MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs that point to potentially compromised WordPress sites. These links likely serve to redirect users to malicious content or phishing pages, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609af26bec8b9---zuwatilajarirefufiba.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/t3de415irk71tucja4etbns5uk/74776960608.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a237ec8a51b---safabuxafet.pdf
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/ssqdeo37qfhq8qnam1ofla8mb4/kasigapilimow.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdd8076c35e---dasikivojuxulazepul.pdf
- http://cosmeticdermatologymiamibeach.com/uploads/data/files/18297453590.pdf
- http://www.buildonhope.org/file/52250482599.pdf
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0b22dc2c5---nubesagorakizizurugumizi.pdf
- http://novussiteyonetimi.com/uploads/file/waruvuzirebobifivu.pdf
- http://zenobiacultura.it/userfiles/file///63778270358.pdf
- http://baigeleather.com/userfiles/file/sofete.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc11a3d5c7---1607625714.pdf
- https://incoyun.com/calisma2/files/uploads/xevilakilatotenex.pdf
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/5362a3f9454568977f5a8bdce41135ca/dibowomajigiku.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/s2vima1a4vtldk9bionjrjjvm3/39681376050.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16122aaa4456c1---22428596164.pdf
- http://pxmonastery.org/CKEdit/upload/files/9195621612.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160892bf3a6806---23986009815.pdf
- http://duocthientam.com/uploads/ckfinder/files/wuzekoxelajagamisubok.pdf
- https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/15257116877.pdf
- https://accesoriosalmayor.com/images/userfiles/file/tiwedalejobejozakaf.pdf
- http://ruresept.ru/files/file/tetizivoboxufugakinoxajam.pdf
- https://vpntraffic.com/upload/files/satafopoke.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/jajedolurelaz.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/e185a3e991afed9979f3cd4f14d9b35e/39149948241.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=teaching+reading+skills+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_off0000c4e9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4E9 | 16792 bytes |
font_01_sfnt_off0000dcfb.binbee6bdc4cc1289bd92002dc5ba5771b4bb4661e4de5cb15d3417a00e1e686d4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCFB | 17132 bytes |
font_02_sfnt_off000107e6.binac2bc7a65e9a55f1de3a4d9715d1b8779ed5a6e07dbb90ed5b89ef5e00885fa1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107E6 | 10736 bytes |
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