MALICIOUS
176
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 phishing or trojan threat. The heuristic 'SE_CALLBACK_LURE' suggests the document is designed to trick the user into calling a phone number, consistent with callback phishing or tech-support scams. While no scripts were directly extracted, the presence of numerous external URLs, some hosted on compromised CMS platforms, points to a likely attempt to redirect the user to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 https://garglob.ru/uplcv?utm_term=the+very+hungry+caterpillar+french+pdf
- http://tid.vn/upload/files/2916417211.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/34080852684057c3120885ddbacaccdc/9300600156.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b22ed8ba112---19505859082.pdf
- https://mingyi-lock.com/data/file/userfiles/files/28727684387.pdf
- http://shs67classreunion.com/clients/b/bf/bf9552935413f2527bbee995f2dfc9b5/File/66230622907.pdf
- http://rasciindia.com/firetech/ckupload/files/pavegidat.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c6da036c7---10703912526.pdf
- http://fc-junajted.com/upload/datoteke/37344674477.pdf
- https://abouelhoulgroup.com/userfiles/files/63834713713.pdf
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/h82eeovlpjg8bm2homottqq251/nawubibazojipitugiga.pdf
- http://pes.edu.mn/ckfinder/userfiles/files/nenifugudobil.pdf
- http://marjoleintje.nl/include/userfiles/witixun.pdf
- https://elpollopaulino.com/cenavarra_userfiles/files/93320649012.pdf
- https://satuldelut.ro/ckfinder/userfiles/files/45083529097.pdf
- http://cristalensi.com/public/File/71407353640.pdf
- http://turagent007.ru/userfiles/file/99669394251.pdf
- http://sugarfree-gelato.com/upload/file/19947923762.pdf
- https://echipamente-scule.ro/userfiles/file/gazidareboxedumumaxipuna.pdf
- http://ptairsupply.com/userfiles/file/60105427227.pdf
- http://simonkuehner.de/gfx/userfiles/files/13208495064.pdf
- https://giorgiosantinelli.it/file/puniti.pdf
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/a2d9ce27fed681e012a34fed2655729e/22077597845.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/16079a40cf2bcb---nonajogif.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_off0000c189.bind8fa806726827b3f390a46b3e602fcb3db76ce84e6ab1c57fd697ff0f4b4ccaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC189 | 16560 bytes |
font_01_sfnt_off0000ec64.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC64 | 16792 bytes |
font_02_sfnt_off0001047b.bin48ff79d7644b41846afcbfd0d06bddc31eba76c3d390fc425354dcdca94727c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1047B | 10852 bytes |
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