MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised WordPress upload storage locations and other unknown domains. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f73728dad---pebekarenulunitakuxubeja.pdf
- http://fitviewer.biz/files/file/malavexemivevozupod.pdf
- http://kyanite.tv/userfiles/file/nepewezuruj.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1607904fb14692---89739006401.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c73cad4b82---bamudejor.pdf
- https://saunadlaciebie.pl/userfiles/file/wufudosegulon.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/l3rv76gqqtpm5ok0vtnna57nhs/basexozojiwu.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0201e7435---finiferupe.pdf
- https://telenovella-bg.com/files/bufirad.pdf
- http://asustainable.com/global/file/sitezodusemu.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9ee075769---rofuwifixumuwuv.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-6-17/20210617222448496231.pdf
- http://tuzvedo.hu/elemek/file/ritalomuvotamuloxekidezum.pdf
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/754f3eacf7ce4cde086a2da776727ec5/wokarimomudo.pdf
- http://winso.tw/userfiles/file/wowuxexuvozararenojesoga.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/b339e46d0654ec7182d17e3e4f6cb276/13528917578.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e14b5ba08---28408945364.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095cad567967---94623486716.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=what+is+vintage+style
- 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_off000115d0.binfd5a5bbe40db704313163c7ab4589546c1de8addcde12ccce629e02cd5ee6c06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115D0 | 10340 bytes |
font_01_sfnt_off00012d17.bin48c66dc5954e5d3681584de0a8378fab2f906170f4bf24ccfaf39b0b969c92cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D17 | 17528 bytes |
font_02_sfnt_off00015ac4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15AC4 | 16792 bytes |
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