MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of multiple external URLs, some hosted on compromised CMS uploads and others part of a link farm, suggests an attempt to redirect users to malicious sites or download further payloads. The 'SE_DOWNLOAD_BUTTON' heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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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 https://crewmak.ru/uplcv?utm_term=pubg+mobile+lite+android+unlimited+money
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/e89768f934ea22e07cf29dce72d86033/80411012846.pdf
- http://gloucesterclassof81.com/clients/23558/File/23073595270.pdf
- http://gardnersunited.com/clients/e/eb/eb3320446930dd457027df34457c622b/File/janukerata.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/3fgu64b86acghk7fr3pdpjd758/jesoviko.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608357f830d43---40307556484.pdf
- http://musorcentrum.hu/files/article/file/78058305323.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/20bb8b5895eeff5dd3bf7fc0d3fe24e4/tanakojenivowasifen.pdf
- http://agendaalzheimer.org/files/galeria/files/33628885500.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2eb483e8c6---19028484527.pdf
- https://mavibusiness.it/file/vuzibavenoxufifabepa.pdf
- http://vds-construct.pl/userfiles/file/wabefubevedepaxovoweke.pdf
- https://norservis.com/files/files/4829718927.pdf
- http://architects-desk.com/uploadsfile/pelanobotowewubusivekipe.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac7a096269d---72467851231.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/9p60ejid50mrptrrcd8co45j26/terunasujobixadiz.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/n2nur6ffm91ld477sqrs39dr5v/wamakawanuzajukexane.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16094d70b818d6---pusixevuwuxuvebojedejonur.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c75e153f8---zaxaruja.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609a45f98c683---rujaxemomigawopewitud.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/nl72etju4tbl20lb92p9b190q6/76725270201.pdf
- http://entryexpress.online/chapter_images/files/9801832925.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eba4.bin65eaa33cd9994e8885e0a14d6d096845e5e0d3f0d0f9f04c08303b6129b54ccc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA4 | 17496 bytes |
font_01_sfnt_off000119c1.bin72b6d5534888ecec27fd68dccf88827b5fbc3510db23809d90398b76a33fedee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C1 | 16304 bytes |
font_02_sfnt_off00012fb5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FB5 | 16792 bytes |
font_03_sfnt_off000147cc.bin0326eabeaf8204c7940d23c3a361902069206b84389dcf4bbb4bb60f09ee4a01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147CC | 10776 bytes |
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