Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ce619eb9cd16b4…

MALICIOUS

PDF

91.8 KB Created: 2021-07-30 05:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 3dd727ceb56e36c8610bc615e23bcd3b SHA-1: b328d9d05725a9e58c91a3a490616e305fd36f58 SHA-256: 05ce619eb9cd16b4104dd6a015184d236be4c6981ef41813e84831dfe634f982
196 Risk Score

Malware Insights

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

This PDF was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and a critical ClamAV detection. The SE_ADVANCE_FEE_SCAM_LURE heuristic indicates the document's content is designed to trick users into believing they are receiving a prize or parcel, requiring them to pay a fee. The embedded URLs point to compromised WordPress sites hosting further malicious PDFs, suggesting a distribution mechanism for an advance-fee scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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
  • 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://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16072e5f621743---13512680667.pdf In PDF document text
    • https://phoenixturkey.com/upload/ckfinder/files/92798980182.pdfIn PDF document text
    • http://regimhotelierbucuresti.com/images/userfiles/tolugawefeb.pdfIn PDF document text
    • http://thietbixanh.net/uploads/files/lejepizuso.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a3441728763---talopojos.pdfIn PDF document text
    • http://tomnhenryanderson.com/clients/8/8a/8a1068334c160bb49438aafe8043afff/File/32724862455.pdfIn PDF document text
    • http://alexhofford.com/temp/files/file/gedoxexilokeleloxuv.pdfIn PDF document text
    • https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/vajubitazofaku.pdfIn PDF document text
    • https://marbeyoyun.com/calisma2/files/uploads/kulewivepemazefumidazufeb.pdfIn PDF document text
    • https://webvitamin.vn/app/webroot/uploads/files/28655901037.pdfIn PDF document text
    • http://mynigaoe.com/upload/file/20210606191801.pdfIn PDF document text
    • https://fl-forever.com/upfiles/editor/files/sifutaxituzorugo.pdfIn PDF document text
    • http://blackwingsexpress.com/upload/userfiles/files/69637724896.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d742b11f19d---bamerakakiwaxojuvazev.pdfIn PDF document text
    • http://honda-vo.com/upload/file/42594952785.pdfIn PDF document text
    • http://mudrkanuch.sk/editor_uploads/system/files/muduku.pdfIn PDF document text
    • http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/59182911278.pdfIn PDF document text
    • http://kap-group.com/ckfinder/userfiles/files/1260872850.pdfIn PDF document text
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2eb6a3a86a---15524601182.pdfIn PDF document text
    • http://apluskleaning.com/admin/images/file/xojaza.pdfIn PDF document text
    • http://wittzumstegfamilyreunion.com/clients/e/e5/e56c03c63d8c9260b12fda9e5e6a3df6/File/kudubebofopod.pdfIn PDF document text
    • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16073628f7b237---17392257206.pdfIn PDF document text
    • https://parokisantolukas.org/Uploads/userfiles/files/tupokeza.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae11e276877---vufuzigutilimenaw.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607311f4b28c8---12036643186.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=crows+zero+2+full+movie+english+sub+free+watchPDF 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_off00010088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10088 17248 bytes
SHA-256: d8f8bad6a97c04b83ddd94d95070b368fd327705db650c0f3615624b1881fbc5
font_01_sfnt_off00012d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D56 11384 bytes
SHA-256: a71a7c37240b718d2fc80ded4b030375a4520e3a0c60aab9c230a30072b51a48
font_02_sfnt_off00014837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14837 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1