Malicious PDF — malware analysis report

Static analysis result for SHA-256 191b1cab71a7114f…

MALICIOUS

PDF

78.1 KB Created: 2022-04-11 17:40:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 7ae408a33d23b935a6b995ae84862bcd SHA-1: d91c50189ca654d794a6498895202c358f2355fb SHA-256: 191b1cab71a7114f9b107b53473d0ac688761d9e52f83836ae36ad780940a017
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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.
  • 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://lovig.co.za/YmrXLWy8?keyword=ashton%20drake%20dolls%20for%20sale%20near%20me PDF link annotation
    • http://studiorestagno.eu/userfiles/files/rudexifod.pdfIn PDF document text
    • https://tbsva.org/Upload/files/20220315054532.pdfIn PDF document text
    • https://garirebed.weebly.com/uploads/1/3/4/6/134669878/jixanijedev.pdfIn PDF document text
    • https://wefupavoxed.weebly.com/uploads/1/3/2/6/132682659/xiledibejavoxu.pdfIn PDF document text
    • https://sokexuwog.weebly.com/uploads/1/3/4/3/134351495/fusoraxobuwiwobopo.pdfIn PDF document text
    • http://bvsaigonbinhduong.com/uploads/files/tunewakuvuzesatisukaxujup.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16236a4e86dfe6---polelovatebareketevad.pdfIn PDF document text
    • https://dokivubugu.weebly.com/uploads/1/3/4/6/134688884/ginugetadusisuvugaro.pdfIn PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/073ef0ebfa198219acb004e34d8808a9/zilivi.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16227d32603610---gepusilide.pdfIn PDF document text
    • https://ramipataxeki.weebly.com/uploads/1/3/4/4/134483057/269492.pdfIn PDF document text
    • https://zefurevexas.weebly.com/uploads/1/3/5/3/135399706/sajugaf-towesujoni.pdfIn PDF document text
    • https://dubamuxurel.weebly.com/uploads/1/3/4/4/134463085/wiforugewonedifalem.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/diwexupike.pdfIn PDF document text
    • http://studiosantomauro.it/userfiles/files/98894316826.pdfIn PDF document text
    • https://lefeputabewaro.weebly.com/uploads/1/3/2/6/132695219/468589.pdfIn PDF document text
    • https://gotenalonas.weebly.com/uploads/1/3/4/3/134372716/vezilexotimobafekire.pdfIn PDF document text
    • https://successalpha.team/upload/files/14099518307.pdfIn PDF document text
    • https://rodugetimevo.weebly.com/uploads/1/3/1/4/131407281/235389.pdfIn PDF document text
    • https://ngenadmin2.nextgenphotosolutions-beta.com/app/webroot/files/file/2762054275.pdfIn PDF document text
    • https://dexajuvado.weebly.com/uploads/1/3/4/4/134470202/dadibesefimitif.pdfIn PDF document text
    • https://holocaustresearch.pl/nowy/photo/file/zisebovupogonededemunev.pdfIn PDF document text
    • https://peretugi.weebly.com/uploads/1/3/0/7/130739140/795122.pdfIn PDF document text
    • http://cinebuzz.be/uploads/userfiles/files/xewupomomepusufixaveb.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_off0000cb94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB94 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AB 10600 bytes
SHA-256: 6718fa616a6d36306fa7bbcd6925cca278a580610db5e2e6b5917b65d1ec48a9
font_02_sfnt_off0000fbc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC1 17772 bytes
SHA-256: 33e84f40a4093f09ebf4c197f4519bf9918f3ebeefea3ea20f15a8e16658624f