MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these link farms and the overall detection as a phishing trojan strongly suggest an attack pattern aimed at user deception and potential malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 http://sitoad.com/bbqjoekey/files/202109060845317951.pdf In PDF document text
- http://cuacuonnhaxuongbinhduong.com/upload/files/46826279370.pdfIn PDF document text
- https://www.cascatai.com.br/ckfinder/userfiles/files/37218761390.pdfIn PDF document text
- http://phunphu.com/userfiles/file/wosof.pdfIn PDF document text
- http://ahjygjg.com/upload_fck/file/2021-9-2/20210902010907936386.pdfIn PDF document text
- http://kayapaliinsaat.net/file/wupidolonuje.pdfIn PDF document text
- https://chsins.tw/uploads/files/202109030456326090.pdfIn PDF document text
- http://babyshelter.net/assets/upload/files/bufumebezuxojokenemonep.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16132cfdd27e12---rovux.pdfIn PDF document text
- http://trieuduong.com/images/Download/50972071314.pdfIn PDF document text
- http://sunwisechem.com/Uploadfiles/files/51903799503.pdfIn PDF document text
- http://fullerton.kopanramen.com/uploads/files/65220333345.pdfIn PDF document text
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/ae3c75cb086557d685db1e8e3fa8f17b/10532804244.pdfIn PDF document text
- http://app0.linkeo.it/ckfinder/userfiles/files/kapijutiwojosunuzorexezep.pdfIn PDF document text
- http://fu-xin.tw/uploads/files/202109050651201707.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/70020543127.pdfIn PDF document text
- http://innotack.com/userfiles/file/jopotuli.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/abb51fc087f7b9782a87d4fc23837eba/takajabobaxifebewukenapuk.pdfIn PDF document text
- https://gemicilojistik.com/userfiles/upload/file/rikafafasaz.pdfIn PDF document text
- http://relaxzenter.com/uploads/files/dexedikolorir.pdfIn PDF document text
- http://mutitar.com/user_img/files/1334649403.pdfIn PDF document text
- https://weboonline.com/ckfinder/userfiles/files/37477453904.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=huawei+ascend+g600+android+updatePDF 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_off0000dbbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBBD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f3d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D4 | 11108 bytes |
SHA-256: a4ed1b8b59ac437afd8bd675842fdefa422076b98bdb59595d765002a4a7c63b |
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font_02_sfnt_off00010da3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DA3 | 17540 bytes |
SHA-256: c3377b62584c8e9ff3c8f3f5e33320cbe901afa8d8a39b20d32f811f87a180ea |
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