MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term=download+media+creation+tool+windows+8.1' in one URL indicates a lure to trick users into downloading potentially harmful files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://queure.ru/uplcv?utm_term=download+media+creation+tool+windows+8.1
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/1019cjr8rdk7isb9rjno8k1fuu/zirevode.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609731a20c9fa---55759582803.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608bbf05664b2---xifuvuduvafi.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/2056fbef5e205fe334246bfd068d2eb9/piparipinidazonuvi.pdf
- https://marwaautorepair.com/nbloom/fckuploads/file/towubudigifogowu.pdf
- https://pnp-studio.com/fckeditorfiles/file/butumig.pdf
- https://avflash.nl/upload/files/30037586977.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e56aa3d8e---devokigaguxude.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/9eb570f827236c61c215381edf9bb6a1/zuvidugijow.pdf
- http://isystemlab.com/admin/ckfinder/userfiles/files/tusunonobozikite.pdf
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a25e2577791---30882978412.pdf
- http://progfin.pl/userfiles/file/dolirox.pdf
- http://ebslang.net/_UploadFile/Images/file/85259066927.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1610a17ed07b18---33293611929.pdf
- http://ettorebelfioreliutaio.it/userfiles/files/jabadewofopetopurome.pdf
- https://susta.vn/userfiles/file/wadawazimeri.pdf
- http://drthchowdary.net/userfiles/file/zupesemitufemazadilefe.pdf
- http://arohitourandtravels.com/userfiles/file/41753413379.pdf
- http://kerrya.com/ckfinder/userfiles/files/41125531593.pdf
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/6f0f6f43e8538042125e843a08e413f6/tiwaketefuxolidoku.pdf
- http://citra.cl/userfiles/file/tivifuramugefi.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/15028bvrni02mo59r9gba2l0q0/gudez.pdf
- https://qian-ho.com/upfiles/editor/files/tipozexobejaxisiwin.pdf
- https://accesoriosalmayor.com/images/userfiles/file/4206607916.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e474.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE474 | 16792 bytes |
font_01_sfnt_off0000fc8b.bin0731f2a6476c57afd6f616de2a6a13cd76d9caa055dad4f1879d60ac22ed736b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC8B | 10944 bytes |
font_02_sfnt_off000115ef.bina7f394a32131762890a9de71fed513e07d8ea37d5faab9091446e1cd1316fdae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115EF | 16964 bytes |
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