Malicious PDF — malware analysis report

Static analysis result for SHA-256 90ae2086301b568b…

MALICIOUS

PDF

67.9 KB Created: 2021-07-14 07:11:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: fe9f515d248881d50ed99e9ccdfa7fab SHA-1: 21e97cc77974eaa1c873c364427a676e227cb262 SHA-256: 90ae2086301b568be9ef6dca4674b6b41386ce7e33c6046960a26ede506754ea
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a link farm, with numerous URLs pointing to potentially compromised websites. The heuristics indicate the PDF is designed to host a link farm, likely to redirect users to phishing or malware sites. No scripts were extracted, but the presence of external URIs suggests an attempt to lead the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3638

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://garglob.ru/uplcv?utm_term=tarrant+county+clerk+fort+worth+tx PDF link annotation
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/f8a115fc782942f79f52884430d29dd2/37704146824.pdfIn PDF document text
    • http://nikacarpet.com/My_Project/Hamishe_bahar/ahar_img/files/kabuwadawovevi.pdfIn PDF document text
    • http://abwcoliseum.com/uploads/files/momawu.pdfIn PDF document text
    • https://egyiksem.hu/uploads/file/ziroforedokawevu.pdfIn PDF document text
    • http://micronforgacsolo.hu/UserFiles/file/9559896045.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a81ce746aa7---vululasuro.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/8d2e1185c3f83883daedc9299ddf98f2/95474881149.pdfIn PDF document text
    • http://bioscipublisher.com/files/upfiles/file/65687934519.pdfIn PDF document text
    • http://tingyi-bnb.com/CKEdit/upload/files/kuxila.pdfIn PDF document text
    • http://karpatskiles.ru/store/file/zavumodetubigo.pdfIn PDF document text
    • http://coffee33.ru/archive/file/25713028693.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/10629719607.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c9d011b99da---nijanidilasulobomiwoxis.pdfIn PDF document text
    • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/e607b70a2e00447d8037d5bf29da47b4/32298248207.pdfIn PDF document text
    • http://shahnawazonline.com/uploads/files/bajuf.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce4019b639---rivikavekotageju.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67b8aa0b10---nirimivopikulomid.pdfIn PDF document text
    • http://www.aadhar-interior.com/userfiles/file/20594100593.pdfIn PDF document text
    • http://canevinclassof70.com/clients/6/6b/6b8b8ee0d314e59372afbcb75100d768/File/41000509734.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/a1d471653ce81dea80f33c530fca0c6c/ditiwevofaworavalofitepu.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/91b1c9207166c4918e4e871e0fc416b7/12056850222.pdfIn PDF document text
    • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/7128d71e57f4357662c172288783f686/6448789466.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/leludowuner.pdfIn PDF document text
    • http://detaycopymatbaa.com/userfiles/file/vatixi.pdfIn PDF document text
    • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/f62216b6fa08d4225124f1f47e3e2414/mozofigareponofefatapak.pdfIn PDF document text
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b72a36c5359---xawalunebibej.pdfIn PDF document text

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