MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that contains numerous links to external resources, many of which point to compromised WordPress sites. The heuristic PDF_RANDOM_URL_LINK and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM indicate that these links are likely intended to host and distribute malicious payloads. The ML classifier and ClamAV detection further support the malicious nature of this file, suggesting it's a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b43330718f9---gumuta.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160c401569b510---fozuvazazigewegoxapawin.pdf
- https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/90aba127b7f64192d1eff5d4fe73628c/2387916123.pdf
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160733250ef0e1---98815610857.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f13401c4ee---7619556034.pdf
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160870f8926ee0---35441430441.pdf
- http://twfbs.com/ckfinder/userfiles/files/pumowodozokakizode.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/9adutsi6vaa00ki10sk9oqcrb6/62262502005.pdf
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2d0d82541---tanazitawitezinavazavud.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b54b8880054---juxuvin.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/ca52c427240d42f6fd011a7700c3a983/98703750966.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f562667f1a---tifevu.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/1b0d6e6d5dd9d83a451f2be03965d053/23314677007.pdf
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/90813777669.pdf
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16073c28458ebb---tamixikikamizurobax.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/c7f02350893d7ab28b746dcb0606d460/ninapakukeperezegujaxe.pdf
- http://essiac.cz/UserFiles/file/zokolotevifevifepodifulas.pdf
- https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/f8edf9de26ac3fbd5f5a259a26fab0ac/ruxewupixereteto.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cda46a2b37b---54770504646.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/572aa54e0c150135c42c24910ada788b/paropiweke.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=connective+tissue+histology+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_off0000f6b2.bincad836fd5a93f9dacf8e02add91651bacdf52f6a1d5f3ea2584af556f7ddeb8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B2 | 10948 bytes |
font_01_sfnt_off00010fdf.bin465495a6327654dea6f0942d623cf7f496d89a0053f2fa8d8a15d2cc0da4ed95 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FDF | 16852 bytes |
font_02_sfnt_off00013bdf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BDF | 16792 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.