ideas_chocolate.pdfIn PDF document text
    • https://cdn.sqhk.co/jigixomavola/jegfFjd/gefusudelufalovaloxali.pdfIn PDF document text
    • http://zeboxagekej.sportsontheweb.net/is_elevated_blood_pressure_safe_when_pregnant.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/how_to_use_an_arc_trainer.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/wusobotikimevatalapum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481406/normal_5fe38f638dde2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_601eb74dc5f38.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/sivanira/jingle_bell_rock_sheet_music_clarinet.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/yeah_right_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/shaggy_angel_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/33919625647.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_off0000c935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC935 5436 bytes
SHA-256: a068c680ddfc603550d44b8d0e4010a02d3481c4853cdf48cfaa2a202b4c4c8e
font_01_sfnt_off0000dba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA7 9964 bytes
SHA-256: 14c0c0e9c445e0388f4f9a3edc4ed453292b798d430115944d4f6245b07bcd55