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 high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous external URIs pointing to potentially compromised WordPress sites and disposable hosting. These links likely serve as a lure to redirect users to phishing pages or download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9769
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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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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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://oniceh.ru/uplcv?utm_term=funny+terms+for+being+drunk
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc173bd7a96---94233031705.pdf
- https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/1548394b56bc422aaea10fa05ec731d1/xobagofisutod.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16072b41c8b071---33465120718.pdf
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c827e30e3b---vafowuwosunafapabujuvakig.pdf
- https://faceless.me/userfiles/files/63291464224.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/i4ovtfirpm65dcv9l69met46f4/1920149706.pdf
- https://dusunceokulu.net/resimler/files/23624954789.pdf
- https://lescourailleurs.com/upload/editor/file/9067890350.pdf
- http://camberwelltaxi.com/survey/userfiles/files/29822389073.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160e38e88dd47b---voselo.pdf
- http://rld-carbon.ru/file/11721437103.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609404ab0f347---55412937334.pdf
- https://efficimm.fr/userfiles/files/fozitulabig.pdf
- https://mzlpro.com/web/img/podborky/files/nefegimugejofitibelubiri.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c47fb273a1b---69658123200.pdf
- http://elitvorota.ru/f/file/53016862599.pdf
- http://flirdining.com/uploads/files/pokadozarepev.pdf
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/3155e7f007883b34058f5f376d4d36bf/82767706729.pdf
- https://hfdjet.com/wp-content/plugins/super-forms/uploads/php/files/a81f4ce4ffaba06577d63d399f5b56dd/nejisajutisufibef.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b747be9aef0---jikusinubenigisis.pdf
- https://seitonsolutions.com/ci/files/gikipa.pdf
- https://bisnismedsos.com/userfiles/file/77102862384.pdf
- https://stiff.pl/ckfinder/userfiles/files/wugudetodonazolisisapived.pdf
- http://157.230.241.115/image/upload/File/vawefiwiz.pdf
- http://sosnovgeo.ru/userfiles/file/65916582258.pdf
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/rkqq95660nuqfcnk425e2epsk2/79465958668.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac11a00c80a---tagavezovi.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5e3.bin707442cca6b54450249755de589ea3bdf15456b558afde3d06f16ba0939bc772 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5E3 | 17152 bytes |
font_01_sfnt_off00012297.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12297 | 16792 bytes |
font_02_sfnt_off00013aa8.bin5cd8a120e106fc2d4fc1855603a636a3ce922decfb1b4d98f17a4a5450337c58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AA8 | 16344 bytes |
font_03_sfnt_off000150a2.bin99aa45fd9e7fe2a7108998c615a759c4e8bc1eec2a48506286014fca4aa2de18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150A2 | 10912 bytes |
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