MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to distribute further malware or phishing content. The presence of these links and the overall detection strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a45453bb239674a77cce6846a0ada8b4/jofabozi.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7483523da---26671403719.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/46a692b4b310fc26255e5637ee75bc75/tedimelifato.pdf
- http://bbfederico2.net/userfiles/file/2403097300.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080a65e92390---97808841149.pdf
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/a355e906d68a83be532c6951238d30c4/54268662291.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/i1g1gikuibcim74h4afpm3cfb7/75509030597.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1608ccf0022ad5---lozefasovowejubejeropakob.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3c09be66002ca55dd6f20c2df71ceb9e/52013606660.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/d697ad5e8b49c9116992affbe9868e76/64316866842.pdf
- https://cottonweb.net/userfiles/file/93494565546.pdf
- http://sibservis.com/ckfinder/userfiles/files/nasafuwolazitav.pdf
- http://kfbi.ru/content/file/guputajamilibotanafo.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/9b0b9d991477317a1b892ebb15f9d2fa/39281098423.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/1c35bcb86748c49e86e9e2bb307d900a/31598476530.pdf
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/62i6026iorc26eeml2ev1ei541/jivitunozudapimu.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160c579b86dfcc---xixoto.pdf
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/87375713029.pdf
- http://hotelbelleepoque.bg/userfiles/file/88129893103.pdf
- https://bandai-k.com/userfiles/file/85684142239.pdf
- http://filatelianumismaticaumbra.it/userfiles/file/vunuvupojudezuvanad.pdf
- http://timeyear-v.com/userfiles/file/31842128770.pdf
- http://vipnjl.com/userfiles/files/wifaregewa.pdf
- http://bclgrouptt.com/userfiles/file/wovivedu.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/5bae49f9685821589c9bb31501d137fb/jajelobo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=download+fifty+shades+of+grey+book
- 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_off0000d086.bin251f9f1524a45cdf386df92253d363d419f98a12826c6a691e588868c104e0b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD086 | 11068 bytes |
font_01_sfnt_off0000ea13.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA13 | 16792 bytes |
font_02_sfnt_off00010225.binee4ec539543108c467ff3db5d7f93d4e3287ef5db700a1c5f2fa90d96f48d7ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10225 | 17040 bytes |
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