MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is classified as malicious by ML models and ClamAV, indicating a phishing or trojan threat. It contains numerous URLs pointing to compromised websites, likely serving as a link farm to distribute malicious content disguised as a free pharmacology textbook download. The presence of external URIs and compromised CMS upload links suggests an attempt to redirect users to malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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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://huntic.ru/uplcv?utm_term=pretest+pharmacology+14th+edition+pdf+free+download PDF link annotation
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1606d17fb4a3c1---81478082278.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16093397482716---xaxemenuxodokedatomoxaw.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a9ojnbbqg000bqj0rnj9jopgd0/47232167536.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/biwakofopawuxedegizi.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/d8581554f6339773f7cb190c652d5d99/zixabakofijezopupijive.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608718a0e89f1---sovenet.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d42726ae24---madixonudopexemid.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/4fb6b8107030ca28d6a9190b1b64d772/74468198714.pdfIn PDF document text
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/440ed3ab05cf20f85d7af6d1e3256235/19387013657.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/a796e3e298c79b0ddfd011fdcd48f1e5/62305345580.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/e7e12754233155b0ddcd17e07892f23b/zesisaxinunorosipinoga.pdfIn PDF document text
- http://mosvag.ru/img/lib/file/30485760452.pdfIn PDF document text
- http://signexpowholesale.com/project-new/christianbook/upload_images/file/ponux.pdfIn PDF document text
- https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/6caa675b902456458bf4d0bc4555022d/vekuzuvutovuwilu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d2f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2F4 | 5692 bytes |
SHA-256: 79c866063b6b088ea3517f38696bd1a77be086480a8e7f8efa3a570d554be421 |
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font_01_sfnt_off0000e642.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE642 | 10660 bytes |
SHA-256: 43ab04f68c3b7beba1ab3144bec41b829abe6c6c6f597651a2ce0c80bfc5bcf8 |
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font_02_sfnt_off00010ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC5 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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