MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting an attempt to redirect users to malicious content. The 'SE_CALLBACK_LURE' heuristic further suggests a potential callback phishing or tech-support scam pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://historia-bfured.hu/userfiles/file/51350900525.pdf
- http://cartopack.com/Images/file/migow.pdf
- http://placc.info/up_image/69138555688.pdf
- https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/01aba88feb2723507e62ad6fb3b41fe5/3585953041.pdf
- http://usaoxin.com/userfiles/2021-5/file/94724751943.pdf
- http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/subonuvolumuwirerokajekuv.pdf
- http://doks-films.com/pcms/content/file/gonefakatefasujuwe.pdf
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa51131c10---67819004677.pdf
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5b508bb197b524fcbaa889d2205892f6/gufelipovurubezosavinew.pdf
- https://alice-immo.com/userfiles/file/87054728148.pdf
- https://datajournonepal.org/files/dedifipotikubebonenib.pdf
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd40371134---kuramuraleluba.pdf
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/pgg7ad1v756h1alg1hgdiqkgdm/58973265628.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/7af079do4a6f4k95o1relpccb0/26278175489.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d9fee8690f4e1d424a7d6c51f142fc7d/37969568069.pdf
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/4mdvq9ff47tmgp1r9ohc7t339u/nezajerovifasufawojavujix.pdf
- http://diversecityuk.com/userfiles/file/dibakafifewe.pdf
- http://chixue.com/uploadfile/file/20210602224842.pdf
- http://bhavalaya.org/ckfinder/userfiles/files/53346695436.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/8c0619337ce9322ebc0771fa5b7eb36d/25643841275.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e5ba55abb---debawolux.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084cbc4ae608---93107591752.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/684d418d23dfc0a2b77dde988efc4bfb/23003942516.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea0b982d0b---39679032803.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=premiere+text+template
- 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_off00010d8d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8D | 16792 bytes |
font_01_sfnt_off000125a4.binb020e58df777f3d79e5f6a7575641f0a592bc98784e3d551c2952b3e76b69cb7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125A4 | 10124 bytes |
font_02_sfnt_off00013c3c.bin7ab49241ccaff0e5078c881e3da034f72d0950f0da069eff3764ec6cb94898ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C3C | 17052 bytes |
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