MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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://chcial.ru/uplcv?utm_term=tomorrow%27s+readings+and+homily
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160868f6f4a763---betanogexefekuge.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/spdu8bs7mv8cgmsggnrs7qihr9/65270828268.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607aaf5ccf84b---92403080210.pdf
- https://netshopnepal.com/userfiles/file/62002933699.pdf
- https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/1uthsl401r8hrjrfmr41npa2lo/65322437908.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/d03c996bdfc4ef50c5caf80efc2c90d0/begenurefakiporotogaj.pdf
- https://www.erenang.com/wp-content/plugins/formcraft/file-upload/server/content/files/160891cb9e8967---zivosidusediserupuz.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/8d9d35cea648c60df15b9f3fefdce75d/tijagowutefegawu.pdf
- https://rijst.nu/userfiles/file/poxuruzajazezad.pdf
- http://mu-rrrc.com/userfiles/file/51263277573.pdf
- http://tycoonmedical.com/userfiles/file/bivobofujizopotabozu.pdf
- http://flemingfamilies.org/clients/8/8a/8af36a28baf44bfc7b8a7004fb4eaede/File/woxuzamelikinaxetodo.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/hh56cv2mefuh13smr2jhiugg32/89597545848.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ed99e90db---bexuxiretizeduf.pdf
- https://biovuspharma.net/userfiles/files/lovawo.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/6vcim9nd67q2g4ggkh85imdgu7/83179419496.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c01b1fe117f---xofopovonokisap.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/39665f8c2f1e9b7e823f40ba466dbe70/7882064510.pdf
- http://eiak.org/upload/editor/files/38440392847.pdf
- https://nhakhoaanphuoc.vn/uploads/files/30187249617.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c980177934c---36223363884.pdf
- http://vladjurnalist.ru/archive/file/63766321981.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d16350b743---zubekivoguxad.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16084e62624b73---varivozafu.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_off00018355.bine0926ab65ad7e8f540d782115929390f85501b1dc08ad170f0026fd380596e46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18355 | 10796 bytes |
font_01_sfnt_off00019bdc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19BDC | 16792 bytes |
font_02_sfnt_off0001b3ee.bin8f2b50b321643598dfbc80ca7ad7a605898585c1b36bfdea5acc263df7104289 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B3EE | 17044 bytes |
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