MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ClamAV and a machine learning classifier, exhibiting characteristics of a phishing or link farm campaign. It contains a large number of embedded URLs, many of which point to disposable hosting or redirector infrastructure, designed to lead users to potentially harmful content. The document body, though obfuscated, suggests a lure related to educational worksheets.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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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 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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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://crophysi.ru/123?utm_term=precalculus+composition+of+functions+worksheet+answers+pdf In PDF document text
- https://vujivizu.weebly.com/uploads/1/3/5/3/135305207/89e36d09c.pdfIn PDF document text
- https://tonikajolokoge.weebly.com/uploads/1/3/0/8/130874266/govabufonevorademi.pdfIn PDF document text
- https://gidixolatuloxag.weebly.com/uploads/1/3/1/0/131071157/6908c2645.pdfIn PDF document text
- http://soxiwokix.iblogger.org/rutez.pdfIn PDF document text
- https://zomerasojukoluw.weebly.com/uploads/1/3/4/7/134769652/2387741.pdfIn PDF document text
- https://cdn.sqhk.co/potiribuwuf/bIRvhjv/monster_warlord_tap_warlord_deutsch.pdfIn PDF document text
- https://dajadigab.weebly.com/uploads/1/3/2/7/132712332/8590006.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418963/normal_5fe8e5fa61dd1.pdfIn PDF document text
- https://cdn.sqhk.co/tipefimex/UAkhsvk/gofowufefof.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470545/normal_5fe2cbf4aa3b0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416675/normal_5fd9c90015d94.pdfIn PDF document text
- http://vabapagamowese.22web.org/bumupejip.pdfIn PDF document text
- https://zuveravovizopow.weebly.com/uploads/1/3/0/9/130969477/2da27a7022e.pdfIn PDF document text
- https://repawuwo.weebly.com/uploads/1/3/5/3/135313919/jeroto.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/mikibetiv/after_effects_templates_3d_text.pdfIn PDF document text
- http://jatomije.rf.gd/7812815731.pdfIn PDF document text
- https://s3.amazonaws.com/baxegezivumi/steam_slow_for_no_reason.pdfIn PDF document text
- https://s3.amazonaws.com/joterige/cancer_de_cervix_tratamiento.pdfIn PDF document text
- http://radujexoxetapil.epizy.com/caslon_antique_free_font.pdfIn PDF document text
- http://vowefaxi.epizy.com/occupational_health_and_safety_policy.pdfIn PDF document text
- https://s3.amazonaws.com/julaxel/51038713328.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11194 | 5552 bytes |
SHA-256: f3d622565c2ecd51990d6646dc449241626a3c23a0878cd35b9a222dcc0e2d3c |
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font_01_sfnt_off0001245b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1245B | 11708 bytes |
SHA-256: 4f2061cfffbce96ddb9f8e377e107c68b11b9bdbfb328df9cf12c33cb98c5a00 |
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font_02_sfnt_off00014cc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CC7 | 16236 bytes |
SHA-256: 07270020b4ef989e72d6f55cd3df7f4d59827cdf1cc36a15ee13646bc2eb4d75 |
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