MALICIOUS
204
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 document contains numerous links pointing to compromised WordPress upload directories, suggesting it is part of a link farm designed to distribute malware. The presence of a 'LOLBin run command' heuristic further supports the execution of malicious code. While no scripts were explicitly extracted, the overall structure and heuristics point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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 http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f6e8d4bd5eb---xiwovosidizevuxidozalesoj.pdf In PDF document text
- https://hospvetcentral.pt/site/upload/file/45963696184.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1587ab9a5---vajibenek.pdfIn PDF document text
- http://shreyaghoshal.com/konadnew/userfiles/file/47817214756.pdfIn PDF document text
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/8mlb5gdah10rci9u8kbjh82t8b/jesevamosufurovur.pdfIn PDF document text
- https://sanruouvang.net/images/uploaded/file/jepinebaxusebadowaras.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/1c27b782cd87e1044c462aad83773d5b/43285843887.pdfIn PDF document text
- http://xpressup.com/userfiles/file/35385480230.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/n3266pvfhqe7hst3me28n9hqnm/19594753640.pdfIn PDF document text
- http://chinalabware.net/d/files/selozefejobawox.pdfIn PDF document text
- https://98ing.com/upload/ck/files/20210723_084235.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608db7d41c369---23169010662.pdfIn PDF document text
- http://kokalietudarbnica.lv/files/files/mezabibukufaril.pdfIn PDF document text
- https://doktor-ara.com/userfiles/files/2275816250.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/476437bae5caa7e7343c9de50809d95e/lomagasaveto.pdfIn PDF document text
- http://azseal.net/uploads/userfiles/file/53602035552.pdfIn PDF document text
- https://chameleoncoupons.com/adgprocessing/uploads/files/14891075742.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/f005d8b6daa32d602d4c974627a7c9ba/48487226696.pdfIn PDF document text
- https://gberwanda.com/gbe/useruploads/blogs/files/37301898425.pdfIn PDF document text
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/149c163a82c44e8561724bc11cbc4474/kewed.pdfIn PDF document text
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/bpocmdppnqmsimb22i0lsueg81/bezekulofopotuzolo.pdfIn PDF document text
- http://aeronautike.com/userfiles/file/makurawoputavisabow.pdfIn PDF document text
- http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1a748d119---8605992829.pdfIn PDF document text
- https://bikeid.net/ckfinder/userfiles/files/75459095564.pdfIn PDF document text
- http://misspacificus.com/clients/873634/File/xunagonazonog.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/1eccb1252493b066ab8c3550b0507933/64485591009.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=sample+resume+for+teachers+freshers+pdfPDF 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_off0000e07b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE07B | 10864 bytes |
SHA-256: bd559def5488760068f27a2b5688ad6c0e4946c2c0a16a2acaf576515310badf |
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font_01_sfnt_off0000f98f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF98F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000111a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A1 | 17576 bytes |
SHA-256: 8ec5bb7eef6f079844440a87082d01b66f612d3db9ee80d19afe8dc272677295 |
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