Malicious PDF — malware analysis report

Static analysis result for SHA-256 edbe30efb9c68fef…

MALICIOUS

PDF

75.1 KB Created: 2021-03-02 14:40:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ed438803e8873fd0254d18116bd77e99 SHA-1: 6b79dae43dfb6f31015dc8990edfb97798544d25 SHA-256: edbe30efb9c68fef4a4252230f1b2683845aa9261f5597b6995a78a51100432d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/strik?utm_term=electrical+installation+practical+work+pdf PDF link annotation
    • http://weinmvc.net/wesinofx8ez.pdfIn PDF document text
    • https://cdn.sqhk.co/mareduviger/GiegfSN/cartoon_channel_list_with_price.pdfIn PDF document text
    • http://gumidaz.medianewsonline.com/hp_laserjet_p3015_toner_cartridge_replacement.pdfIn PDF document text
    • http://static-get.top/what_is_the_healthiest_sandwich_at_jersey_mikesqrtmn.pdfIn PDF document text
    • https://cdn.sqhk.co/mibazudifij/Fijhdgi/ric_freeman_tyler_tx.pdfIn PDF document text
    • http://netekepipavosis.sportsontheweb.net/princeton_review_ap_calculus_ab_premium_prep_2021.pdfIn PDF document text
    • http://jushq.club/can_fasting_regenerate_beta_cellsj8k8t.pdfIn PDF document text
    • https://cdn.sqhk.co/geruvijiwiw/NjjeGij/43513596254.pdfIn PDF document text
    • https://patoxudiza.weebly.com/uploads/1/3/0/7/130739147/cc09df53.pdfIn PDF document text
    • https://cdn.sqhk.co/rewakevutel/c8gjkid/final_castle_defence_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/forinabam/g4FnLe7/zejub.pdfIn PDF document text
    • http://passive-income.ru/60049527450b3ony.pdfIn PDF document text
    • http://armlur.space/bobol_wifi_tetangga_dengan_android3li3g.pdfIn PDF document text
    • https://kofivenemiwelew.weebly.com/uploads/1/3/1/3/131380814/xokot_paxik.pdfIn PDF document text
    • http://hempmap.ru/ruwogeltz7qx.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_off0000ea04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA04 5264 bytes
SHA-256: 70f7e62ca95e1587d35501af795b575cc97d29ac10a372a4ce181d2e7f362866
font_01_sfnt_off0000fc11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC11 10344 bytes
SHA-256: 2b00200cd1db85c8bd4f6a1f149182c1f6bfde9435b4ab746ef2939591fb8442