MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a link farm pointing to compromised WordPress sites, likely serving as a lure to download a malicious application, as suggested by the 'fallout shelter online apk' UTM parameter. The presence of multiple links on disposable hosting and compromised CMS uploads further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://archism.ru/uplcv?utm_term=fallout+shelter+online+apk PDF link annotation
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/l5669sdatvo5307rs2ueinp8p6/47278571920.pdfIn PDF document text
- http://vejwun.cz/images/59107737650.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160947c68470df---dotaperulipikumud.pdfIn PDF document text
- http://deauville.ru/files/file/revosobaku.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4309d7a85---72387408925.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/verugudototironedujotub.pdfIn PDF document text
- http://mdc.ir/ckfinder/userfiles/files/22196216762.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d2627cf1e---18851249247.pdfIn PDF document text
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606e461337d08---69239363422.pdfIn PDF document text
- http://adria-ex.com/images/blog//file/rapizi.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/664c3aaa6734c21eb68812be7f1c61aa/40590869577.pdfIn PDF document text
- https://agermag.ro/mm/file/55517875700.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/zemowigumotasunide.pdfIn PDF document text
- http://bitite.lv/media/txt/122/file/wekekif.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e789.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE789 | 3092 bytes |
SHA-256: 6a72040639fcd71050e80943e22e68bbff7cf4eeba596c9ca71b5b76e9bcab80 |
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font_01_sfnt_off0000f283.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF283 | 4924 bytes |
SHA-256: 9e80f81b8d669c0b3eefdf04dc0e25e1810227e7d5c7d69fb92a961274effdf8 |
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font_02_sfnt_off0001033d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1033D | 22504 bytes |
SHA-256: ffb1c2435add8cabd9c74a4c173975e10f2065e2a72f4d8b992cec4d12a1f4a9 |
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font_03_sfnt_off00013399.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13399 | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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