MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. One of the primary URLs extracted is 'https://zajinet.ru/strik?utm_term=how+long+should+you+sleep+with+zzzquil', which appears to be a lure for users searching for information about sleep medication. No scripts were extracted, but the PDF structure and numerous external links are indicative of a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://zajinet.ru/strik?utm_term=how+long+should+you+sleep+with+zzzquil PDF link annotation
- https://padokerasuwo.weebly.com/uploads/1/3/5/3/135319223/vemanelijaf.pdfIn PDF document text
- https://ruwuragawani.weebly.com/uploads/1/3/4/3/134383911/9210254.pdfIn PDF document text
- http://gumidaz.medianewsonline.com/72803937200.pdfIn PDF document text
- https://mevukufidax.weebly.com/uploads/1/3/1/3/131379039/2288050.pdfIn PDF document text
- http://sigisuzuk.getenjoyment.net/the_complete_green_letter_book.pdfIn PDF document text
- http://zovitidagawas.sportsontheweb.net/wujab.pdfIn PDF document text
- http://pazifelurup.medianewsonline.com/37479289303.pdfIn PDF document text
- https://ludutaxe.weebly.com/uploads/1/3/0/8/130814402/a98b369ea7d667f.pdfIn PDF document text
- https://lobavasato.weebly.com/uploads/1/3/1/4/131483685/linesufujokod.pdfIn PDF document text
- https://xukopalobupekon.weebly.com/uploads/1/3/4/7/134730613/9b8bff7e4bc.pdfIn PDF document text
- https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/4df2d.pdfIn PDF document text
- http://jofipifemu.medianewsonline.com/1646118522.pdfIn PDF document text
- https://xududegugi.weebly.com/uploads/1/3/1/6/131636960/sirotofovase.pdfIn PDF document text
- https://litepuvib.weebly.com/uploads/1/3/4/7/134741427/5513013.pdfIn PDF document text
- http://jesofoma.getenjoyment.net/82152890620.pdfIn PDF document text
- https://dafepigog.weebly.com/uploads/1/3/4/6/134605944/negamevep.pdfIn PDF document text
- https://dawerofe.weebly.com/uploads/1/3/4/3/134361643/d246ec5f21ada.pdfIn PDF document text
- https://givozerav.weebly.com/uploads/1/3/2/7/132710596/gonosududusitumari.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/31dbd0b7-a166-4bcb-af9a-d5cefa167d5a/vabumemibezudoxowimenuko.pdfIn PDF document text
- http://nukivamo.myartsonline.com/dire_straits_brothers_in_arms_guitar.pdfIn PDF document text
- http://bokawevetejap.atwebpages.com/30526683370.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c6e3ce54-24f6-40be-9ef1-642a0ee73392/fazedutafitunesujiwug.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a30771a1-eee5-4e6d-939b-9d55b9740238/parasoxovikobebipiterizok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a76ef2e2-8017-4260-852e-ce1dcdc5eba5/dapple_dachshund_puppies_for_sale_in_houston.pdfIn PDF document text
- http://zitadufafasid.onlinewebshop.net/59330056580.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_off0000fea4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA4 | 5248 bytes |
SHA-256: cbc053d767c8fb00fc72057675c4e0d9a3a55b7c1a560a5e146e7906df48f0d6 |
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font_01_sfnt_off00011099.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11099 | 10548 bytes |
SHA-256: aeace5b78cae4b43c74710de8d0506023abd145b0414ef939cbe1ee2ac682a15 |
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