MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a link farm pointing to multiple compromised WordPress sites and disposable domains, masquerading as a VPN download. The presence of external URIs and link farms suggests an attempt to redirect users to malicious content or download further stages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 https://drafthe.ru/uplcv?utm_term=download+1111+vpn+for+android
- http://kxnjl.com/userfiles/files/32291251699.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/60b9f790b081dd61c382f46507b2c114/zesefegalovovotojirutubux.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a94eb6d82d---bimifigosewevefasasitiv.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/099c96f33bb69850e294c7c0cb8d706c/19527335544.pdf
- https://walkandsmile.com/userfiles/file/wutegafajunozemanoka.pdf
- http://pokorny-podlahy.cz/UserFiles/File/5255952592.pdf
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/giodcsf6fmnl91kjoujuo7epb0/fonodeze.pdf
- http://utpcomp.ru/uploads/files/92524434827.pdf
- http://sl-light.ru/design/img/upload/file/44176110309.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b450714b0a9---5426539590.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b27949dda68---79619637179.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bee00b3765---86442923324.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8c28520b0---85570918428.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/l73i15ui89h2bkfo9vrhsnuvsl/kefiravinufodoboletuwod.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/bb7d51951d4ecffcfe923911a42906ca/vosefezamusexesasaxisa.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/ae848062cebbf3394ea8637534c572b8/65825237566.pdf
- https://vntdc.com/upload/fck/file/7562125111.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/1d6ebd5534982618a9229adda93feeb0/nepibugamepaseduni.pdf
- http://minerva-collection.net/files/files/34692770721.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093f3b047dde---jokabeveza.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1db9b951f2---zedusejisunigile.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00010a70.binc10beaeca0ba0d8062ec558e1037af7783a0a2ac721afc2b5f5a22d849412743 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x10A70 | 17684 bytes |
font_00_sfnt_off0000f4cf.binda79484a7f94e028a8871d907a282bdc2df095dfef79f7b1f2af1efeeab75da7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4CF | 16224 bytes |
font_02_sfnt_off0001392b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1392B | 16792 bytes |
font_03_sfnt_off00015138.bin478d64aad58a46c60a63c2bd6d05d9c39068b35528f549688063ac651822ff24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15138 | 1760 bytes |
font_04_sfnt_off00015994.bin9185cef700a05f5063108db2a4b776aef793aacf6dbd4a74473285a5df8c9788 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15994 | 10296 bytes |
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