Malicious PDF — malware analysis report

Static analysis result for SHA-256 48fe60da7227733e…

MALICIOUS

PDF

73.1 KB Created: 2021-02-15 02:40:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 2db4094835f4ccfbd98fc994ff8b3dfa SHA-1: d2f3ff7122383c45d2a34b151ae30665d2d1b2e3 SHA-256: 48fe60da7227733e7fbcd74bbd616255bb96b0b4a71069190d91fcf358554820
196 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.
  • 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://baarspo.ru/wix?keyword=excalibur+vari+zone+scope+manual PDF link annotation
    • https://nogapixefakul.weebly.com/uploads/1/3/4/5/134590999/wimedujidujez-sefaverisemab-xalunukuzarota.pdfIn PDF document text
    • https://kuvomudoriri.weebly.com/uploads/1/3/1/4/131406544/4539447.pdfIn PDF document text
    • https://cdn.sqhk.co/virurewev/SkBJijx/84031665436.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370089/normal_600371d8da331.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/gi07Xgg/ahmad_raza_meaning_in_urdu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459470/normal_5fe1eab02b38c.pdfIn PDF document text
    • http://grandov.pro/2019_music_videos08g7w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416792/normal_5fc9464f4e2eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417535/normal_5fffdbe3907ca.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://patesosiw.epizy.com/iupac_naming_practice_worksheets.pdfIn PDF document text
    • http://tatovod.epizy.com/honda_civic_2009_manual_tabela_fipe.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/xoxatomipesefagida.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/crohn_s_disease_guidelines_ecco.pdfIn PDF document text
    • http://fisowafoz.epizy.com/ntuc_income_motor_accident_reporting_centre.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d39a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD39A 5156 bytes
SHA-256: 124ed0d8530cc9c59901fe72c8d05c3f78d0cad0076fc21a6b5551594cfa698e
font_01_sfnt_off0000e505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE505 10768 bytes
SHA-256: 2f80aed19f0488f0205818f20079bf30d9ea58ff25c4fbb911fd46f8a397c9fd
font_02_sfnt_off000109a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f