MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term' parameters in some URLs further supports the idea of a campaign aimed at driving traffic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://crysiq.ru/uplcv?utm_term=videoshow+pro+apk+2021 PDF link annotation
- http://jongauger.com/ckfinder/userfiles/files/pufakunibumobon.pdfIn PDF document text
- http://balie.overeembv-profielen.nl/upload/files/72788610788.pdfIn PDF document text
- http://premiercontractinginc.com/files/file/jusotoketikaka.pdfIn PDF document text
- https://romalasergroup.com/userfiles/files/2962229747.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/a88e57fa97d67e946cca5c1f3ff6db32/gazivifatumejazon.pdfIn PDF document text
- http://ambvetfanini.eu/userfiles/files/luzadukut.pdfIn PDF document text
- http://www.prakashirrigation.com/uploads/fck/files/dezifiwenenexakirexamoz.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161368c80b0572---9269278488.pdfIn PDF document text
- http://csp.hu/editor_up/30835881233.pdfIn PDF document text
- http://hasdeu.md/data/userfiles/files/zogulapeberaxavekub.pdfIn PDF document text
- http://cachnhietcacham.vn/Images_upload/files/8019516442.pdfIn PDF document text
- https://siriusdynamics.com/assets/uploads/files/97106893298.pdfIn PDF document text
- http://ogledalata.bg/uploads/pages/files/9478631031.pdfIn PDF document text
- https://confeccionesruiz.cl/UserFiles/File/60771260864.pdfIn PDF document text
- https://bancodevida.com/bancodevida/admin/images/image/file/raxotetisulun.pdfIn PDF document text
- http://unsersohn.com/images/file/19756633453.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20210911185348.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151736436515---katuzatevexatesomegamabeg.pdfIn PDF document text
- http://leinerpakgelatine.com/survey/userfiles/files/fomipapewiton.pdfIn PDF document text
- http://bularz-auto.pl/images/userfiles/file/31271915470.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613f5aeacacd7---67559997584.pdfIn PDF document text
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c264.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC264 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA7B | 10680 bytes |
SHA-256: 73ce1469c9bad92515c6511344750b84ce4a9a84d64dd371e4788337831601ee |
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font_02_sfnt_off0000f339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF339 | 22700 bytes |
SHA-256: 01b64af0802718b1b6c598a071f4a424160d59b17f5bb841c3e5b75aa21373c8 |
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font_03_sfnt_off00012efb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EFB | 16540 bytes |
SHA-256: e8486dda68d8266c598e955260788762e21e39567fd64c38d8391f70685452e0 |
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