MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also hosts a large number of external links, many pointing to compromised WordPress sites, indicating a potential phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/akks0lo4ll0pb7104lcn4o43cp/polipenewamuxa.pdf In PDF document text
- http://apsara.ru/userfiles/file/tisalozovifalabujeb.pdfIn PDF document text
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a206bf24e24---dakigovewaxeluxadun.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/e8271702164726c610bf0c5f299db7e8/49302909515.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160707efdd5c42---vokikotu.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/6s948320oab2h5p0vgbh33pusa/jafukizav.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160734a31a28cb---nopojefebojulodojekevesij.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce625c10fc---vuvuwunivojutenuvigati.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/b99abf18e7bbbad039b63bdb1e306f2e/laxununojudopejidakugasaz.pdfIn PDF document text
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/l48hu89fsr56vn70i77cnc4hr6/rabafigigafivikudulajoma.pdfIn PDF document text
- http://www.mediagrand.hu//data/editorfile/29010191307.pdfIn PDF document text
- http://vagtteam.dk/userfiles/Files/ruwutavo.pdfIn PDF document text
- http://sghscsjamarai.org/guruhargobind/userfiles/file/bamalenafoletu.pdfIn PDF document text
- https://gotoko.com/cmsv2/upload/files/pilelojiji.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607337f9b4e97---pekomamifekazaweb.pdfIn PDF document text
- http://stylowa-pss.pl/userfiles/file/jixusiwozukedoj.pdfIn PDF document text
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/bdef7e47da77a549dec2a8c23973af4b/65670818.pdfIn PDF document text
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/5e3ae4f1d04400d215008a2df85e44ee/merirupetapebevopoji.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/634d6e5ae5c96d6938af1ac2a42dd830/32150158800.pdfIn PDF document text
- http://taociren.com/upload/file/210722025413922501n4jg8i8xf6t1.pdfIn PDF document text
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/2b918f2728bf2f8fbfbc961d500460ee/98052431595.pdfIn PDF document text
- https://bankkartya.hu/js/ckfinder/userfiles/files/35025891140.pdfIn PDF document text
- http://zerosquareonline.com/file/nituvojes.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=where+is+the+thermal+fuse+located+on+a+whirlpool+gas+dryerPDF 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_off0000ea18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA18 | 11360 bytes |
SHA-256: 027dc700465b19bac4595504ef33d7a855311c879c4ce4514e9a8088abffeb51 |
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font_01_sfnt_off00010492.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10492 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ca4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CA4 | 17156 bytes |
SHA-256: d624b901a6ecec981331ef722abb81139a02d0526a0452777a95945393936741 |
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