Malicious PDF — malware analysis report

Static analysis result for SHA-256 9270005bc6350bf3…

MALICIOUS

PDF

80.2 KB Created: 2021-07-28 07:55:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-22
MD5: c46c84165737f4103e780339c75a3b55 SHA-1: 626e74ef08428bb012c74ea4469da174c7713fc9 SHA-256: 9270005bc6350bf326be79972a952f9880b95e6253df81ca25171d797022c1fb
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document impersonates Apple and attempts to phish for user credentials by directing them to reset their Apple ID password via a link. The link leads to a compromised WordPress upload storage, indicating a phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=can+i+reset+apple+id+password+with+email.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608559d17e933---powil.pdf In PDF document text
    • http://aire-limpio.com/img/editor/file/punejulasasarebowevozafur.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609480f306d9b---fodususesexufazalemivekis.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d803fc459ef---fagudirawin.pdfIn PDF document text
    • http://vesimport.ru/userfiles/file/birisudaripi.pdfIn PDF document text
    • http://dietmoiquangle.com/webroot/img/files/91407681545.pdfIn PDF document text
    • http://fotografoenricogiampieri.it/userfiles/files/nobas.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/796d745f8833805c55a890a532dcd0cc/bukotusixe.pdfIn PDF document text
    • https://bajrahrs.com/userfiles/file/kirovoxo.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/967949c766a0c495a560f9bd0e4f9e09/kowona.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b875e1d7234---dakokiwusekoduka.pdfIn PDF document text
    • http://townofwinslowin.com/flash/townofwinslowin.com/file/bezubag.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8018652beb---41411471686.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/42943461078.pdfIn PDF document text
    • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/013349e51972582e07983f0c26c4bff3/xuxubopa.pdfIn PDF document text
    • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160dfd82b93662---betimagonawojazubowibu.pdfIn PDF document text
    • http://akicgiyim.com/userfiles/file/68743833478.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/82148724262a5936c4abc2f7cc65b2a6/9140793014.pdfIn PDF document text
    • http://jts-electrical.co.uk/ckfinder/userfiles/files/pinajesowakebasafa.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5b1be27b4---77327135031.pdfIn PDF document text
    • http://shsclassof1959.com/clients/a/a7/a7a82b2a6025f7fafce5d77be70bf845/File/muvigi.pdfIn PDF document text
    • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/c492828629f79d7e6fcc8aef68e157d1/47175714240.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2205e60bba---27322643621.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/f97a458104d176c34f3378336d1a4d54/jasosugir.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf1def4237---miduzixagumajazapibir.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=can+i+reset+apple+id+password+with+emailPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ecce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCE 16864 bytes
SHA-256: 2faeed5ecbae86185284bfb02d068e4dc34201290297c79f7045c9aa4edab79a
font_02_sfnt_off000118d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D4 10772 bytes
SHA-256: 428a1f7d0fe5d8329e23841a8aadf7809115dd9a0387f699d92ceceb8decbc92