MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress upload directories. These links likely serve as a lure to download further malicious content, aligning with a phishing or credential harvesting attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a102cabdbd---gomux.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/131342ccbe4fcdea66b573600c2bc85a/mobugofatej.pdf
- https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/708d78da1fc27d429b3faa602ed787f9/xevilokubapawiluwawanuri.pdf
- https://grancom.by/upload/docs/31354432703.pdf
- http://riggi.ru/userfiles/file/xenujaweboro.pdf
- http://ristoranteibucanieri.it/userfiles/files/15615865497.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab37ee7a74a---jinefuleludurevi.pdf
- http://andlupa.com/userfiles/file/wozoxololevexilu.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/8bac60fd720c778a668afdec8a7a01f2/tikuj.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2e4e3ba04bdd48a57ae4d8ec1d501102/dusibozotedazepizabari.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/2be8fa81b60b45e365d24e6342dc55fb/kogosejudezalemokudokib.pdf
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/ir4kh9qc2hgebfdu6k3feh4ljc/83815943556.pdf
- http://beerskiboot.com/img/upload/file/86912347825.pdf
- http://drapa-technika.cz/UserFiles/File/buvesa.pdf
- http://dijladentalcenter-qa.com/userfiles/file/zusekerizi.pdf
- http://asianmosaicnyc.com/userfiles/file/kilujeb.pdf
- http://asupuro.com/user_data/image//file/52392759398.pdf
- https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cd2e7fc2dda---kovas.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/a88199456b87d6fcfe8601b95b6a4de4/mewunivinopud.pdf
- http://yokohama-model.com/userfiles/files/98159841575.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072103855b41---kolotosemegositagojil.pdf
- http://camberwelltaxi.com/survey/userfiles/files/sonexajekimomemefunuxuda.pdf
- http://menafundinfo.com/userfiles/file/22720179312.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/4c65494a36725c16b3fe6456050d31be/mupupatosi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=about+time+theme+piano
- http://e1pl2.nazwa.pl/busy/fotki/file/liwigutodewipux.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_off0000ebb7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBB7 | 16792 bytes |
font_01_sfnt_off000103c9.bindf8a42a9d5cb5a0e9ff4dde254dde4d9f23f21f2214e5d4aa6b2c6ad9b0eb964 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103C9 | 17340 bytes |
font_02_sfnt_off00013102.bin15aa9c5a80f59e63798c816fe2d863b9669270a3959261c71ee7e6cd571e0fed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13102 | 10424 bytes |
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