Malicious PDF — malware analysis report

Static analysis result for SHA-256 c750c43445268c75…

MALICIOUS

PDF

52.6 KB Created: 2021-05-14 06:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1aca5daed1bd189c872222f03c183264 SHA-1: 48dec9bf80bf3aa4411d1451a7f18d64e5216cba SHA-256: c750c43445268c75464d1d0061bbd150ad635fc0a7e55bc5bbb2d47132afe66a
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size and image-based content, typical of a screenshot designed to trick users into clicking a link. The embedded URL, https://leonvi.ru/strik?utm_term=how+to+fix+the+volume+on+my+xfinity+remote, is a strong indicator of a phishing attempt. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8840

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 52 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://leonvi.ru/strik?utm_term=how+to+fix+the+volume+on+my+xfinity+remote
    • https://cdn-cms.f-static.net/uploads/4413375/normal_60504c07d15cc.pdf
    • http://jewlgems.com/neworaxodewekew1r8c5.pdf
    • http://flipping-car.online/53322846638x26ru.pdf
    • http://fekevopimibun.sportsontheweb.net/26597796640.pdf
    • https://cdn-cms.f-static.net/uploads/4459914/normal_603fc5ab01f25.pdf
    • http://momsmall.space/sezepup0i5d2.pdf
    • http://nesobaka9.xyz/lexary0e0a.pdf
    • http://ubzvp.com/management_best_bookswjcv4.pdf
    • https://cdn-cms.f-static.net/uploads/4389365/normal_60293b74498cc.pdf
    • https://cdn-cms.f-static.net/uploads/4498376/normal_60546b6a5dd37.pdf
    • https://static.s123-cdn-static.com/uploads/4383695/normal_5ff3b33128265.pdf
    • http://ferafukapawap.scienceontheweb.net/dalimoxewuxibinowa.pdf
    • http://realnoe-obshenie.online/child_care_center_daily_schedulelfqyq.pdf
    • http://jonipifenukiz.mygamesonline.org/24450378282.pdf
    • http://edayafar.xyz/how_much_money_can_you_make_selling_a_movie_scriptwjr8i.pdf
    • https://static.s123-cdn-static.com/uploads/4450037/normal_5feba1f2a2fc3.pdf
    • https://uploads.strikinglycdn.com/files/a0d3694b-02dc-4db3-abb2-1affec9a7183/how_to_say_french_words_audio.pdf
    • https://uploads.strikinglycdn.com/files/5193cdc3-c6b1-4038-ac6d-0fdb4666cfeb/romuwofimexuxej.pdf
    • https://uploads.strikinglycdn.com/files/8069ffce-a537-4748-b335-029a173ef90d/analects_definition_in_history.pdf
    • http://megigezorozo.atwebpages.com/sally_s_beauty_supply_application.pdf
    • http://gezixus.myartsonline.com/bittencourt_penal_especial.pdf
    • https://uploads.strikinglycdn.com/files/2b161900-557a-44ff-acfa-914d88e8d3ef/64265842191.pdf
    • https://uploads.strikinglycdn.com/files/ae329827-330a-41bc-9428-10f580322d73/bizudizeduxubogif.pdf