MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further payloads. The presence of embedded JavaScript (T1059.007) is a common technique for exploiting PDF viewers.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://autovoda.ru/upload/files/gifopotadovozerejirupov.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/161334e488f7bb---dalutakix.pdf
- http://cesishotel.lv/res/wysiwyg/file/jisuma.pdf
- https://sealskinz.ru/files/file/2081110556.pdf
- http://z500.si/files/rorikuno.pdf
- http://igabana.com/upfolder/e/files/20210929050720.pdf
- http://clarksville.net/wysiwygfiles/file/91900788944.pdf
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/e64565d8a1c8958ac27b25d7578ca297/maxafaruvekukekejox.pdf
- http://www.bluewhaleline.com/image/upload/File/bovitu.pdf
- http://architettoletiziamasciotta.eu/userfiles/files/toneripegewuwimududefed.pdf
- http://nktrading.qa/file/files/sopugimikufikis.pdf
- http://xn--80aamwn.xn--p1ai/userfiles/file/kikofexevezomoditapu.pdf
- http://yusungchart.com/userData/board/file/petekuwusebokijulisojavu.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1614dd2594cce1---9493556729.pdf
- http://quimis.org/js/ckfinder/userfiles/files/75887521983.pdf
- https://adrfarysz.pl/userfiles/file/10635738236.pdf
- http://besteva.com/upload/files/tenagipogir.pdf
- http://chanakol.com/ckfinder/userfiles/files/31330333059.pdf
- http://sweatrinserepeat.com/ckfinder/userfiles/files/rupopukedejategidirurexu.pdf
- http://kwong-cheong.com/userfiles/dunatalomefosikekel.pdf
- http://box8websites.com/ckfinder/userfiles/files/99388136602.pdf
- http://wgadget.com/file_media/file_image/file/kirupobotonidijena.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1614bada667ff1---78819366372.pdf
- http://mebizstekla.ru/userfiles/file/soxiva.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+mirror+screen+from+phone+to+pc
- 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_off0000b2c4.bin44c75e120861ba5142da8e2f7d4f829630b3051d86dc84e1dddb6fad3673d2f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2C4 | 15792 bytes |
font_01_sfnt_off0000da93.bin837912c4f5c5b7833b975add0769dd5cdea4b0d243964d4030e8d949a575cc1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA93 | 10616 bytes |
font_02_sfnt_off0000f2a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2A6 | 16792 bytes |
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