MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The heuristic 'SE_CALLBACK_LURE' suggests the document is designed to trick the user into calling a fraudulent number, consistent with tech support scams or billing fraud. The presence of numerous external URLs, many hosted on compromised CMS platforms or disposable domains, further supports a phishing or scamming intent, likely involving the download of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 https://allytemp.ru/uplcv?utm_term=andy+murray+miami+open
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160752237c0f64---31320393234.pdf
- http://aggengr.com/uploads/CMS/file/fenojejekalavufepeso.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16075e0c8300ad---suzenijawisok.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f87ad76f0---fuxon.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa363419e75---56921057855.pdf
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/cf3faa69e8917464d323bae3099438c4/95191363693.pdf
- http://pngroup.pl/ckfinder/userfiles/files/kafugimunipixomex.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/us90amphcfkohi6sfuvlju3dp9/zevifiludewubajamubukeg.pdf
- http://www.specemc.ru/upload/files/fewopenopubelow.pdf
- http://villa-carlshorst.de/sites/default/files/file/ravepelemekilajedegejat.pdf
- https://hkbca.org/UploadFiles/file/20210603171738177.pdf
- http://vytvarnyobchod.cz/UserFiles/File/54429815036.pdf
- https://aspaeng.com/files/image/files/3087126398.pdf
- http://trendstyleimage.com/uploads/ckfinder/userfiles/files/43094497038.pdf
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/0d7b59662fc9c2103fb294d29d8817c4/verizijigaper.pdf
- https://locoffice.ru/userfiles/file/63509196162.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3b7922e304---sulolarewonax.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a0170b5e857---73136048488.pdf
- http://cocoal.com/uploads/file/degakubusuzusi.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16094574d50389---pixukefu.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087139acf2f3---65918514911.pdf
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a0226293e---69124032444.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fe02.bin162f0e3ad979db64680be0e7c3b3219b73d0dfd594f1e37013426ecb2998b34b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE02 | 10436 bytes |
font_01_sfnt_off00011599.bine880728e42ec62974f4b0e6dba9262634bfa16e50d1aeb2afcd4d6988799e0db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11599 | 18072 bytes |
font_02_sfnt_off0001457a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1457A | 16792 bytes |
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