MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous unknown PDF files hosted on compromised websites, suggesting a phishing or malware distribution scheme. The presence of a 'download button' heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c154854fd4e---6531269280.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/d6g4uev8if5na7a77m243fked3/soxutox.pdf
- http://goref.ru/files/file/rubex.pdf
- http://mfahk.com/upload/files/73064415716.pdf
- http://kozelskadm.ru/files/uploads/files/poganiguneponazutowif.pdf
- http://diversecityuk.com/userfiles/file/59986612747.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6e1194d1a0---36101220302.pdf
- http://xedaphcm.com/luutru/files/melavizav.pdf
- https://sanruouvang.net/images/uploaded/file/10277033911.pdf
- https://adreshosting.com/calisma2/files/uploads/zazoje.pdf
- http://studiogallerani.it/userfiles/files/fuxuzadu.pdf
- http://younewstoday.com/task/userimages/file/punofudimimoxefuw.pdf
- http://alliance-ltd.com/userfiles/segazulewugafivife.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608abb7cc3bf1---6867095311.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/26fc6910fdec8a4d4cd89a2320e44fa7/giwapirasujitibo.pdf
- http://mid-europe-ex.com/images/blog//file/dapewumezodamumebofeziz.pdf
- http://quick-thailand.com/images/uploads/file/7034320369.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608123e536097---41585903382.pdf
- https://hanahana.vn/media/ftp/file/61327560120.pdf
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/193e647ee902bd36c895dc3d47564672/68965765016.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb506381a6d---bujogubaj.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc23dd308f---91535831478.pdf
- http://ebiocell.com/uploadfile/file///2021072804052529.pdf
- http://aucoindeshalles.com/menu/file/56274543053.pdf
- http://master-sign.ru/ckfinder/userfiles/files/momisapux.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=plantilla+a4+escribir+recto+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_off0000e5e2.bind3ccf223c9b6e149d0c7c454064dde7ec88b718a57f832d98ab28fc0bd7d0511 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E2 | 10832 bytes |
font_01_sfnt_off0000fecf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFECF | 16792 bytes |
font_02_sfnt_off000116e1.bin1206edcdded21bf701c7ca41bb17caeb4cca2aaf82a561d08bf71cc8cc605c42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116E1 | 20188 bytes |
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