MALICIOUS
252
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links to external PDFs hosted on disposable domains, indicating a link farm likely used for SEO manipulation or to distribute malicious content. One URL, 'https://ggtraff.ru/strik?utm_term=seesaw+class+app+for+chromebook', is identified as a malicious redirector. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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 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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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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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?utm_term=seesaw+class+app+for+chromebook In PDF document text
- https://kozipizifepawu.weebly.com/uploads/1/3/4/6/134631686/mululibuponomebol.pdfIn PDF document text
- https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/letiw.pdfIn PDF document text
- https://muvisodujop.weebly.com/uploads/1/3/4/3/134358588/titika.pdfIn PDF document text
- https://nopogevoxipati.weebly.com/uploads/1/3/1/4/131410158/rared-tonopisozepope.pdfIn PDF document text
- https://bawezinanowele.weebly.com/uploads/1/3/4/3/134305895/2257309.pdfIn PDF document text
- https://virataxutepubom.weebly.com/uploads/1/3/0/8/130874282/4436454.pdfIn PDF document text
- https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/5757701.pdfIn PDF document text
- https://koruguliduni.weebly.com/uploads/1/3/4/8/134896859/1158fafc16.pdfIn PDF document text
- https://fefaterivigem.weebly.com/uploads/1/3/4/3/134375274/f7840bf3a2584.pdfIn PDF document text
- https://kotugelofamoxu.weebly.com/uploads/1/3/4/4/134403640/e86191092cf.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/xifabilejilab/43516823813.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc13908affbf90a66ec9ac0/t/5fc28e5c4f9837572032c469/1606585949184/measuring_deer_antlers.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d32b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD32B | 6440 bytes |
SHA-256: edf517a561ed5132c6c1d5718ac6ff9d870a00e6f43a91762fd168a2279cca75 |
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font_01_sfnt_off0000e321.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE321 | 5656 bytes |
SHA-256: d2419bd47db73bc878f049e9dcf07a55ee524aedd1ee282c0af63ee662e40983 |
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font_02_sfnt_off0000f639.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF639 | 3052 bytes |
SHA-256: 14663db970efb5d12c9baf3e930531b4233e0458e557457c29f2ec8b3469099e |
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font_03_sfnt_off00010314.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10314 | 11324 bytes |
SHA-256: b10d2eb677c6f2ded67a5e8b6fa280e401b314036e541e78d45f285fe99982c0 |
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font_04_sfnt_off000129bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129BD | 16036 bytes |
SHA-256: 149cab45689013e99d1aa520d2e5234663aa5d8577b6aae5e423b5d60aeda4c1 |
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