Malicious PDF — malware analysis report

Static analysis result for SHA-256 484a5d2ec00fea6a…

MALICIOUS

PDF

91.9 KB Created: 2021-09-10 08:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 06475978f4cdc57b97f1c4f902761241 SHA-1: ba445aa74141da4146c5b11e351555daa3a541e2 SHA-256: 484a5d2ec00fea6abfc23f0a80a18010eb62d120963b0f2da481a0ddab2a5172
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 http://lapawan15.com/shop/fck_file/file/visukigukebuxawejipe.pdf In PDF document text
    • http://centrons.com/uploaded/file/852154185612ec01db6397.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/dad6b0f2a4fb68af9110c691174b2fa0/kojabovamamozuwas.pdfIn PDF document text
    • https://pnvvr.ro/userfiles/file/19389671284.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/8eb316fab089760828f96d97d01018f9/fejasafogagezuxeminomabox.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b42fa4887---febitunupixizibosuziro.pdfIn PDF document text
    • http://maskaevlawyer.ru/userfiles/file/89345395410.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/wozodaloj.pdfIn PDF document text
    • http://etpatatietpatata.com/userfiles/files/54745949134.pdfIn PDF document text
    • https://phr4u.com/files/dotonozaxetav.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aba56f415b---firukubuneg.pdfIn PDF document text
    • http://lafiestadelmoto.cz/files/file/nazepamokokomak.pdfIn PDF document text
    • http://immobilieninvestors.org/userfiles/file/mujigavibupixarivu.pdfIn PDF document text
    • https://weishinclinic.com/uploads/files/202109040420048840.pdfIn PDF document text
    • http://mynotary.ca/sites/all/sites/mynotary.ca/files/vegesizararuvorabefatab.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161319b650b697---93638001684.pdfIn PDF document text
    • https://aramlasmerok.hu/uploads/file/vorugesesitexanidojalug.pdfIn PDF document text
    • https://inprovitcaribe.com/ckfinder/userfiles/files/busiveweravivejazo.pdfIn PDF document text
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/nebnu8cl8l54arvblot9gcgmd1/23862546585.pdfIn PDF document text
    • https://kopari.hu/files/file/sujibolobopifu.pdfIn PDF document text
    • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/23bc7b577c58b4ff6aa55b5aa2981754/xosibetiregisomosi.pdfIn PDF document text
    • https://terracetemayonetim.com/upload/ckfinder/files/64890412064.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=the+road+not+taken+by+robert+frost+pdfPDF 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_off000102f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B0B 18172 bytes
SHA-256: f89277e871f518e952cb9c91f0fafd9de97ebaa601d034f610d54fa954d0d079
font_02_sfnt_off000149c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149C2 10764 bytes
SHA-256: 3973ce7e245c968ae52e2eebb1c57c1fe3e565fd23761773ac01a9c86e9e964d

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