Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce93002127cfa09d…

MALICIOUS

PDF

64.0 KB Created: 2021-03-30 16:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a5536499c8babe626bf2cefe11b2b9cc SHA-1: 634c80891ddf7939d9499f5ccd8c61b759832530 SHA-256: ce93002127cfa09dfd144204cc023f2bb851ac3818c9deec2ef59dab9dffa6a0
184 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 0.6067

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • 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://bologen.ru/strik?utm_term=what+was+the+great+society PDF link annotation
    • https://muvekova.weebly.com/uploads/1/3/5/3/135394778/670299dfbca4.pdfIn PDF document text
    • https://siwuxamafovad.weebly.com/uploads/1/3/4/4/134489720/ca48370270568a.pdfIn PDF document text
    • https://xalojuxovev.weebly.com/uploads/1/3/0/7/130774978/fesedirenaf.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • https://gisafonenum.weebly.com/uploads/1/3/5/3/135323636/d384c59ae3b6721.pdfIn PDF document text
    • http://busurman.space/79077000362902oq.pdfIn PDF document text
    • https://junafoxotoroj.weebly.com/uploads/1/3/0/7/130738975/42ead8d.pdfIn PDF document text
    • https://tolixolosunep.weebly.com/uploads/1/3/4/4/134403343/jixili.pdfIn PDF document text
    • https://ratesikumetu.weebly.com/uploads/1/3/1/1/131163578/finafoluj.pdfIn PDF document text
    • http://domsale.xyz/scientific_method_worksheet_identifying_variables_and_controlst21qd.pdfIn PDF document text
    • http://helpcopyright-service.com/what_is_the_weight_limit_for_car_booster_seatsrm0o9.pdfIn PDF document text
    • https://riwivado.weebly.com/uploads/1/3/0/7/130739124/ropakexixabu-tutimigegegis-zenaduzowem-pewuxi.pdfIn PDF document text
    • https://zavomafig.weebly.com/uploads/1/3/4/3/134356936/joguretiwozid_gomop.pdfIn PDF document text
    • https://degexaxi.weebly.com/uploads/1/3/1/4/131406510/4625364.pdfIn PDF document text
    • https://gimalijuvilonur.weebly.com/uploads/1/3/4/6/134619020/falewavofedaked-rarife-sagakinu.pdfIn PDF document text
    • http://pe50off.pro/uniden_trunktracker_iii_bct15x_programmingrqqaw.pdfIn PDF document text
    • http://joxopup.epizy.com/34343871582.pdfIn PDF document text
    • https://4eff3ec4-d147-45d1-be73-876d9e1d0019.filesusr.com/ugd/efb3f0_8e66fd2e7e9347e28cf739c8ce16a708.pdf?index=trueIn PDF document text
    • http://pinaroz.rf.gd/pejofiluzidu.pdfIn PDF document text
    • https://e02212b7-c8ec-4bf5-ba3e-d68a1de675e0.filesusr.com/ugd/7f1d73_ab8a7d0f3ddd4901b862fedd859d2e50.pdf?index=trueIn PDF document text
    • https://aa3bb5c3-2bd4-4791-9e2a-6e31d5009b04.filesusr.com/ugd/60e703_b6174322ee9d4c7297b1f1982daff8d2.pdf?index=trueIn PDF document text
    • http://vijagomifeka.rf.gd/306672963.pdfIn PDF document text
    • https://77701ba7-c5ad-4750-ab17-5b03548f7fc0.filesusr.com/ugd/9a242c_b543e2833f1b47c2b40505833297a4a8.pdf?index=trueIn PDF document text

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