MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. No scripts were extracted, but the presence of these links strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/6df48c9cb3cec60ec4f584979ff000e8/dibolegunawawukanolikexex.pdf In PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086b5e919a54---33845307725.pdfIn PDF document text
- http://2ds-creations.fr/userfiles/file/zupawibojojiwitolarami.pdfIn PDF document text
- https://adsbudget.net/userfiles/file/sivufapafowevemi.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4ea1d61a1---mewonatotekinamuwu.pdfIn PDF document text
- http://yulintimber.cn/d/files/ruxeroxapozixedejawewox.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b508ddf881---turokopixujeruropedot.pdfIn PDF document text
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/a10f02885d5a5979dc06957d61e2d886/zaduxamup.pdfIn PDF document text
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607509a3df46e---37482280870.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/41367841104.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/f89582d56487d7f8dc40d1a30f838ee8/88754325843.pdfIn PDF document text
- http://onlinetradeshow.ir/uploads/files/kuxatutinatoz.pdfIn PDF document text
- http://nhs1980alumni.com/clients/878257/File/dupifexibas.pdfIn PDF document text
- https://armandofalconi.net/userfiles/file/17103811370.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/6kqi375i9019ub3igf6568laag/wuloxefijemisuzebowej.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16090c6ebc8938---29030394625.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/kbn6fbsg85ltq7irha5eaf9d22/wisarawopinere.pdfIn PDF document text
- http://lmyc.net/clients/875386/File/24580008278.pdfIn PDF document text
- https://albawadiroad.com/userfiles/files/likipuk.pdfIn PDF document text
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607177d945189---50723407671.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070be453428f---bazufoxipilobuwefedanuzu.pdfIn PDF document text
- http://applexin.com/ttpsea/files/file/dulumofikomaxutozov.pdfIn PDF document text
- http://hotdeals24x7.com/ci/userfiles/files/gorewefukoda.pdfIn PDF document text
- https://nistd.in/userfiles/file/nofogudomi.pdfIn PDF document text
- https://sogelec-eng.com/files/ckfinder/files/debuwitunugegare.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=andy+thompson+quilterPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f4a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4A8 | 16628 bytes |
SHA-256: 21b2dd8a9ac4d07e102ce1c90643a7abf269d1c0f17ce90c2be3b1da13bea34c |
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font_01_sfnt_off00011f99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F99 | 10836 bytes |
SHA-256: 944d5cf91a02c8b338deecf5911ffa729c3cab4446615e508f4b2c1fb30269e0 |
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font_02_sfnt_off00013831.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13831 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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