MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document is identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf and references a "Bash shell script cheat sheet", likely a lure to encourage users to click the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/ee64df6556d6a3212277afe35dacd49e/47440380738.pdf In PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd8b9b2c31---42281862236.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/7dd9dfc63ee26a28a24076f6b728b72d/jenenutonilagozomoruxa.pdfIn PDF document text
- https://101doctor.com/uploads/ckfiles/files/60b2a4e8192a6.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0281bf4a4---nodeke.pdfIn PDF document text
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/f18302617b272f8508d1b7c1958260f8/419588194.pdfIn PDF document text
- https://baongochoa.com/upload/file/lipujexoxelitara.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607015ca5d16d---napexozamesasuduvasojeg.pdfIn PDF document text
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/lf6k2ckb91aa2a12hmng46njh3/vexupetoteruxipomedaw.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce7ce3f724---64658311976.pdfIn PDF document text
- http://piemonteforyou.it/userfiles/file/96071458696.pdfIn PDF document text
- https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/5df749aa81d997e6b33bd21d0b025a22/6164449628.pdfIn PDF document text
- https://floraplant.gr/FCKeditor/userimages/file/dezimemirarirugomujem.pdfIn PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/ocb604027frn0dd48lgudde1l6/87476184817.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16071ecb0956c1---34650119778.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/5567f6b29e69382c20834a5bc4b890a8/95492296043.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=bash+shell+script+cheat+sheetPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF13 | 5068 bytes |
SHA-256: 0ac0de120467ccf6c01b5e2f1a84caa7cf8a2eb304c1c2731571814b704bd69f |
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font_01_sfnt_off0001004a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1004A | 12660 bytes |
SHA-256: 9e0563c162e45a00e79301a546cfdd7218f57efaa092f50976fb07c37ead1d14 |
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