MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ClamAV and an ML classifier. It contains a link farm with numerous URLs pointing to compromised CMS upload directories, suggesting an attempt to redirect users to malicious content. The presence of multiple external URIs and a link farm on disposable hosting indicates a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 http://muszempilla.com/files/file/joxuropu.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/af5b53b47cbb7d710a56329587c4e4f8/pitutonifurebe.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609844ae6fd09---ximejajuwezojabejuwavipo.pdf
- http://china-hold.com/UploadFile/file/20210604091828425.pdf
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/523cc6cade7de252ecd889bc2cf78790/12869856324.pdf
- https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/c2f196c9cffdca1effa17c6db3786211/65138656591.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/857f5182131e5df558f35098513487f3/wuliwarijijisozixasan.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a5b176d08---20530729056.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be3e7c9f1f1---vaxufarimaw.pdf
- http://gramercy-grand.ru/files/file/teguwaledax.pdf
- http://azizolace.cz/images/file/9155250550.pdf
- https://powermailer.in/userfiles/file/motuwovopetefefadugumode.pdf
- http://canphantich.net/Images_upload/files/91269986860.pdf
- http://reguitti-engineering.it/userfiles/files/31563946361.pdf
- http://alpha-th.com/userfiles/file/77160635415.pdf
- http://erpsamik.com/ckfinder/userfiles/files/rigojapisofurasitu.pdf
- http://htwy.com/upload/file/49877853669.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/pgjkls8cdltklaqf6rbnohbdkl/36714313138.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16083621a66e11---tosugotisobewukikokaxi.pdf
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/5j4mf3gv8g96h72ht78uejvnv1/fudakubasaretaten.pdf
- http://www.ecvbrass.ch/user/web/file/jivixus.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/o8lka23c5850j0hlrtj8fs2fei/98060322575.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=dell+poweredge+2970+manual
- 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_off0000c138.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC138 | 16792 bytes |
font_01_sfnt_off0000d94a.bin652a2e2bd0060e1cd007787612971b5441d64f3cc26516dde86103603e02dff2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD94A | 16880 bytes |
font_02_sfnt_off00010556.bin02abb07177824c5165b1df9c6a4451359b789968ad14267ebc0ec6b45a11e7a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10556 | 11024 bytes |
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