Malicious PDF — malware analysis report

Static analysis result for SHA-256 4904cf79d5c4ea80…

MALICIOUS

PDF

48.0 KB Created: 2021-02-11 12:50:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a2b5ba9038c749fabee004b83c649663 SHA-1: 94d57c61b3111c4b80fe8d00468d975cc2f92e15 SHA-256: 4904cf79d5c4ea80683d9acce77578f08c544ec38044d37df358be21b4584294
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 0.9335

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://jottigo.ru/123?utm_term=it%2527s+always+sunny+in+moscow PDF link annotation
    • https://vowipolijej.weebly.com/uploads/1/3/4/7/134713390/8384708.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/ixgchgz/finding_blue_free_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/lipebefaje/ig7uZml/teluguxaloxew.pdfIn PDF document text
    • https://fenazimo.weebly.com/uploads/1/3/4/4/134437137/2293371.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/e9jiyCj/pan_fried_blue_cod_fillet_recipes.pdfIn PDF document text
    • https://satizivuzaked.weebly.com/uploads/1/3/4/3/134383512/liwenilepix-lazomiv.pdfIn PDF document text
    • http://repair-kompov.ru/lab_rats_2_walkthrough8lvv9.pdfIn PDF document text
    • http://kernig.store/clarinet_song_sheetsq5d8b.pdfIn PDF document text
    • http://recepty-dd.info/negejuzuvibasixuojmh.pdfIn PDF document text
    • https://cdn.sqhk.co/kalusoxat/biihaWt/vafojoxeremilebufevimo.pdfIn PDF document text
    • https://cdn.sqhk.co/gijosevozu/gvIRsig/drill_master_battery_62873.pdfIn PDF document text
    • http://bodapefazit.rf.gd/bluecoats_uniform_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/60118709993.pdfIn PDF document text
    • http://surifetopene.epizy.com/55974568761.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.