MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm directing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The file's structure and embedded URLs are consistent with a malicious document designed to lure users to external, potentially harmful, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9895
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 http://csc-0411.com/userfiles/file/20210706002851_p5es0w.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/1d0dafa8a0786b04fe4ed3eb214384a5/76051823054.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607375f504bd1---pojuloveniz.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607af78552c2f---lenapisilebubis.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1e135ba80---rogusilafemod.pdf
- http://hyosangjo.com/userfiles/file/20210622171922.pdf
- https://gw21.ch/uploads/userfiles/file/26502769129.pdf
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/p5pd29k5jn0kairaik0hu6uqol/25831206613.pdf
- https://nbtele.com/en/cache/fck_files/file/zezixow.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d8a91b5a7f4---xetodapedapafare.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b074ecb2545---37333058372.pdf
- https://ive-cal.it/file/dofuguwaseburamu.pdf
- http://pn-tech.net/userData/board/file/dutugotuxasavavi.pdf
- https://mlmrockstars.com/ckfinder/userfiles/files/10743079973.pdf
- http://kppzp.pl/userfiles/file/ziporimesotutudan.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/30948aa2fb06c57e1482882bc5af8ddb/49117127981.pdf
- http://sattamatkapatti.com/userfiles/file/46021656442.pdf
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/6b481ec60a66bb49dd9d085861577efe/judemukijeli.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/bb35ee0e38408b798b89025b0c23ab0e/funudevezumotijiririsej.pdf
- http://rococosofa.com/files/files/74906295620.pdf
- http://unityproductions.com/upload/files/8370198297.pdf
- http://aktifbant.com/resimler/files/94572700584.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=meaning+of+rapport+in+english
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off000134bc.bin5a4da803bbd7081b591fd91046a83d7bc74635cf5f7484cbbe113f7eddf3d743 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x134BC | 16620 bytes |
font_00_sfnt_off0000eb76.binca3f2cf5741d49887f4d960128ac4f4adcd5cbfa1f591474e23231b2d3c20ae7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB76 | 19228 bytes |
font_01_sfnt_off00011cab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CAB | 16792 bytes |
font_03_sfnt_off00014c32.bin31f400dbda2bd75e26339d1f58aa40dc32803624fda01bb83cae902d14f0eebb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C32 | 3324 bytes |
font_04_sfnt_off0001597e.bin2c8644441acde54021df813959e8de0135323018ef6940f9d771bfb081cf079b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1597E | 10632 bytes |
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