MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam, where the document prompts the user to call a phone number. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/cae3c48ffe30379a9ba0d3c0bad2e21a/jagaxapuminitej.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608104c7be481---27909999025.pdf
- https://fruzsiflame.hu/userfiles/file/48695796632.pdf
- http://ruben.pl/ckfinder/userfiles/files/pokewifatow.pdf
- http://toyotarent.kr/FileData/ckfinder/files/20210607_498940C9FBAD9333.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/rqoms1a7ket9jkd8faud89gd1e/vufex.pdf
- http://ya-ke.cn/admin/upload/texuliso.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a292bf0562d---binejuri.pdf
- http://lohsclassof70.com/clients/3/31/31ca850ff086a58b81c8700e10a01852/File/4843008503.pdf
- https://norservis.com/files/files/resepom.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/71081270b6ddda8c0832c6c2e2c6bcaf/fosifoxesetemugifex.pdf
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607933047ee0c---fuwunepepazinipot.pdf
- http://allycatering.com/userfiles/92457871715.pdf
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/26cd8dd4ed9073b232e5f11b0706d6fa/60505286354.pdf
- http://adance0112.com/upfile/editor/file/nokagab.pdf
- http://learningkey.org/userfiles/sukorurogoremageb.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fc0cf6c94f28f5b0cba65e13eb7462ca/8539813291.pdf
- http://wooshin.kr/uploaded/file/140694899360b2f81ac3823.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/29b40e4ad6bf0e9fc73da9507e240a9d/pipaxinebenufadojidosidin.pdf
- http://asesorgubernamental.com/images/file/damevajotorepenewafevomun.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c95acbc1c79---mimananagutu.pdf
- http://tuzvedo.hu/elemek/file/xinogofebemezubusukudu.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1607f133634785---5238993565.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d935904e10---wutetizu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=steamboat+touring+center
- 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_off0000e97e.binf6396a55f39e171e4aef4217ead16c8823fef6cb817ca321ce5168308840d736 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE97E | 10672 bytes |
font_01_sfnt_off000101f4.binf913ae8360f02b19264601d85d07db2ab4428538572b8ed5b245ee3a5043342b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F4 | 17860 bytes |
font_02_sfnt_off0001302e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1302E | 16792 bytes |
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