MALICIOUS
176
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, specifically as a phishing trojan. Heuristics indicate it functions as a link farm hosted on compromised CMS uploads, likely to obscure the true destination. The document's content, though heavily obfuscated, suggests a callback phishing or tech-support scam pretext, aiming to trick the user into initiating a phone call. No scripts were extracted, limiting the analysis of its execution behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4e725d158---28425895464.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/0fs75bs2fmm16rhuqmeh1kvb10/6563353131.pdf
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089454931aaf---muwiliwelepodupote.pdf
- http://pizzeriadevita.it/userfiles/files/kuludaludefomowuk.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/d047bb30a6c9e163fcdb2a9ebf58b4b8/83560189501.pdf
- https://pakistanchristiancongress.org/userfiles/file/pidaxosomolotexemo.pdf
- http://feynburg-uhren.de/uploads/93839574791.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/86e55ccc7955408936bc055dc92c989e/90210384670.pdf
- http://goldenpeak.it/userfiles/files/tatomam.pdf
- https://burgas-remonti.com/userfiles/file/zujipuxawine.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/mfrtpo2vfrjddr6rqaiuiv1dp1/senoruzeguno.pdf
- https://bompentax.com/quangbasanpham/app/webroot/upload/image/files/13325630098.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/v5p5j64e695qgji23co9ek7i20/27461252545.pdf
- http://wonderful-foods.net/userfiles/file/33825585145.pdf
- http://astorandblack.net/emailer/userfiles/file/9411178532.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/a8f6c8a7pd23a6o9i525e5cfc6/najavuluna.pdf
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/spsk4tjmivt3bvr296qcc5ephm/12342791742.pdf
- http://www.addvanceo.info/userfiles/files/33655420953.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085cb08a88a3---bademumasix.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d7abc4cc0c---6433265811.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/00im24q1j4jiqrdvagll06fcs4/rugewanibezivozujum.pdf
- http://canavesiobruno-architetti.it/userfiles/files/13386258943.pdf
- http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45645509151.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=understanding+economic+indicators+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_off0000e130.bin17d0f01f06f27deb2c6d1b0995065cf74b71e1df95acfa7194146cbc0f8df34a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE130 | 17424 bytes |
font_01_sfnt_off00010e34.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E34 | 16792 bytes |
font_02_sfnt_off0001264b.binbc953df67587992a15a9586c8ecea2e58fc2ae6517307e6e8fbe20c69b5e96b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1264B | 10924 bytes |
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