MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or tech-support scam. The document body is heavily obfuscated, but heuristics indicate it functions as a link farm, directing users to various compromised WordPress upload storage locations. The 'SE_CALLBACK_LURE' heuristic suggests the document's intent is to trick the user into calling a phone number, likely for fraudulent purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://stylekd.ru/files/lejetudojekum.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a73b4a0269c---98254853664.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/68d795cbd4de359fb8e5c4be65d7d975/81909804055.pdf
- http://anhuizpyy.com/upload_fck/file/2021-5-6/20210506032910297319.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607a93bfc4937---8249458699.pdf
- http://emilygrilltogo.com/uploads/files/tomaviko.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081accbad445---nekojizijokexexosisuvi.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b15ee90abfd---98934487111.pdf
- http://kubabus.cz/novy-web/upload/file/48316020734.pdf
- http://chinalabware.es/d/files/60756412082.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/46d07abb4d26a55d1c565a29e94996d3/xogujofagedakagote.pdf
- http://www.lebedosapartotel.com/data/yukle/files/77118071107.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088ae0d3d6d6---91400081022.pdf
- http://rund.cz/UserFiles/File/76363219262.pdf
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/e2aea063c5b0c4294d3b1255e0130bc2/ketixomiwojezajitabaj.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a710f01a1ef---97165546274.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160852fbfce517---segopaledowofuvomo.pdf
- http://iacsglobal.iacsinfo.org/content/uploads/files/tidobijutajenizi.pdf
- http://studiotecnicomancini.eu/userfiles/files/68557568977.pdf
- http://bsp-oblspl.org/ckfinder/userfiles/files/11699253407.pdf
- http://barudan.hk/UploadFile/file/20210814011528280.pdf
- https://die-elke.de/cms/elke_page_files/file/nokojido.pdf
- https://sukaunited4d.vip/contents//files/78147671125.pdf
- https://hanakspotrebice.cz/eshop/ckfinder/userfiles/files/sefunavisutajaru.pdf
- http://csc-021.com/userfiles/file/20210803074903_1egyyg.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=swivel+sweeper+max+manual
- 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_off0000e1ff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1FF | 16792 bytes |
font_01_sfnt_off0000fa11.bin86946480b2fa97d3465fda2ca12714e1d4d78aff6554cf122ff4a2c391acaa46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA11 | 18780 bytes |
font_02_sfnt_off00012b94.binb6e1c1ceac55a3154b564bb635100f974db80925f8a0837063f0a912689c83fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B94 | 10624 bytes |
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