MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript and numerous external URIs, many pointing to compromised WordPress installations or disposable hosting. The heuristic 'SE_CALLBACK_LURE' suggests a phishing or tech-support scam pretext. The embedded JavaScript likely facilitates the download and execution of a second-stage payload, as indicated by the 'PDF_JS' heuristic and the ML classifier's high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 9
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://crewmak.ru/uplcv?utm_term=there+as+in+place
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606fceec78349---ditebogemo.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/168d7228c1e14906f522a3fa31298888/lokun.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a300f9dc9e9---wamokeruw.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/b73090a87d1e87728294cccb46173a69/tifomekozuwatejafalodij.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/17e451d7bccac1e7ec0a2638ba523aad/55463762459.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160712cc497558---42583559223.pdf
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607acf6ee7fe4---94941742442.pdf
- http://forresterfamilyreunion.com/clients/c/cc/cc72bfd2512333311cc1ef5a4fdef90f/File/45799653957.pdf
- http://creativeindustries.ru/uploads/userfiles/file/94650516665.pdf
- http://tokyoto.pl/UserFiles/file/53344828009.pdf
- http://nensi.si/upload/file/14183146822.pdf
- http://ahkjt.com/upfile/file/fonazerigereja.pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7a66880da---17536772858.pdf
- https://dangeloremodeling.com/nbloom/fckuploads/file/80931777172.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872fc9986dc---vuzadetuxelijemidof.pdf
- http://127.0.0.1/bantraicay/js/ckfinder/userfiles/files/pemizijaripeg.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/5189eeb7c880caa376e1be15db92a27d/19165193640.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e707fa3973---somani.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/79239c66abf35f3b4d9202e4f1d1eeca/54268523078.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160838ae8de718---20660255684.pdf
- http://abc-tel.ru/data/File/niriseranivijovekajuxokuw.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e51fcdca15---direxevadubo.pdf
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16083f2eabf94b---movewugigogidava.pdf
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070fb3a4fb9d---42112550017.pdf
- https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1609621c5d3fa9---lumufopisute.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_off0000c840.bin3fd749a40caa21da29275efb02f8129aa76f36bdc9e549ea3c882de6bc2de6a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC840 | 10216 bytes |
font_01_sfnt_off0000df0c.bincc0d05367729c04e1f200b9a7b980d8111d2e20de8e7485b256c0783062d5f90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF0C | 17600 bytes |
font_02_sfnt_off00010d4b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D4B | 16792 bytes |
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