PDF malware analysis — malicious · 3866bca53f65bce2

MALICIOUS

PDF

74.8 KB Created: 2021-08-16 03:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27

MD5: c7620033245170c8ed4624e4f0bd6800 SHA-1: 8cafc9839119c547395888b2ebf45214b01ef8f0 SHA-256: 3866bca53f65bce2a5821366d874fa9807ca0fb8b5ea025df86825d74b8a8da5

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. Heuristics indicate this is a link farm designed to direct users to potentially malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent, likely phishing or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.5474

Heuristics 5

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
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://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/36c7bf2f9fc9a0a1a4578c90b8338f35/pobigomuromemisemew.pdf In PDF document text
- https://ehlibeytalimleri.com/resimler/files/2587888763.pdfIn PDF document text
- https://larioenergy.net/uploads/file/66862157506.pdfIn PDF document text
- http://hyundai-baoloc.com/luutru/files/86849059689.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16075d9d2d0680---29926796711.pdfIn PDF document text
- http://cuacuonnhanh.vn/Images_upload/files/52005077515.pdfIn PDF document text
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/0c5434bcad4bf315f5407e6e912bc077/fapekebonan.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610901490e669---befoxev.pdfIn PDF document text
- https://salwangurugram.com/files/12148507994.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/16109c6597d0d3---47284852335.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160740e28b1f37---24245697474.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d5ad2f73d---pabojebonekaxowevidije.pdfIn PDF document text
- http://nbpcpentecostalchurch.com/clients/65183/File/67486830202.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/3p4vceej5f1vp351gqt4okkb3n/73562104996.pdfIn PDF document text
- https://baglab.pl/galeria/file/jedekiwadef.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/e52a0f805a47f002c2924390b73bfeb1/15940746277.pdfIn PDF document text
- http://brucemsmithlaw.com/clients/e/e2/e252bfde01ef004f685a9648d307a4b9/File/budibivomigiwimilivovul.pdfIn PDF document text
- https://hkfew.org.hk/ckfinder/userfiles/files/xatagiwefap.pdfIn PDF document text
- https://betalinktech.com/blmedia/file/xawolubi.pdfIn PDF document text
- http://rbtyutj01.com/userfiles/files/jujiniferisomobitel.pdfIn PDF document text
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/e4f37f1e3e491c8768e7db84767e6410/ruzelage.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e252e93e0---73400375236.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ff40dc2e0---48039081008.pdfIn PDF document text
- http://tate79.com/clients/868750/File/93756494164.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+play+cracked+xbox+360+gamesPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df68.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF68	11648 bytes
SHA-256: `79c26363a3f00bfdc2496849c58c83f395a1182c9be760e790e13ba350154f41`
`font_01_sfnt_off0000fadf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFADF	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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