MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier strongly flagged this PDF as malicious, and the heuristic firings support the presence of a link farm. No scripts were extracted, but the overall structure suggests a malicious intent to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 5
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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://crewmak.ru/uplcv?utm_term=download+android+drivers+for+windows+xp PDF link annotation
- http://nissanotogovap.vn/uploads/images/files/65237175582.pdfIn PDF document text
- http://daltan.hu/userfiles/file/bugizawotenugobupanudo.pdfIn PDF document text
- https://cahayaapi1.com/contents/files/zuxukimedebo.pdfIn PDF document text
- http://hongshengfish.com/uploadfiles/2021091023383922448.pdfIn PDF document text
- http://dogomanhnghia.com/uploads/files/xafuselumedezafe.pdfIn PDF document text
- https://inunekocp.jp/mailmagazine/upload/files/kufasofafugugipowix.pdfIn PDF document text
- http://filippodelvita.com/demo/userfiles/file/paxesefatugobebo.pdfIn PDF document text
- https://gimenezricarte-deltabogados.com/ckfinder/userfiles/files/25517614618.pdfIn PDF document text
- http://elementyzlaczne.pl/media/file/sezutiwironaregu.pdfIn PDF document text
- https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/70079296994.pdfIn PDF document text
- http://stapper.de/sites/default/files/userfilesfile/93324859970.pdfIn PDF document text
- https://membermimpi.com/contents/files/vujadipo.pdfIn PDF document text
- http://self119.net/upload/userfiles/2021/09/files/210918001418.pdfIn PDF document text
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/6fc787147a58dd0d6891f04b70abba1f/86218916988.pdfIn PDF document text
- https://stiglic.sk/userfiles/file/15488527914.pdfIn PDF document text
- https://batdongsandothanh.vn/luutru/files/wonegidawo.pdfIn PDF document text
- http://pho32shabu.com/uploads/files/66443430978.pdfIn PDF document text
- http://budka39.ru/files/babusisulojelet.pdfIn PDF document text
- http://loscogliodifavignana.it/userfiles/files/dasejotogixerajane.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138330c717a4---ronoxofewonelanalibavilib.pdfIn PDF document text
- http://fuyu.010bi.com/ckfinder/userfiles/files/61637902236.pdfIn PDF document text
- http://capmar.eu/userfiles/file/82528790594.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/kcjp53q6voev082q22f7pec643/39828251057.pdfIn PDF document text
- http://ketphatthinh.vn/upload/files/jaforinofolafinuzowur.pdfIn PDF document text
- https://chiataiec.com/userfiles/Proj_Name/files/rifamimuve.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/9fef8b6cd5e0c4bb86199d70e34bcfce/203587653.pdfIn 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://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_off0000d76d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD76D | 16360 bytes |
SHA-256: 1939c6c7b3d7b65fb90d7008b3ef91b807fadd3d5380a5ea1a64cb6a4a61df0d |
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font_01_sfnt_off000101d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101D1 | 10648 bytes |
SHA-256: 8a04675226b6a16ab0fa1e03d83025bd9c3992aea7b2045862623aaf6ee2ba9e |
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font_02_sfnt_off00011a5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A5D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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