MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The document's content suggests an advance-fee scam, likely related to parcel delivery, and includes urgency lures. The embedded URLs are the primary indicators of compromise, likely leading to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://laborke.ru/uplcv?utm_term=vampire+diaries+book+1+pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9332eb8eea1375c3e46b9356cac0895c/bosafum.pdf
- https://jin-hung.com/userfiles/file/77467452705.pdf
- http://www.rarlaw.net/siteuploads/editorimg/file/15625453514.pdf
- http://andrelandberg.com/userfiles/file/lapave.pdf
- http://marinda.ru/pics/images/file/movavexuruvedu.pdf
- https://girl0229960192.com/upload/users/files/tusadebab.pdf
- http://campingwithconvenience.com/files/files/jezeturuvebedirefutun.pdf
- http://cachnhietcacham.vn/Images_upload/files/45539748556.pdf
- https://www.scmsgroup.org/ckfinder/userfiles/files/88240935586.pdf
- https://titishop.co/upload/files/85738807626.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149e019acd85---48567787127.pdf
- http://alcantara.cz/data/file/nujevekaxep.pdf
- http://aedelsur.com/contenido/files/91660187041.pdf
- http://skrutit-probeg.ru/upload_picture/file/lalezuvozukamanot.pdf
- http://laxycoffee.com/upload/files/dofaruxekuranugutibusej.pdf
- http://bbdecontra.com/userfiles/files/sagubabiwumekotazo.pdf
- http://kammed.com/userfiles/file/bumedesagejak.pdf
- http://varosom.hu/userfiles/files/32644777792.pdf
- http://brilspa.ro/userfiles/file///13275897089.pdf
- https://plewmal-d.com/Uploads/files/99993268872.pdf
- http://zjhywt.com/images/upload/File/39141411750.pdf
- http://stefanourso.com/public/userfiles/file/30002280347.pdf
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1614cebb933df6---29679479873.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cf79.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF79 | 16792 bytes |
font_01_sfnt_off0000e78b.bin026205b70d5d9c805f6617694b78ed39ab78fbc03e49321b81fae5fbb16eea39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE78B | 19088 bytes |
font_02_sfnt_off0001199a.binb9f8ee105451b43381260c5b1ab3ea0005a24dda2bfbbe039c09a6dea263f263 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1199A | 10664 bytes |
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