Malicious PDF — malware analysis report

Static analysis result for SHA-256 32b67f064c665de7…

MALICIOUS

PDF

87.9 KB Created: 2021-08-10 13:25:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: a099318fd767c9ca54021adf5846ffe3 SHA-1: 2937a6a26b3dadc402aea70bfcb4f04dc6d67ff0 SHA-256: 32b67f064c665de7176e1e072c375897732e1c8dc5a8285dc0c4020cabad1171
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many hosted on compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to exploit users via malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/41bcdb12372e29bb19296323c4e11815/46641305050.pdf In PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/052e4040d0b5147b99f5931fcddd409a/lagetomu.pdfIn PDF document text
    • https://datajournonepal.org/files/zadepefirufutezum.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a82bd9943e1---10134593887.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/g5ah0g1dhqmenbig2er0mcb8ii/dakopunajokoroboxazu.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/041334163995.pdfIn PDF document text
    • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/94ad927b164a52d6b56e6c7467fb8711/luxafaxefulivomoselaxeju.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/de1bae4ee495ce12b0b060ae07d764af/68997945434.pdfIn PDF document text
    • http://noavarservice.com/ckfinder/userfiles/files/90937443509.pdfIn PDF document text
    • http://growlink.biz/userfiles/file/97620605189.pdfIn PDF document text
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/1a80cd5f2a94cf352f025324bf82bb0c/jubagapamemalimokowa.pdfIn PDF document text
    • http://mazurubezpieczenia.pl/zdjecia/fck/file/lefagiwiwolaruno.pdfIn PDF document text
    • http://meadescafe.com/userfiles/file/rabebavez.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160feb45ef0c83---mezoxelovem.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085dcb2dc8ca---5369136927.pdfIn PDF document text
    • http://atiksigorta.com/files/vobipi.pdfIn PDF document text
    • http://ilovemynewstemcells.com/clients/865932/File/lubuxaxurimepadajuxapam.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/408a27dce4b871ed67c5370cef09001d/zunijujamivigefaj.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f05cf8df3ee---dunudilolokovoropoju.pdfIn PDF document text
    • http://apexhealthnutrition.com/newerac2c/userfiles/file/43240741430.pdfIn PDF document text
    • http://cesnek-vysocina.cz/UserFiles/File/nutazamarobibekaseb.pdfIn PDF document text
    • http://lnaixi.com/userfiles/file/20210618160833_1655738183.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=2018+aprilia+rsv4+rr+specsPDF 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_off0000f0c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C5 18356 bytes
SHA-256: 615b40a9e3240c7b1f55e69c6991cf3e994c456a136612cf13ac7812cc0a7f06
font_01_sfnt_off00012118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12118 10596 bytes
SHA-256: 3b475f2853c4861f4d647e278bf0b71f5185823903c2afeefd696c6ddd656849
font_02_sfnt_off0001398b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1398B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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