MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites. These links are likely used to redirect users to phishing pages or download further malware, consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9687
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://infrive.ru/uplcv?utm_term=another+word+for+tantamount
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aad14c52340---webetalodufi.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16076b4211c6bb---xomijewewono.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086c242de387---jogopabapex.pdf
- http://jnafarms.com/clients/864068/File/29305479040.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/45fe5b31f8706af2c92fbf23e4ea77ce/kenogikojoziwifujijusik.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/9bb8bf738998afdb6803c80fb5996e05/90447019183.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608154f5bcadc---51702896262.pdf
- https://brs.jo/userfiles/files/3927112162.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae6a3ad08a---radikutapowofopijimawagi.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/bff4010bb0716d11633266ddc2ea8fca/77785243834.pdf
- https://nasroglobal.com/userfiles/file/80856654276.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ab361d8c1df---66718706232.pdf
- https://fwullong.com/upfiles/editor/files/67089657772.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16096e5f1dff19---sinigulezato.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/2e5e8e8acbb6bb46046bc1e01014e57b/xinatikinaxugubififej.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/15d31f2d2529db0b0bdba60d8983dc02/lutaledamilu.pdf
- http://clingac.com/d/files/lumupetijozigovazuba.pdf
- https://ltssinternational.com/res/wysiwyg/file/xexugikodekeki.pdf
- http://allaboutdowney.com/userimages/wimanarizidesijun.pdf
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072a60b941d2---fidukulokixi.pdf
- http://birkhoffhi.com/userfiles/files/mifeteg.pdf
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b066ca152e6---semeputox.pdf
- http://martonaroniskola.net/userfiles/file/gebosodopab.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/59d302986ce31fb3cb17aba81dc40bb6/32647666326.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00014bf6.bin50e11a6fc307a065c4bc1acba5d333c0846ae465c2aedbb05d832fff7b3645dc |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x14BF6 | 18368 bytes |
font_00_sfnt_off0000f77a.bin3924f9490b57ce2a1a5f102f425151f02ec2c6afa2f81614fb08fab60fc83a6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77A | 10480 bytes |
font_01_sfnt_off00010f2c.bin4d34ffd3df2f5da7b9e80a307b019d70acd59422dac8a22e99d6220b61125781 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F2C | 25100 bytes |
font_03_sfnt_off000169f2.bin52e9294026e0b901663bb6db009b8dc8a378985a5eb55078831c2e68c8f3a43f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169F2 | 2892 bytes |
font_04_sfnt_off000175ef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x175EF | 16792 bytes |
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