Malicious PDF — malware analysis report

Static analysis result for SHA-256 edac3c7f74204111…

MALICIOUS

PDF

77.5 KB Created: 2021-01-26 04:28:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5be185b89574be8bbb2896227d465d1b SHA-1: d43439b31a2b7ff67c8918ee6c230897765b8c3b SHA-256: edac3c7f74204111045e4b8681ec5eb7ec05538da39ef71d6be5846c7b9f4844
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://baarspo.ru/wb?keyword=old%20school%20r&%20b%20hits PDF link annotation
    • http://fruitik.space/stickers_memes_dominicanos4qm0l.pdfIn PDF document text
    • http://tk-time.site/48327806380qt0ve.pdfIn PDF document text
    • http://discout.online/new_romance_of_the_three_kingdoms_hack25sdb.pdfIn PDF document text
    • http://edaruzal.xyz/12283261372x07qe.pdfIn PDF document text
    • http://linza.media/nirisasikajivopuc4tv4.pdfIn PDF document text
    • http://eferevole.com/guided_meditation_for_healing_after_surgery9wfh8.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/ijjVggw/kick_2_heroine_photos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389107/normal_5fdba51dd232c.pdfIn PDF document text
    • http://prizinsta365.site/51398624082ddozk.pdfIn PDF document text
    • http://fdvsefwfrw.space/65144778899njoc9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450440/normal_5fce89f4a9ac0.pdfIn PDF document text
    • http://tk-pobeda.site/29413090282u7erj.pdfIn PDF document text
    • http://myfavoritesun.xyz/2014382928362c4s.pdfIn PDF document text
    • http://instasale.company/photosync_transfer_and_backup_photos_videosszzal.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386084/normal_5fe5a84d3ecdf.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_off0000f396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF396 4844 bytes
SHA-256: 4f03ffc6451d274e1c5b39550209ae97e972959a5c37d542a625612ed5a3a72c
font_01_sfnt_off00010408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10408 11076 bytes
SHA-256: 7ae3d3dc44bb7afbec721f7d7f1126b66bc7fbc7736cb3ad01c68d8b0d4ae884