PDF malware analysis — malicious · a01cf7dfa6b82376

MALICIOUS

PDF

43.4 KB Created: 2021-06-07 19:22:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24

MD5: ef2e19bc21b667a6f4e65cdb1c5e608d SHA-1: e5c5ec1de771eb386a8e95496b86a44c869e8d9d SHA-256: a01cf7dfa6b8237666c2e56192b964f0601f43bc90d7dceca814cf5607652ad9

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.7810

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV 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_FARM

Small 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.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://synerhu.ru/pbw?utm_term=all+intransitive+verbs+list+pdf PDF link annotation
- https://static.s123-cdn-static-d.com/uploads/4444353/normal_60b0e5fb68c76.pdfIn PDF document text
- https://dewokipapofoz.weebly.com/uploads/1/3/2/7/132741709/6231314.pdfIn PDF document text
- https://rodefakuwutepez.weebly.com/uploads/1/3/4/3/134341390/7540976.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417824/normal_604d1e50293af.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384632/normal_60585862bb678.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500447/normal_600a575f16409.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4527237/normal_605875412b455.pdfIn PDF document text
- http://kipizasuzeda.pbworks.com/w/file/fetch/144738711/problemas_de_fracciones_faciles_con_respuesta.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/de985ef3-a7b3-4228-b313-75c459711d8f/photography_gift_certificate_template_photoshop_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/98645a86-8b74-43fb-aebf-7f6562de9b7d/1048763238.pdfIn PDF document text
- http://gepefupugalu.pbworks.com/f/pokemon_x_mystery_gift_codes_citra.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3756166e-53ec-4732-9734-1c5ee18c2055/gedewovadagibadewanosiw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e682cf06-d34f-4c2a-9769-d61804ceffb0/why_students_should_not_have_to_wear_school_uniforms.pdfIn PDF document text
- http://wemilamozede.pbworks.com/f/petolujetuzebu.pdfIn PDF document text
- http://pebakix.pbworks.com/f/coin_master_free_spins_hack_download.pdfIn PDF document text
- http://feteselulo.pbworks.com/w/file/fetch/144471396/how_to_keep_a_dog_from_getting_distracted.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c295b30d-21d6-4550-9c24-558b42864fe2/rabarenevasabamojezofuv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/462b88ba-ac91-451d-bcae-99d7cc5b449b/30315691267.pdfIn PDF document text

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