PDF malware analysis — malicious · 4af346ec321063d3

MALICIOUS

PDF

81.6 KB Created: 2021-09-01 07:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06

MD5: d39ba8f4ed459712bc90beab4f792a08 SHA-1: dcc3a47cc1d56f6dcd9416f2aec4f706aa8a7b5a SHA-256: 4af346ec321063d339a767e5c5a19c9af4238dad9db4a7d972aef183d0122f2e

156 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
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://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/90e4f35107ef28627e2356d42dbbb00c/sowafinalewedodolotafazi.pdf In PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/0aef3a1b214516165415a6fdbeb20bd0/vuzetizugetobabisitut.pdfIn PDF document text
- http://jfhcoaching.nl/userfiles/files/11447714832.pdfIn PDF document text
- http://grandchainfamilyfoundation.org/clients/85333/File/7889496567.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/97c495c660e6afa48cc261d72b5ae23d/gukufepopafulo.pdfIn PDF document text
- https://mabuksusu.com/contents/files/gidalivezurevesuxoto.pdfIn PDF document text
- https://dodatnagarancija.com/userfiles/file/zepiwajerefokojukog.pdfIn PDF document text
- https://dom4m.by/userfiles/files/16812414000.pdfIn PDF document text
- http://minhledtran.com/luutru/files/5773702426.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/27ad583e396b50322625cc1502cd1c1a/35221372107.pdfIn PDF document text
- http://a2itsolutions.com/chop/multimedia/userfiles/file/duxopiwap.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f85d65e91b8---fizupibumuxa.pdfIn PDF document text
- https://associazionedynamica.it/uploads/file/fodifabimile.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/81191724037.pdfIn PDF document text
- https://aviseco.ro/userfiles/file/jababivosinosifokelatirol.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c49e059de67---59997142797.pdfIn PDF document text
- http://muszempilla.com/files/file/lufimavug.pdfIn PDF document text
- http://designbeginnings.com/upload/file/poruj.pdfIn PDF document text
- https://astek-telem.fr/userfiles/file/supenepitizimagax.pdfIn PDF document text
- http://baiduvpn.com/upload/files/68343959865.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=ccleaner+full+version+free+download+2020PDF link annotation
- 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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dae9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDAE9	10896 bytes
SHA-256: `4828821131f5e8b0e1a4e7394762a9f1de9faf863b4f5de3be8f333cea6521e2`
`font_01_sfnt_off0000f45b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF45B	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00010c6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10C6D	16876 bytes
SHA-256: `04d5ff5c71adb6970144ce5d559516d1adaaae95558330a394d2a7e5316bc647`

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