Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8ccbc37a8475d5…

MALICIOUS

PDF

72.2 KB Created: 2021-10-04 20:15:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: f0b7b81d808ca6d28d2d70a6fd32b1b2 SHA-1: 6e6b16f4f9eb4f9ef6947877ec6324e4ac914abe SHA-256: aa8ccbc37a8475d53ab42fd042e273c91725f2a20319254e5a9e5d32f617eb27
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://oniceh.ru/uplcv?utm_term=life+of+pi+full+movie+in+tamil+watch+online PDF link annotation
    • http://p-jtech.com/userData/board/file/18237818097.pdfIn PDF document text
    • https://at2-turbo-j3t.com/contents/files/mowob.pdfIn PDF document text
    • http://virtualcharityevents.com/vce_cake/files/files/kaburopujogewi.pdfIn PDF document text
    • http://magiepourenfants.com/images/mediamanager/file/99315422325.pdfIn PDF document text
    • https://alohasafaris.com/files/zeratag.pdfIn PDF document text
    • https://www.gitialiganjlko.org/ckfinder/userfiles/files/14059746745.pdfIn PDF document text
    • http://446888.top/userfiles/file/xinuzumibaf.pdfIn PDF document text
    • https://actaviaserica.org/board/file/files/lafafatoziwuz.pdfIn PDF document text
    • https://congnghiepxd204.vn/upload/files/39134295467.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/fd7e7956f9f609aae071ce4a98017253/zabijumif.pdfIn PDF document text
    • http://n-production.com/upload/fckeditor/file/saxopimesugavigibu.pdfIn PDF document text
    • https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b91272b35c---voragodevabujezatujawu.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/pokikawamulef.pdfIn PDF document text
    • http://associatedreclaimed.reclaimedoils.com/userfiles/files/3589942220.pdfIn PDF document text
    • https://didacostruzioni.it/userfiles/file/30983660548.pdfIn PDF document text
    • http://kitpaisal.com/mypicture/file/tuzapoxetizosu.pdfIn PDF document text
    • https://agrando.cz/files/file/sirafodikafuler.pdfIn PDF document text
    • http://offokin.ru/sites/default/files/file/60160282415.pdfIn PDF document text
    • https://www.pirkitpadangas.lt/ckfinder/userfiles/files/milubexeliregu.pdfIn PDF document text
    • http://yongchengtech.com/uploads/files/202109121053449918.pdfIn PDF document text
    • http://zuche0551.com/upload/file/15994202001.pdfIn PDF document text
    • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/87f4233ce8284fdce1fbf6aeef4325af/29849918523.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_off0000b67c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB67C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ce8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8E 17216 bytes
SHA-256: 460923f05c6bd93275b6df3762e9c854fd18d69d4585365757bf4c898fe0a018
font_02_sfnt_off0000fa96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA96 10688 bytes
SHA-256: f932aa39b00d3bb3834747a2193e87adc4aa7701fd2a965d645c0d8a55027f4e

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