MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous URLs pointing to compromised CMS uploads and disposable hosting. This structure is indicative of a phishing or malware distribution campaign, aiming to lure users to malicious content. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://anhuizpyy.com/upload_fck/file/2021-6-20/20210620173339557142.pdf
- http://devison-matras.com/upload/file/77760964465.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d09be270c2---79921534231.pdf
- http://kientrucnhacuagio.com/upload/files/ravabusajuxaf.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607235cc1d7e2---nopizet.pdf
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/mjnp9hrpr6f5dbn28m0peasm86/tonosexorofofetadugaw.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/4de3390a6c23bc81d7e534fb24aef52e/zivapevatudigodazuxefovid.pdf
- https://traonguoc.vn/wp-content/plugins/super-forms/uploads/php/files/gojb2iueqga9mnjgaoqap90am8/vananejolujalumikezij.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8a9904bc7---zotuxefojopevugiruje.pdf
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074917c58583---tixarijilesazomodimuf.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bd197add7---77004621766.pdf
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609b081ff1bdf---dafusufuridorerejukimur.pdf
- http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/88464238103.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16082da652b286---83799080533.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/311eb2354859194a8512713f4b798289/sifexosibali.pdf
- http://amexeuro.com/an3_Uploads/file/fuduserevorepawu.pdf
- http://weberstellen.ch/userfiles/file/14081295081.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/28d0789fbe8ee19620c11a32958de6b1/16544275579.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/4b1f0b1d89712e7bde01f1f26fe4e5ce/76010050160.pdf
- http://travellightnepal.com/userfiles/file/litubixidisezat.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/118e333715f507585e992e4a195094d7/fokepegepivalibu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=lcm+of+12+28+36
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e7c6.binbfc7ce51a1a9b37382af61f0075eb0cdb972126da031002d338643432d80e6e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7C6 | 16252 bytes |
font_01_sfnt_off0000fda7.bin793f06e8b430138ca0984ccd7689764e7f77cda2b13bbe33643cd5fb7d09985d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDA7 | 10272 bytes |
font_02_sfnt_off000114e4.bin44f5285f7f511c70d60ac6189cbdf683af9c6cc8eed839db8523b09bdc5e034e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114E4 | 17128 bytes |
font_03_sfnt_off00014133.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14133 | 16792 bytes |
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