MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous other PDF files hosted on compromised websites. The presence of external URIs and link farm patterns suggests a phishing or malware distribution scheme, likely initiated via spearphishing. No scripts were extracted, but the overall structure points to a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9830
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/8bba7031881ad1df866f7e880fa50b2d/sikekepojowuxarokomam.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/e6q37iio16ddstuudgnbnft586/76545075114.pdf
- http://thermcom.cz/userfiles/file/nuratemugaxumuj.pdf
- http://adacu.org/userfiles/file/20210625180656.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088aac5261a9---59453199927.pdf
- http://faxik.online/ckfinder/userfiles/files/31743315500.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/3p7o09u8h0qn97urdj4detrck0/2414307035.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160700d4007cda---1462181481.pdf
- http://noxsun.com/jingkelun/userfiles/files/20210610175525.pdf
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/70a2cc9b632882b09e4f7d03918c9491/wazomijob.pdf
- http://memphiscentral1969.com/clients/865565/File/46814116719.pdf
- http://liveisagenix.com/ckfinder/userfiles/files/nuzutavi.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/9c4f33d63da06f9186e487966e4d611a/49615637668.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160837ed8763ae---tozukikisodufimofifoxow.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/3dc9b065ae34a0ff22534be89afacea1/giwowamukowavi.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/v5sqqb3ur4a9vhpd0lnffsh317/72414083463.pdf
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c453eb973---64391127341.pdf
- http://tksvolga.ru/userfiles/file/2806834930.pdf
- https://accuratesearch.com/userfiles/file/bifalorogifijaj.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3bc2930f01600c642530bb01ac10f58c/98879739205.pdf
- http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16088b4f564fcf---41082375042.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c7417c2fdf2516f461f58261f46b8f8c/pazawixupifemuzawoxujor.pdf
- http://casaatlantida.com/userfiles/file///67620433451.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=free+online+kjv+bible+with+apocrypha
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014dd5.bin9ebe1f432e018762f2d49cd7e317e3920db43bfbcbdda2fa92e15cc2ce2538bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DD5 | 10908 bytes |
font_01_sfnt_off000166c5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x166C5 | 16792 bytes |
font_02_sfnt_off00017ed3.bin81523119c99861c3fa63510bc0e350313d884cc5220e1042a2ced7082b176f43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17ED3 | 28088 bytes |
font_03_sfnt_off0001c98a.bin9af533e992dea7dcb92a2025e3f84b25ac26f555f6e4dd18d0d5f28df56a4f3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C98A | 21016 bytes |
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