MALICIOUS
216
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 heuristics reveal it functions as a link farm, directing users to various compromised WordPress sites, likely to download further malicious content. The presence of a 'Password-protected archive handoff' heuristic suggests a common tactic to bypass gateway security by encrypting the payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eeeffa1a98---86972156272.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f7d5d2a4402---82395288516.pdf
- http://daedukgs.com/admin/fckeditor/data/file/20210704005303.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/02375g44tsmjcqhon8ns3keoh8/96700157262.pdf
- https://k-newsletter.com/ckupload/files/6746186861.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/b6cjm3cs7up7rub9r5aq1fdp2m/52632191014.pdf
- http://ikra-ekb.ru/files/fckeditor/file/93226669120.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/3d4176f2ca435153355b6df1e6a84bb4/jukizalazonekufu.pdf
- http://arniestribu.com/campannas/file/potivusezobax.pdf
- http://haumeaonline.com/userfiles/file/beraremupel.pdf
- http://musiconthebay.org/clients/2/26/269dd5bc96e197da989a8dccc71442af/File/jokusop.pdf
- http://www.proyecpapel.es/ckfinder/userfiles/files/71865885908.pdf
- https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/5be62016bb3bf967f8e69841330ec9c2/pexaxonovufilave.pdf
- http://atenngo.com/admin/sites/site/documents/3653088358.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/f9043df43c7733e82f382912d947d941/xunatelamoxomijababazule.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/vemr418ckk68v87btphq89f296/xiginizofoxelojituxit.pdf
- http://matkinhantai.com/luutru/files/52699985206.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093aac5846b6---xalabisusoxavatopunanoda.pdf
- http://anupbolivia.com/images/files/kajipipazim.pdf
- http://ghettaetamionarchitetti.it/userfiles/files/rubavexakake.pdf
- https://dakhoathienhoa.net/images/files/4664748351.pdf
- https://makanbanyak.net/contents//files/94863656571.pdf
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/7d500555255edb723192dfc9aa7ebd26/57398307386.pdf
- https://aznamaste.com/ckfinder/userfiles/files/17138852625.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=think+and+grow+rich+pdf+spanish
- 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_off0000e541.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE541 | 16792 bytes |
font_01_sfnt_off0000fd53.bin46df2957814c7ec2d8df8e77d27bf4ff0e25e9f8b71edb943f670f7c48349896 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD53 | 18020 bytes |
font_02_sfnt_off00012bb0.bin017290b9c6e7360c91fa28aba14535c00ca72bad048fd61e7dc9564a99024f04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BB0 | 10764 bytes |
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