MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a significant number of external links, with the heuristic 'PDF_SEO_LINK_FARM' suggesting a large link farm. The document body, though heavily obfuscated, contains text related to 'Mitosis worksheet answer key', likely a lure. No scripts were extracted, but the presence of numerous external links suggests a potential for distributing further payloads or redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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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://leonvi.ru/123?utm_term=mitosis+worksheet+answer+key+pogil
- https://sarowamirubene.weebly.com/uploads/1/3/4/7/134736793/muvunukilinad-lowig-zadubuzus-ruraguvilir.pdf
- https://cdn-cms.f-static.net/uploads/4453334/normal_5fe6664a87bab.pdf
- https://cdn.sqhk.co/vibisidumes/ggdRggP/48391503091.pdf
- https://cdn.sqhk.co/benadujeju/iboajeC/pegeger.pdf
- https://cdn.sqhk.co/totimujid/jbGOQil/red_sun_rising_uninvited_video.pdf
- https://wozizagozesa.weebly.com/uploads/1/3/4/8/134848764/9610627.pdf
- https://cdn.sqhk.co/vifejoneses/icRzjh6/guvotexubuxizeg.pdf
- https://cdn.sqhk.co/fujotojaxob/jhgg736/21853589593.pdf
- https://xiruzukigipimog.weebly.com/uploads/1/3/4/8/134865515/d490a5b944737.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://ratesedefavure.epizy.com/tisanofesulamemotosi.pdf
- https://s3.amazonaws.com/kozewuposoridil/avengers_4_trailer_in_hd_1080p.pdf
- http://punumakiwibase.rf.gd/tu_aashiqui_video_song_tinyjuke.pdf
- http://dazenuf.rf.gd/briggs_and_stratton_engine_repair_manual.pdf
- https://s3.amazonaws.com/makumapikeze/15593874017.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cdc4.bin4c00eb6d0420509a1ff3ce56c94595aca1b0e0a8b3f01b4222a80eb96f58bc8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDC4 | 5344 bytes |
font_01_sfnt_off0000e012.binc2c715d6f66a4f2a9f316df5d214fdc82f1a457569b5eeba11d2d45253843f34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE012 | 10960 bytes |
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