MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload directories and disposable hosting sites. The presence of embedded URLs suggests an attempt to redirect users to phishing or malware-hosting sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://archism.ru/uplcv?utm_term=daily+spins+coin+master+2020
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/63f89d1794364999f8f1a9beb212760c/mexalexoz.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/b7308d3cfdd240d351a9066c14b25f41/kexite.pdf
- https://imagebeaute.fr/userfiles/file/bavamilinofivuxinazu.pdf
- http://standardamulet.com/files/files/82274294429.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/a25e58e4e1f2befee5491b49b65803f2/mapinaguzamumiguripevupod.pdf
- http://qtjdb.com/UploadFile/2021/06/12/file/20210612_182637_167.pdf
- https://economiadecomunion.net/ckfinder/userfiles/files/67628878580.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/2a5a8042be11270e7060b2dd37099210/vixezajufifaz.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/c005ca26aab737ec20dcbd4007b8a49e/salugenate.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/u37bceqv6u2hdphk8e5guo13e6/kezewotenofaxud.pdf
- https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/abgnik14dgvl91dact9ov23fv0/nukizinulezobobogu.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb8d7b0e6f---73315475207.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbbfe21a388---60189816349.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/5a3a7911e2f601746db071913d903a62/97998048057.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608a50bcf151c---56281831566.pdf
- https://grupo-kayros.com/userfiles/file/wexogiresukugi.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094366c7a231---82854110484.pdf
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/t19s5jvmceaut4im0tak87ique/gaserisir.pdf
- http://jyjwqj.com/uploadfile/file///2021062921585690.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/d6eci3n0dbvdjvea55mt285pfb/31712852317.pdf
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/fa697342fcc929dcad008160e4d081e3/5477855299.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/8m4te0cn5262t0ii2g4rb0erun/nuniforipidopi.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160710442393e3---saboxafadapazanumekir.pdf
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/ef0f0661292f4234e7874e385bfa77d8/6433378606.pdf
- http://esthebel.de/userfiles/file/21044570749.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_off0001020a.bin161e496f2540800475d4b6167dbd3c9ac8fe6259465fc45fff3a63bdc7565c3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1020A | 16748 bytes |
font_01_sfnt_off00012d93.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D93 | 16792 bytes |
font_02_sfnt_off000145aa.bincdaa8c5b645d77c28d274a1764f3d5b0b17aa5f5680df250a3c309b592a02a12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145AA | 10892 bytes |
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