MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs, including one pointing to a link farm on disposable hosting, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a 'chemical bonds worksheet answer key', likely a lure to trick users into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
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.
-
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
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://nipisod.ru/strik?utm_term=chemical+bonds+worksheet+answer+key PDF link annotation
- http://guzexesuge.mypressonline.com/lalozuva.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409257/normal_6041e4292777d.pdfIn PDF document text
- https://vilinumatilaji.weebly.com/uploads/1/3/2/7/132740241/bafejaw.pdfIn PDF document text
- https://nedetuvozuwe.weebly.com/uploads/1/3/4/6/134699612/6768136.pdfIn PDF document text
- https://lezolofajikop.weebly.com/uploads/1/3/4/3/134353880/gojazunorize.pdfIn PDF document text
- https://kumigovujubexug.weebly.com/uploads/1/3/0/7/130776874/tokixunuf_nusazirimebi_tusatinejeza.pdfIn PDF document text
- http://ruvujagefeko.mygamesonline.org/contaminacion_del_suelo_ensayo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402740/normal_6057fc165f902.pdfIn PDF document text
- http://zaxegod.getenjoyment.net/akrama_sakrama_form_57.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462344/normal_604e4500e5234.pdfIn PDF document text
- http://wekanisa.scienceontheweb.net/76334744062.pdfIn PDF document text
- http://wopexobow.mywebcommunity.org/sekiwunutimuvuv.pdfIn PDF document text
- http://medazuxa.mywebcommunity.org/the_other_side_of_the_door_2016_full_movie_in_hindi_download.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://s3.amazonaws.com/xakusineba/datesetim.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4761747b-95c1-45c9-86db-ff1a717dddc6/us_army_white_paper_format.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37e48057-dbe6-439c-8122-eea52265df8e/cuales_son_los_pronombres_personales_en_ingles.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bae171b9-7924-4e91-8ec1-cd8eec8ee3e4/jukate.pdfIn PDF document text
- https://s3.amazonaws.com/vonutavekip/vivew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/079819f9-27ff-4737-95e1-1b39c69acdec/25072979709.pdfIn PDF document text
- http://romepasuv.myartsonline.com/way_back_into_love_sheet_music.pdfIn PDF document text
- https://s3.amazonaws.com/zoluwivebiro/virogaxefefavitujegomu.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14906 | 2828 bytes |
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a |
|||
font_01_sfnt_off00015301.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15301 | 5388 bytes |
SHA-256: a4c045fb69a196dab62e584615af6e2314f5730c65fe128df61bdee4915ec85d |
|||
font_02_sfnt_off0001652e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1652E | 10232 bytes |
SHA-256: 0b8804de2be36493575eb64964a9dd126ced20828c049269ee14436082324d49 |
|||
font_03_sfnt_off000187f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x187F1 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.