MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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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://brenno-tojestto.pl/userfiles/file/7849862632.pdf
- https://aawyx.com/sites/default/imageuser/file/gakivisivujog.pdf
- http://eortak.com/img/fck_temp/file/12140042162.pdf
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/1f8f714d6affd38524691c448434cd8d/66496695535.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/55ccd0157dfc0563df6919d0a94ea5e4/66434011928.pdf
- https://consultingexpert.eu/fckeditor/userfiles/file/vovena.pdf
- http://thesprotia.gr/uploads/file/jelubuturisabododatoxemu.pdf
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/49da88bd66103bd87cef70a164deabfd/47864813649.pdf
- http://barudan.hk/UploadFile/file/20210529154213083.pdf
- http://salkim.com/userfiles/file/28264691674.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/325beb011c3046c73856617b7bcfebcd/11482716366.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/dcaf3594ef01331b1944da28bb88c43f/xalivexitax.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/a71sp893g1ps1frkr9q6lcnh51/katesubebanovipu.pdf
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/f6fe0b41ad9703107488bb5cfad0b255/68865439627.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b206b290815---43519577266.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/0d2902efb7ec1df0946c197d8a8f13dc/30754988500.pdf
- https://sitpchemcieszyn.pl/_sitpchem/file/joxonutarukogomabaxugirux.pdf
- http://whalesart.com/uploadfile/file///2021051515152190.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4de6a86788---xikoven.pdf
- http://aweibel.com/Photo/file/jusewapilixaxiji.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160d19b186f402---44527507975.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d40432320f7---96535792465.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=pearson%27s+product+moment+coefficient
- 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_off0000e363.bin4606d10cb13135432c6eaa4a26e025c9e5d30983d298db46224f22f062d7bc39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE363 | 10872 bytes |
font_01_sfnt_off0000fc8a.binb66c56fa6e6abce14daa80b5d96c63c104d24391d417d9192703035a343653e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC8A | 17928 bytes |
font_02_sfnt_off00012c12.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C12 | 16792 bytes |
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