MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with multiple URLs pointing to compromised WordPress sites. These links likely serve as redirects to phishing or malware distribution sites, a common tactic for initial compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/350194cd21fc3f4d217e295a1722cf70/nefivajazupibegaji.pdf In PDF document text
- http://magendans.com/imagefiles/file/49271241364.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f942d25e5---mefuxafozanasogogukurewon.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a33edd15c---midarofowenulopu.pdfIn PDF document text
- http://aaaexpressheating.com/userfiles/file/giboze.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/gelek.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609b8a1eb63cd---zezuwapise.pdfIn PDF document text
- https://al-farh-iq.com/upload/userfiles/file/97752383099.pdfIn PDF document text
- http://backkwang.com/userData/board/file/reronifitajobedugakif.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b76c987c8f2---kakusov.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16076e083724a0---fagelofuduxazik.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1624298118.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/76646742950.pdfIn PDF document text
- https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/besinibupobilaso.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/qmc4d2mbgu1sbslhe2ob37d1p0/xovufitadajanurulu.pdfIn PDF document text
- http://stinpo.com/ckfinder/userfiles/files/92422583485.pdfIn PDF document text
- http://postelezmasivu-brno.com/ckfinder/userfiles/files/30151706884.pdfIn PDF document text
- https://sardavetri.it/userfiles/file/wiwoberuta.pdfIn PDF document text
- https://qnzar.com/files/74581922103.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=c+printf+special+charactersPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/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_off0000c2c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2C5 | 10488 bytes |
SHA-256: a0fe8724cf2605c0fe27e6d7d6e2620160d0f945b3e0c2abd21a13d555d3693c |
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font_01_sfnt_off0000da88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA88 | 17124 bytes |
SHA-256: 50e52fd0bcea137e924153a7bdb2bac66021d2abd5a4a775b4143201ab59f23a |
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font_02_sfnt_off00010660.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10660 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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