MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a link farm hosted on multiple compromised websites, designed to lure users into downloading further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. No scripts were extracted, but the presence of numerous links to potentially malicious PDFs on compromised CMS uploads suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9e1a98beb---87100460389.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c48c6784237---86017913399.pdf
- http://solarexperten.ch/fckeditor/editor/images/file/39212054889.pdf
- http://alimentosldm.com/userfiles/file/17777302028.pdf
- http://teplospectr.ru/images/files/39535776618.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/csfjdrn1rf7c5crs7fopnrnu1s/6733683577.pdf
- https://edu-mate.kr/_UploadFile/Images/file/tozavofebo.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c52b117701c---33213628865.pdf
- http://btc-ltd.com/upload/file/bunokolepuzubew.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/d0ithdklki54btujjqajcf6nr2/86184461905.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160954ff65b228---kiluku.pdf
- http://toonesk.com/upload/17670159059.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8d7e88a04---68922686834.pdf
- http://whitebearlakeclassof1970.com/clients/0/05/05755deafc47004aae723e515cf08a6f/File/27463050188.pdf
- https://drticket.ir/basefile/drtiketcom/files/jukal.pdf
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/b68da627c1882571561447e731081024/lomodufexovupemudevidom.pdf
- https://dimensioninteractive.com/WYSIWYGImage/file/fajotifuxejotesorawa.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c665ee7de0e---fizab.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/1st6sivhj19j6nhp2irns0nm20/zuxusago.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b33e1c9a5---riposoritotakizuz.pdf
- https://groupunsur1.com/contents//files/ponikagawipaxob.pdf
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wixugafoluvebemakune.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c264781744---42282587909.pdf
- http://daehwa.info/uploaded/file/9017449346.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=subway+surfers+hack+apk+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dd8f.binaaa0bc5718fc076c057a0b9cc9d379424bb2d0d5c7a7fad17d5e523a2efb4ac3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD8F | 11180 bytes |
font_01_sfnt_off0000f77b.bin3c886cc4b70d68ca9e0b58a6657e37af32412df15e185cc4a824d4dd6a153171 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77B | 16712 bytes |
font_02_sfnt_off00012312.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12312 | 16792 bytes |
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