Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c99b694f81c770…

MALICIOUS

PDF

112.0 KB Created: 2021-06-29 22:00:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d42b2e5afd3de06d6cb64d65d5754004 SHA-1: a41b6c9d554fe721f69a63cc0389cde75ad3f820 SHA-256: 96c99b694f81c7701b6ddb573d80a28dd309a511fa7359acba277da160ccfc41
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or trojan distribution mechanism. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories on various domains, suggesting an attempt to distribute further malware or phish users. The presence of multiple distinct hosts and the use of disposable hosting further support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6443

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/dqnkq4gngdgfe10mdgt008b59t/29694263132.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c85392e474d---dowuzav.pdf
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f67f7eee17---sedugugorebimobirogij.pdf
    • https://webmenuplus.com/images/file/74512296682.pdf
    • http://aihyang.com/userfiles/file/godijunorisukogawufu.pdf
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a32de9af603---sasepamefe.pdf
    • https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/4b04f8a12715e24c41f9fa4b3ecc812a/38978727942.pdf
    • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/mfkvhphv995e49bc4aqus6gvv2/betapetoliwimakomibekaraf.pdf
    • http://aarogyamedico.com/userfiles/file/fogonutaniveparoxonoxo.pdf
    • http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/48939683588.pdf
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2f4a8f65b---godarulanakobesubumel.pdf
    • http://onlineticketreview.com/images/file/wajamobupomipowif.pdf
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3eb43d72fcbb24511e44dc1c2d912fb3/62751476115.pdf
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607784855cc39---xigiturorewinorenu.pdf
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0e5371d39---67078884331.pdf
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608d7c1e563dd---48808277053.pdf
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/91d9f252ce6820eff1fc6d6a42279d35/16669239441.pdf
    • http://abnicum.com/files/file/8279491984.pdf
    • https://lolakarimova.uz/ckfinder/userfiles/files/zedimibasisisu.pdf
    • http://rheumatology.instituteupload/content/file/mopakezexakasejafub.pdf
    • http://md-servicios.com/userfiles/file/gomikumimesoremamej.pdf
    • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1401b0c4585d7d2d211c38e2d2266aaa/91116553580.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=was+actor+chuck+connors+gay

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