Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa898378eb013676…

MALICIOUS

PDF

78.7 KB Created: 2022-03-29 17:37:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 81c149f74a86c4594cb95b6b300959c5 SHA-1: 794261bb85a690f84d4afb91251dffe37068d806 SHA-256: aa898378eb0136767973ec48f26882c60173ef920801ce9ca9416794cb2d29be
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://colod.co.za/YmrXLWy8?keyword=how%20long%20does%20gopro%20battery%20last%20timelapse PDF link annotation
    • https://najonetawo.weebly.com/uploads/1/3/4/5/134522785/8316696.pdfIn PDF document text
    • http://dopuskvsro.ru/UserFiles/77877290068.pdfIn PDF document text
    • http://iq-money.ru/upload/files/79926436472.pdfIn PDF document text
    • https://kazobutuzag.weebly.com/uploads/1/3/1/1/131164075/jilumelodinegulaluji.pdfIn PDF document text
    • https://kodowukufu.weebly.com/uploads/1/3/1/4/131453871/zaxev.pdfIn PDF document text
    • https://wodokapiv.weebly.com/uploads/1/3/4/5/134584818/ligazevapazosim-tefitilobufej.pdfIn PDF document text
    • http://b-solutions.net/userfiles/file/lipokivixadi.pdfIn PDF document text
    • https://tunhuaduytan.com/upload/userfiles/files/pomexuwexixe.pdfIn PDF document text
    • https://bimipesetasezi.weebly.com/uploads/1/3/4/0/134017520/6030929.pdfIn PDF document text
    • http://scuolascifondocortinadolomiti.it/userfiles/files/wogimim.pdfIn PDF document text
    • http://tourtraveltalk.com/app/webroot/js/kcfinder/upload/files/vogapotipure.pdfIn PDF document text
    • http://nage-z.com/ckfinder/userfiles/files/teder.pdfIn PDF document text
    • https://latuguno.weebly.com/uploads/1/3/1/6/131606113/latikenuko_vozewupune_rasilisesuwanog.pdfIn PDF document text
    • https://sibservis.com/ckfinder/userfiles/files/zedesi.pdfIn PDF document text
    • https://www.mkoe.hu/public/plugins/ckeditor/kcfinder/upload/files/15225597393.pdfIn PDF document text
    • http://eoto.org/assets/kcfinder/upload/files/67572605543.pdfIn PDF document text
    • https://lovilubavovujag.weebly.com/uploads/1/3/4/6/134664731/rupajagupopekifa.pdfIn PDF document text
    • https://kuvixajixi.weebly.com/uploads/1/3/1/6/131637850/batiko_powiwe_vovofol_basapozefuxulu.pdfIn PDF document text
    • http://umpn.pnl.ac.id/asset/kcfinder/upload/files/zukaxeg.pdfIn PDF document text
    • https://jividakole.weebly.com/uploads/1/3/6/0/136090299/b5b66e05.pdfIn PDF document text
    • http://divorceinhungary.hu/kcfinder/upload/files/94012488216.pdfIn PDF document text
    • https://nusosujorogu.weebly.com/uploads/1/3/4/5/134589145/pexulenovi.pdfIn PDF document text
    • https://vuveresob.weebly.com/uploads/1/3/4/5/134589217/3611764.pdfIn PDF document text
    • https://tijisuxijofijo.weebly.com/uploads/1/3/4/3/134374136/lozowunoxaxosezelaba.pdfIn PDF document text
    • https://xizenebijebis.weebly.com/uploads/1/3/2/3/132303300/ebfdcc08e.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE47 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000e4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E6 16904 bytes
SHA-256: b23b2c3f7639d001a68c54bc51e4f46e187b54a0913c9bb35d422149d9069d36
font_02_sfnt_off0001112a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1112A 11064 bytes
SHA-256: cbcd0404983f3a0eb7633052578ceb54d245fbd5c773e0c860d7cddf342188e4