MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many URLs pointing to compromised WordPress upload directories. The document body, though heavily obfuscated, contains references to 'sheet music' and 'wkhtmltopdf', suggesting a lure document that redirects to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
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 http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef5bd957bf---18067480561.pdf
- https://angelsstaff.com/uploads/file/fininenipumozip.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607e456822ceb---losewojuduripulikuv.pdf
- https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/4eb1101b4645174018aec4445032108b/lemesudajogikotu.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/9d1abcf66868ffedf6544b5cbdc6b62d/46251365373.pdf
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/o0r6mg4aookugipeiiiua4k7mb/livitirekudel.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608d95ee765f3---93113246350.pdf
- http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16080fed4a8dd9---kuwizipawenoxewufu.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/dc33ecfb73b7b14a0677800bce6da331/81973955279.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc75ccdeee---99230373629.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b96cf59456---67552424534.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160818b985e68a---koxogoduruwek.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/636841bb0de0057113026ebecdff22ab/80402142974.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16087d9d28b731---govagan.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=lullaby+for+a+stormy+night+sheet+music
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cd74.binf1fd8906fbdadb4a66fe96d6a4e6d8d1e0a32247fe62fb6911d0d4afed68af62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD74 | 5360 bytes |
font_01_sfnt_off0000df88.bin9762fd530e9d6324a19c311dc59d8bcd298da6a853912a82eee4482b02ea952a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF88 | 10208 bytes |
font_02_sfnt_off0001022c.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1022C | 4324 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.