PDF malware analysis — malicious · bd9b19f85e818f5f

MALICIOUS

PDF

91.5 KB Created: 2021-06-25 21:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05

MD5: d63a85b4450d47e8c4ca7a4d2637e973 SHA-1: e1e9b649f67d28c2045581ef336bca4c4dd47044 SHA-256: bd9b19f85e818f5fda690cbb472817b34806eeef99cee8c9627184ab25e62352

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it's designed to lead users to malicious content or phishing sites. The presence of multiple external URIs and link farms indicates a phishing or redirection attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9932

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://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160753ae05657c---nedoz.pdf In PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/8be9454d9bf1e99059dab3a9546b89a1/61748348602.pdfIn PDF document text
- http://a2itsolutions.com/chop/multimedia/userfiles/file/riridapi.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077518e28358---1199471024.pdfIn PDF document text
- https://advik.net/userfiles/file/52862745618.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/fce0af024afe7e7044ec771eb96c896c/xedeviwur.pdfIn PDF document text
- https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/e4587fbc9bd489d489e7bc0c87edefe0/40925648694.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/1210206695.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ef5757179---sabutep.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/62142227738.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16094353e5e3d8---24822124158.pdfIn PDF document text
- http://moda-minulosti.cz/docs/momin/file/foxelavewajisudojanepek.pdfIn PDF document text
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/8dea940aad683e72e7f12f727a0be14d/56563450287.pdfIn PDF document text
- http://cka-shiba.com/ckfinder/userfiles/files/70307242329.pdfIn PDF document text
- http://outspokenholland.com/userfiles/fckFile/20210622201551.pdfIn PDF document text
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ab296124b---89437970751.pdfIn PDF document text
- http://bmhs71.com/clients/c/c9/c97ff408e01126d63256cf68004d6641/File/2804595163.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b975f0664---25493612997.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/0icsgifp87qr5f0qjjggio2t72/65014609543.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a00107d9f62---86234160334.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16083fe2ef2396---xijug.pdfIn PDF document text
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160abf1924a40c---sapapusotexi.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/421fb9a717b1b516ce231618b9ccfab3/bogokilal.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=flour+production+by+countryPDF 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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e753.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE753	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000ff6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF6A	10376 bytes
SHA-256: `9829ed92b559ef470f171e62dabaa75f8e07aca64ab127b05a8ad94919c49e05`
`font_02_sfnt_off000116af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x116AF	16640 bytes
SHA-256: `e3972dda3191a8d8a416d87aacbe51068ed91d07674cfb1ab4fd231c7c40c802`
`font_03_sfnt_off000141c8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x141C8	18872 bytes
SHA-256: `094f891a0fe09b087c99c8384611183ba4f6c3f30ce1ea7a338bcc6f207605e6`

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