MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate this malicious intent. The embedded URLs are likely used to redirect users to malicious sites for credential harvesting or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://xajibur.ru/strik?utm_term=schaum%2527s+outline+of+calculus+sixth+edition+pdf PDF link annotation
- https://dunebuka.weebly.com/uploads/1/3/2/6/132682868/76435eb2f173c.pdfIn PDF document text
- https://rajuvafawomok.weebly.com/uploads/1/3/4/4/134455823/1601998.pdfIn PDF document text
- https://cdn.sqhk.co/madufuxenuw/hcjcVgd/gedufitele.pdfIn PDF document text
- http://baffer-shop.space/ratefelukogow3ykvz.pdfIn PDF document text
- https://cdn.sqhk.co/romilononove/jef4giA/ivanka_trump_instagram_fashion.pdfIn PDF document text
- https://cdn.sqhk.co/bomemenun/NigxhaA/delesozor.pdfIn PDF document text
- https://boderaraza.weebly.com/uploads/1/3/1/4/131454415/fbdd30c.pdfIn PDF document text
- https://cdn.sqhk.co/bijukipuj/ehg0iji/diraliribezarig.pdfIn PDF document text
- https://cdn.sqhk.co/vuguvorexi/fvjgajc/chitra_video_songs.pdfIn PDF document text
- http://universityru.fun/long_john_silvers_hush_puppies_dairy_free4egsx.pdfIn PDF document text
- https://sugibovipebu.weebly.com/uploads/1/3/4/7/134705953/janedomaxidonul_lifalotutor_dijategorin_romosewadelu.pdfIn PDF document text
- https://vigekajabaka.weebly.com/uploads/1/3/4/7/134708837/zexero-novadizolo-rotasozuwolige-vefazibemivu.pdfIn PDF document text
- http://repaircreditscore.info/421479108009ya5.pdfIn PDF document text
- https://cdn.sqhk.co/dosojegomugu/yh6ifja/crossword_puzzle_generator_with_answer_key.pdfIn PDF document text
- https://cdn.sqhk.co/rapowipijes/77rgUar/fojapuporaxagekomuxobu.pdfIn PDF document text
- http://safetymirrors.xyz/77393028742xo8it.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/1c8cc204-5f6f-43cf-ae5b-e57690f3a105/susezubisosigazofuzomevo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ee3e2df-8bda-4556-b8aa-4f4c42aac0e5/how_to_fold_total_gym_1800_club.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a0ae8e3-b0ba-47d9-86d7-8e96caaa7367/my_hp_envy_printer_will_not_print_in_colour.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35e859f7-4e15-43ad-97fb-ad986445327b/what_is_the_rarest_rainforest_animal.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0425984e-76c0-401d-8dc9-3c8bf4b8fbe1/how_old_is_klaus_baudelaire_now.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA2F | 5504 bytes |
SHA-256: 77f6db802f058c716c35106c27225863de3f8ac041908d57d804f6b42224910a |
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font_01_sfnt_off0000ecda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECDA | 10744 bytes |
SHA-256: f5f3339a55a6de69240301c948f3bba1fffaf7633850d433379213134d76e533 |
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