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. It contains numerous links to external sites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm used for phishing or malware distribution. The PDF structure and embedded URLs are consistent with a spearphishing attachment attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9897
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://kuresi-kaitori.com/upload/content_pic/files/nekubet.pdf In PDF document text
- https://anjingliar2.com/contents//files/supijejisixitigajusotofi.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/heu99ge8p1c2vsflusv15hmfr2/52612988899.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/9qopdlpl2pgvq5461sa4f0kcmq/navuri.pdfIn PDF document text
- https://ezastupitelstvo.sk/editor_uploads/system/files/56973361443.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/173130f4cfe13a7bca203aa8a3364b06/tutetilelutetage.pdfIn PDF document text
- http://tks-forever.com/upload/2021/08/08/file/62963958526.pdfIn PDF document text
- https://nergizleryapi.com/image/files/famufusekazukositexu.pdfIn PDF document text
- http://gifarlcm.com/upfiles/editor/files/99349665409.pdfIn PDF document text
- http://bazis-expertiza.ru/ckfinder/core/connector/php/files/kibisoboxemifesikuxidigu.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/ca8be75e015796568b6a89bf16311fef/xawojapipopagiba.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b342e6df6---kaxunesexukilo.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/68532766934.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/6cd5783a8d7c2f59d224d8ec1e14db14/konaxizavaxap.pdfIn PDF document text
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/f7e02fe1f0cc0400cf8d630cc174d2cb/90620609050.pdfIn PDF document text
- http://hrjok.com/uploadfile/file/89857109274.pdfIn PDF document text
- https://bikeid.net/ckfinder/userfiles/files/lenizizexabanunefofuxema.pdfIn PDF document text
- https://air-separation-supplier.com/d/files/90318586990.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bf86b754e1c---ruvavatajina.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087b481601c2---28867699988.pdfIn PDF document text
- http://tutek.eu/userfiles/file/pomomaxuninonolibelan.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/pchc6ucfbfikij5hj1bp14id74/butewigiza.pdfIn PDF document text
- http://kxqcgs.net/filespath/files/20210811180420.pdfIn PDF document text
- http://trevelci.ru/ckfinder/userfiles/files/65736391590.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/b0a159bea64e92c9182701022cabf4f6/safaluwefibuvemiv.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983bef7cdd1---pijufilose.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=potencia+de+base+dez+exercicios+resolvidos+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010f25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F25 | 10984 bytes |
SHA-256: d112dbf9b8aaa4ea2af9dc6eb82e3fbc085f44c8f1beed3e0695f6801306127c |
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font_01_sfnt_off000128a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128A3 | 20072 bytes |
SHA-256: a0f5f65df67a24fa69b452ba959872849516e3e0bd33e6f0e6d6702f5f03c0ba |
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font_02_sfnt_off000159d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159D6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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