MALICIOUS
224
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document containing a large number of external links, many pointing to disposable domains and potentially malicious redirectors. The ML classifier strongly indicated maliciousness, and the PDF structure suggests it's designed to host a link farm. The presence of a URL like 'https://ggtraff.ru/strik?keyword=base64+decode+pdf+python' within the document body indicates a potential attempt to lure users into decoding content, possibly to reveal further malicious payloads or obfuscated information.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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://ggtraff.ru/strik?keyword=base64+decode+pdf+python In PDF document text
- http://suguz.weekeepcompany.com/uploads/1/3/1/1/131163601/kufinadanu.pdfIn PDF document text
- http://files.wwccoc.org/uploads/1/3/1/0/131069819/kutapu.pdfIn PDF document text
- http://xituwuk.rachelborgman.net/uploads/1/3/1/4/131453134/vugesaradujerez_ruvobanekek.pdfIn PDF document text
- http://labajuw.mindyourbodyfitnessandnutrition.com/uploads/1/3/0/7/130775940/6038090.pdfIn PDF document text
- http://nikoduju.rcfenceanddecks.ca/uploads/1/3/2/6/132681352/dusub-saduxi-letakapekob-jeberufesonu.pdfIn PDF document text
- http://ziposela.californiamobilenotaryriverside.com/uploads/1/3/0/7/130776074/zotitusovodebokipaw.pdfIn PDF document text
- http://files.floydslighthouse.com/uploads/1/3/1/6/131606179/bfa50b4fbf5f.pdfIn PDF document text
- http://files.abocomix.com/uploads/1/3/0/9/130969740/6639977.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7332/2664/files/10145951514.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0465/9252/4453/files/lodge_grill_pan_steak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1ea55a6e-c30f-4ad6-9bb9-f13615935b90/83904981015.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3930ef3d-a1db-4a48-bf6c-05368d27e473/71762283456.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/85d2fd75-a00a-429e-b5cd-5df0948617c9/towubasodifozupezo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/663712b5-99c5-43fb-8cca-26dbc4794dfb/32712133595.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bdefe674-1999-4eb6-b480-b4cd19ba1432/rowexuga.pdfIn 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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000067c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67C0 | 21976 bytes |
SHA-256: 29b243b250a1185cdad755e8ebd2c50f768e2be66c3d02be26c39858dac630ff |
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font_01_sfnt_off0000ac7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC7D | 5508 bytes |
SHA-256: 27701ff4a5d3f6754c2d3aed68a28db2d75bb5ca81e1467e0d05d992d503a2da |
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font_02_sfnt_off0000bf4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF4B | 10584 bytes |
SHA-256: ced0435f754921659499b55d2ce945be1995480f4be876c8c3c96ae72e70cce4 |
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