MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL https://cctraff.ru/strik?utm_term=chess+opening+lab+mod is confirmed as malicious. While no scripts were extracted, the presence of a malicious redirector strongly suggests a phishing or malware delivery attempt, aligning with the 'Spearphishing Attachment' technique.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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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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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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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://cctraff.ru/strik?utm_term=chess+opening+lab+mod
- https://static.s123-cdn-static.com/uploads/4376875/normal_5fe449ac759d5.pdf
- https://cdn-cms.f-static.net/uploads/4380700/normal_5fa518b69eabb.pdf
- https://static.s123-cdn-static.com/uploads/4449405/normal_5fce8ec53ed13.pdf
- https://cdn-cms.f-static.net/uploads/4371495/normal_5fb9116aa7ae1.pdf
- https://static.s123-cdn-static.com/uploads/4374682/normal_5fe5b8799e312.pdf
- https://cdn-cms.f-static.net/uploads/4383698/normal_5f9624d0316d3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/bepukuba/implosion_full_version_apk.pdf
- https://uploads.strikinglycdn.com/files/64325938-0dd9-4bb9-8995-cdc31f5bc3c9/suwunezono.pdf
- https://s3.amazonaws.com/tajimipojimo/what_is_a_ozone_air_purifier.pdf
- https://s3.amazonaws.com/fejatepudopito/building_construction_atul_prakashan.pdf
- https://s3.amazonaws.com/fekazudabo/95326147851.pdf
- https://s3.amazonaws.com/gixirojozogufux/hotmail_hotmail.com_l_my.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d95a.bind21445e11e34284a500801a5303864e6b502d6a83342fa67432efacfd85dfa7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD95A | 5324 bytes |
font_01_sfnt_off0000eb43.bin3ed64f638b8fabab28e9106762b6549ed18fe0c6a1f8405a0dd8fef17fedcbda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB43 | 11384 bytes |
font_02_sfnt_off0001118d.binba11a93f5048ae8472b7177df685806fd18b8cc29be6b0d4f33ce6e98c2a9d3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1118D | 16416 bytes |
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