Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0f7263c3338798…

MALICIOUS

PDF

78.4 KB Created: 2021-09-16 00:35:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 1fa59f32aaae88624c58da72e9a32ac9 SHA-1: 9b39a2de92981cce52fef644602eb51e7e704def SHA-256: 0e0f7263c33387980f46c3e6b5e33a7b13f05835581f7e998d89e060de8ce34d
164 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many hosted on compromised websites, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malware or engaging in phishing activities. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pistant.ru/uplcv?utm_term=pokemon+ultimate+mega+fire+red+download+gba PDF link annotation
    • http://barudan.hk/UploadFile/file/20210913050025809.pdfIn PDF document text
    • http://rotarybrescello.it/userfiles/files/95791717811.pdfIn PDF document text
    • http://wpklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/75703083065.pdfIn PDF document text
    • http://www.ktgroup.co.uk/ckfinder/userfiles/files/bazenozobodiragipow.pdfIn PDF document text
    • http://nguyenxuanhuong.com/upload/files/83893143975.pdfIn PDF document text
    • http://carrozzeriabosini.net/userfiles/files/17603991541.pdfIn PDF document text
    • http://luxlustry.ru/img/upload/vurajatinadevofataxav.pdfIn PDF document text
    • https://12tiga.com/contents/files/tewokuwonutijekezinudemaw.pdfIn PDF document text
    • http://infiniti.e-library.tw/uploads/files/11848380531.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613c27702f704---warofutefujozibi.pdfIn PDF document text
    • https://juniorclublivorno.com/sitonews/images_upload/files/10608777153.pdfIn PDF document text
    • http://gwtcs.org/Content/uploads/files/79481396208.pdfIn PDF document text
    • http://latiendasegura.com/contable_prueba/userfiles/file/feziximem.pdfIn PDF document text
    • https://wildarium.com/ckfinder/userfiles/files/jejivakuwemubosubaminujul.pdfIn PDF document text
    • https://baigiangtoanhoc.com/upload/files/dokefaxuwamugowitiniduf.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161346706d1674---23242139895.pdfIn PDF document text
    • http://cdn.eagle.mn/uploads/userfiles/files/3059501887.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16141655414eed---7859796187.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/4bd63f36967bcf6018aaefe5f499f3a6/89735447456.pdfIn PDF document text
    • https://aakritidigitals.com/userfiles/files/negisib.pdfIn PDF document text
    • http://lagostena.it/userfiles/files/gubofezapilevosiraboki.pdfIn PDF document text
    • https://shellserva.nl/docs/Image/file/89664015266.pdfIn PDF document text
    • https://koratspring.com/upload/file/jenanabolajulareg.pdfIn PDF document text
    • 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_off0000c93c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93C 19084 bytes
SHA-256: fc8e83466dbf4cba4b8caedf4c4b4ab41277a77e841e15cfeb3a52fa07273505
font_01_sfnt_off0000fa6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6C 10948 bytes
SHA-256: 6b835731087023b5b5627fcecfd127dffff5e3f2e3f7204c89f10472a61bb20e
font_02_sfnt_off000113a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113A1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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