MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous links, many pointing to compromised WordPress sites, which likely serve as a link farm to distribute malware. The presence of a URL with 'pubg mobile hack android download' suggests a lure for users seeking cheats or exploits, a common tactic for phishing and malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://krisoc.ru/uplcv?utm_term=pubg+mobile+hack+android+download
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/8de6e015e44411ae4593458369bbfd80/41527034683.pdf
- http://sevimticaret.net/userfiles/file/melomixobovoretamuw.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b46a6b9e24d---24626125552.pdf
- http://altinay-law.com/images/file/88574034505.pdf
- http://kaies.cn/upfiles/21060104485059848803nl6n.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/79e6a6ffc38307bb60d203d9604b525f/40608030527.pdf
- https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/14e5240e92cda7409c071faac6590454/52141542437.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607af14ae4593---70207797651.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160c19c4a35d80---wiwunalorebokad.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/rr5kslj8i4915tt0dsq27bnf15/ronofikewezugekekinur.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160947b3f2d052---tijijeliji.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/7c5ff99a8f7a9093f3bdd559195ddcfd/barabogumizuwejagisebo.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/gjjs7s3ai132rt539jnumo45q7/96602501780.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1c5f40ebc---53603457082.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075bf5df2ebf---dazitijivobonuzatojasu.pdf
- http://amadpich.com/userfiles/file/wamularavinasebukibof.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f3da.bin1f382ffc71cb5719372e91f35747bc2844f61580256c3744a4601270e8de01f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3DA | 5272 bytes |
font_01_sfnt_off00010591.binb7ac602ccd8b75ed585b36cdaa55f3cefbfaf8388dc58af432512804b695fff0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10591 | 12280 bytes |
font_02_sfnt_off00012b6f.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B6F | 4324 bytes |
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