MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to various compromised CMS upload locations and disposable hosting sites, ultimately leading to a PDF payload. The presence of a callback lure suggests a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 8
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://giftboxvietthuy.com/upload/ck/files/mefonaguvatazara.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a13056aca---61927106873.pdf
- https://mldom.xyz/web/img/podborky/files/34093508314.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/67a811d537194d6a8f75cb13b89d4596/84099542031.pdf
- http://absolutelyneon.com/userfiles/file/lixij.pdf
- https://prana.video/wp-content/plugins/super-forms/uploads/php/files/01rd714j0ov4sbvbh6ibi6mroe/risemuxisozusuvafef.pdf
- http://ahsaipu.com/v15/Upload/file/202153234193107.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076890679962---85022163709.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16075a9d7a29a9---sapisefoduz.pdf
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/26d943748c0ed3499eb78b10099ea739/42574269151.pdf
- https://accuratesearch.com/userfiles/file/diwutawimufuta.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b54f71249a5---99708812859.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b755b8186fb---51154385895.pdf
- http://immobilieninvestors.de/userfiles/file/zewuzemerilivafi.pdf
- https://steklo-shik.ru/userfiles/file/69931857217.pdf
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/282e6bbe999ea1f98e0856d801f63558/nanolufujidej.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/e4ac38398a45f9a4b4928858445e90ae/veboxu.pdf
- http://rhondachem.com/d/files/nowafopoteniwinuvif.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd02463caa---83979104705.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609967f8b2a87---xapoluwo.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d96c91370a6---29706257148.pdf
- http://morecoredesign.com/images/imageUps/files/wosewujajoxasobosefag.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16076ab77be21d---saguguk.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=farris+and+thomas+law
- 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_off0000e49f.bin5b407469389df4660b401e4416899cb01d34d7b7a20f66def3bac343c317565f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE49F | 10444 bytes |
font_01_sfnt_off0000fc14.binfdc98237f7fde7e8e06073b4164e763f3f27b6cea90bcd8673d3c34c5fbde917 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC14 | 17328 bytes |
font_02_sfnt_off00012873.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12873 | 16792 bytes |
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