MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://kuzutuzo.ru/123?utm_term=what+exactly+is+protein PDF link annotation
- https://zefojakafi.weebly.com/uploads/1/3/0/7/130776787/4174949.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4484118/normal_5ffdb74bba14f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482219/normal_601a70fd2fb99.pdfIn PDF document text
- https://nopuxexej.weebly.com/uploads/1/3/4/4/134498230/gasebikofu-wanasi.pdfIn PDF document text
- https://jarovoxo.weebly.com/uploads/1/3/4/5/134511136/1292317.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490365/normal_600447766fbd1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491164/normal_600b30eea75a8.pdfIn PDF document text
- https://tomumexajozovod.weebly.com/uploads/1/3/0/9/130969356/xokemelebuxilug-maluwu-kokegivenuri-pevigedul.pdfIn PDF document text
- https://fomememuvur.weebly.com/uploads/1/3/4/0/134000402/3339537.pdfIn PDF document text
- https://livesagu.weebly.com/uploads/1/3/1/4/131437401/4240159.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454543/normal_5fced0632b4ed.pdfIn PDF document text
- https://semulojera.weebly.com/uploads/1/3/2/6/132695334/pefasotoxuzonupux.pdfIn PDF document text
- https://zamamuxito.weebly.com/uploads/1/3/4/2/134234866/gudesevige-mesuwuguje-raxujositufuboj.pdfIn PDF document text
- https://febelozo.weebly.com/uploads/1/3/4/5/134599394/latugofogezidik-nijevelafed-xofore.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://8b83d164-5e56-46cc-b941-48f48810ddf3.filesusr.com/ugd/76ce43_e1f1efe177be4149a568b7a828fec352.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/50f0a216-7bbc-453e-adde-c2c31ae3012b/fujitsu_scanner_6130_maintenance_kit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/880e46cd-1328-450d-9a45-f90e228eb43e/larupekuxixemepimu.pdfIn PDF document text
- https://3e1ae61b-6b68-46dc-8a90-d1c7a5b9f91c.filesusr.com/ugd/b8bbd7_330a10f442ec43caa0570a8f2c9c1a03.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e83584fc-0ce1-42f1-b123-0ff467aab030/70538216982.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_off0000f0b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0B2 | 4992 bytes |
SHA-256: 2cefc7890578142160ed71670b4aae8a324f74c53f0e44a2a69251afd0f55148 |
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font_01_sfnt_off000101ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101AE | 10716 bytes |
SHA-256: ff9c1c9d41e81c4b4ccd323b664a31f9954bb7bf70acca37f0d522b9072a9dd8 |
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font_02_sfnt_off0001265e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1265E | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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