Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3246096ba3c3443…

MALICIOUS

PDF

72.2 KB Created: 2021-09-02 04:34:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 667046ae106ca2cd4ba6dcd6af8200e0 SHA-1: 32785239ce22f5305c0e5a0d13b6a08662c24e45 SHA-256: e3246096ba3c3443059a201aece4acf0ce9eabef0b0d206e8804199cb7b09792
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to various websites, many of which are hosted on compromised CMS uploads or disposable domains. The primary purpose appears to be redirecting users to potentially malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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
  • 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 https://nusantarabet4d1.com/contents//files/nasurafuvimedifit.pdf In PDF document text
    • http://berries85.com/clients/4/4c/4c86f126b1006e50d570d35f0f20b0f3/File/bozokan.pdfIn PDF document text
    • https://ichibaninfotech.com/ckfinder/userfiles/files/72090713466.pdfIn PDF document text
    • http://crmrealty360degree.in/ci/userfiles/files/galubadunig.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/adf75b3de3f16a8d311f9042bebadd72/lidemumevazu.pdfIn PDF document text
    • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/b9d8b920ae59fdc6aeb6495144887cff/23978679682.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d99b9e75459---72281284663.pdfIn PDF document text
    • https://vishalahospitality.com/ckfinder/userfiles/files/86000532120.pdfIn PDF document text
    • https://sistemagestiondpr.com/userfiles/file/21264013166.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/040da8f7a5b3f3278dad804bd6f5cc26/89055418876.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd57162d6a---filexidabuxinibawidubo.pdfIn PDF document text
    • http://grafiport.com/userfiles/file/69858236402.pdfIn PDF document text
    • http://dolphinegypt.net/userfiles/file/58860088741.pdfIn PDF document text
    • https://zop.bg/webroot/img/content/files/sovemevawikaja.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160adf5ac465ad---nesozunigetoleselax.pdfIn PDF document text
    • http://buildinggodskingdom.com/webcms/file/taremeteb.pdfIn PDF document text
    • http://biemmecommerciale.eu/userfiles/files/lumabibedub.pdfIn PDF document text
    • http://annassteen.com/ckfinder/userfiles/files/96188168336.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d47119fe1---dawulelutokojugiregawoses.pdfIn PDF document text
    • https://mimpiindahsatu.com/contents//files/sexirubofuporipofuteg.pdfIn PDF document text
    • http://adria-ex.com/images/blog//file/72868077583.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1606efc33291a7---wodosuriremizibopunosonur.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=for+sale+edgewood+nmPDF 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_off0000baf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAF2 10464 bytes
SHA-256: c80576ab1638a6a4965c8ab9715ff8a93f6622922997b17d2d1c0959c694dfe4
font_01_sfnt_off0000d27e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ea90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA90 15640 bytes
SHA-256: d6386dc3e79d50199c33596592653b3bbf34200423e62a4412b4c9a94c115ab8

Open this report in the interactive analyzer, or submit your own file for analysis.