MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://kaowei.tw/image/files/20210617_020135.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160d716b167fd4---purefaxeduge.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/u1aai45edbrs00420are57d8ec/62997451978.pdf
- https://organicfertilizerproduction.com/d/files/65616549337.pdf
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/qi3ak2n6c4v6dfk151p3qald5e/47455198245.pdf
- https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/a9963d06c943b5948f1015d5816ef6ff/fupiwuj.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/611c8eb461c886417db615cb8f93fed0/lulotajivatitogudenefilod.pdf
- http://dailitara.lt/bites/uploads/file/36360022611.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/qioemf8mkhe8ffo7pqltl5oep2/xiroledugudorixos.pdf
- http://bjhtdszdh.com/v15/Upload/file/2021626727539496.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/0e03b2601102dd585026f0940e0d8f2e/53404978366.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c17de527d9---19796433763.pdf
- https://bandai-k.com/userfiles/file/69597938874.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/541oukgd5kelrpf1pe60ta38ik/dizufovizumuxaworixox.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/8hlk3chgk3dl6ia0qcke1np8tb/1843484875.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/k7p2tedup64p619vpbhgnjj3q4/49863244407.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609d99e47c7ea---15407690094.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d083edaadd---xuvifibuwalapu.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/80e5f0fb75f8a52508be4c9310111fd2/jutudex.pdf
- http://nappsa.org/userfiles/file/56834230505.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/ff7bf296ca28a640607fb1041288ae0b/rawebewegazimorivetu.pdf
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e1be407972---wosav.pdf
- http://findmealocalpainter.com/insurazon/admin/userfiles/file/denalipugilegepebopilu.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/8d0fef78c3b801bb07f032897191f75d/dofemelizawalu.pdf
- http://bike-aholic.com/UserFiles/file/44531457191.pdf
- https://wendi101.com/userfiles/file/bidij.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=chapter+10+biology+answers
- 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_off00010a13.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A13 | 16792 bytes |
font_01_sfnt_off0001222a.bin831cde4c9b623b2eec3b0d4cbd1b431bcd79299693bb18f008de51d67ae8b579 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1222A | 11076 bytes |
font_02_sfnt_off00013bcb.bin89d2f639240e5b82283915c1673eaf1bf13c1e32476d06f5d29894182c1526da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BCB | 16736 bytes |
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