MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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 https://inwebjor.ru/uplcv?utm_term=download+game+batman+the+dark+knight+rises+mod+apk PDF link annotation
- https://aedwea.com/upload/foto/78377645911.pdfIn PDF document text
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/d5373ec5d1ea3517e082c9994686fa66/73534736369.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160c02b59db597---78864180120.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/7c4bd9e807bdf2abfd0aceb8dd3b08e5/87149349360.pdfIn PDF document text
- http://happy-travel089.com/CKEdit/upload/files/50452367402.pdfIn PDF document text
- http://younewstoday.com/task/userimages/file/10888967259.pdfIn PDF document text
- https://pelicanfinancialnetwork.net/ckfinder/userfiles/files/84122729942.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/0561f018bab3b07fb9c67cb9d78b4546/lonononuvuxesivibaga.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e3283feb9076975fc56072f2237c7058/suvife.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/47e59f47304a9a72daf456ddf5d3f45e/wisije.pdfIn PDF document text
- http://beijingxinzhi.com/userfiles/file/20210510034843_94009436.pdfIn PDF document text
- https://study4student.com/cache/fck_files/file/zesijadexi.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce81ec9f67---73978143022.pdfIn PDF document text
- https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/160748a4ae6946---19261273921.pdfIn PDF document text
- http://barcabianca.eu/upload/file/pumovebuveti.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/5009869783.pdfIn PDF document text
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/otvbh0lvpsu7g5jfveid77cfh7/xovotazomedavam.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eafc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAFC | 5668 bytes |
SHA-256: de11210cc8e3efd7e2040659087946b4479834da81e3a5d4a7dd0418e105a977 |
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font_01_sfnt_off0000fe20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE20 | 5356 bytes |
SHA-256: 2b4856808ea95ea5e121668bfc35387aaff28fffe0b36e1fb8d779fb20942345 |
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font_02_sfnt_off000111aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111AA | 11908 bytes |
SHA-256: 20aa0dbe83ea99bc882401b4b84ae35ad2d40b5d6f1cce16942332d33c69cf9e |
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