MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate it functions as a link farm, directing users to various external PDF files hosted on potentially compromised or disposable domains. The presence of a 'download button' lure suggests a phishing or social engineering tactic to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://catamma.ru/uplcv?utm_term=free+internet+vpn+apk+2020 PDF link annotation
- https://bengalroys.com/ckfinder/userfiles/files/zisorejetenus.pdfIn PDF document text
- https://dukra.sk/editor_uploads/files/68191807143.pdfIn PDF document text
- https://tidurmalam2.com/contents/files/getet.pdfIn PDF document text
- https://mashura.co/userfiles/files/kozasudigi.pdfIn PDF document text
- http://trustycctv.com/ckfinder/userfiles/files/47834204152.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/xipetanomivaxaraxevope.pdfIn PDF document text
- https://pchome.uzai.ca/upload/files/morumobasafozibuma.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/eb81d422b90444f6c0b801a3c1a82475/povori.pdfIn PDF document text
- http://bjjiffy.com/upload/27791302569.pdfIn PDF document text
- http://dnt-mayak.ru/content/File/8853675551.pdfIn PDF document text
- http://etasystem.net/userfiles/files/70967303002.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161322d5e41883---18546656571.pdfIn PDF document text
- https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613534f6c4a47---fadij.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613192fe049b2---jatijotetuxizunujegiwafuw.pdfIn PDF document text
- http://skolicka.eu/foto/images/file/texuz.pdfIn PDF document text
- http://abwingssuffolk2.com/uploads/files/82063727229.pdfIn PDF document text
- https://pelletier-tp.fr/ckfinder/userfiles/files/subekimajetokepubet.pdfIn PDF document text
- http://levne-pohary.cz/UserFiles/File/99696285684.pdfIn PDF document text
- http://huucodatlanh.com/userfiles/file/xijeruzesarumufume.pdfIn PDF document text
- http://naturalmis.com/userfiles/file/99482407057.pdfIn PDF document text
- https://ahirealty.in/admin/userfiles/files/sotoganenekiwemalokig.pdfIn PDF document text
- https://metrosecuritynepal.com/assets/userfiles/files/xuzefonu.pdfIn PDF document text
- http://vytvarnyobchod.cz/UserFiles/File/94933899367.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/q9fpcmgip8alk6c2pssj7plssc/bonugenawadimekemonutipax.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e462.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE462 | 10288 bytes |
SHA-256: da2e0e6227f80599f86a6611aa875b58cc8906425d95fcd9cc1985d822107099 |
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font_01_sfnt_off0000fbb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBB8 | 18856 bytes |
SHA-256: 13f5455716f155c3314e588e3b5e2f400c4181ee724d86a12ed4ee00a7467487 |
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font_02_sfnt_off00012d1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D1E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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