MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by 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 6
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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://shipagents.nl/uploadfiles/file/31686452300.pdf In PDF document text
- https://computerzone.pk/file/52321566993.pdfIn PDF document text
- http://skiflogistics.ru/userfiles/file/24378744416.pdfIn PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/ca8443df6eee166ccc49d1dc204be925/95197867164.pdfIn PDF document text
- https://avgdesign.com/userfiles/file/51814784360.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/letusevifejiwidifubek.pdfIn PDF document text
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/mcd4jk9d6gfoa06csrv0upu1se/fibulonomuwofa.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16081407234b19---jonakodaped.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/0086a25eb30b92d5305357ee6473bf68/potawawewat.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3dce03a9a---fuxodixakuxitexesatojof.pdfIn PDF document text
- http://geoplan.su/userfiles/file/93226611284.pdfIn PDF document text
- http://greece-ex.com/images/blog//file/15445545477.pdfIn PDF document text
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/jj7o6pvpikucdfeevai2uh2mv0/50452993437.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160af6a90d21f3---90954536868.pdfIn PDF document text
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160712a0428531---rovagizi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=gta+5+apk+obb+download+for+pcPDF 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://scripts.sil.org/OFLIn 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_off0000e90b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE90B | 5420 bytes |
SHA-256: 18cab2073f15a6808dcf93905a2a5947e67d8226a362b8ed58f1c7eebd8a385b |
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font_01_sfnt_off0000fbaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBAA | 12460 bytes |
SHA-256: 5af56fa3164591cc75891bfa467e6c6d1600826db78ebe061d22b01412458cac |
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font_02_sfnt_off000123c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123C9 | 17036 bytes |
SHA-256: 22762130a771b0ac5698833ae90939c3bdde2640d64869b2de9b6925e93e02b3 |
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