Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6202c46193919cd…

MALICIOUS

PDF

72.2 KB Created: 2021-09-20 03:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 2972a0d320bcfcea5e39090c8f734420 SHA-1: 9b2ac653a23d9550ee0d29306d8f2cd166ebfda2 SHA-256: d6202c46193919cdbd214a4d54bdee579042ae668fbffab4fbe12d89cbfe44b2
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on disposable or compromised domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9885

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://angerdress.store/ckfinder/userfiles/files/pazizulete.pdf In PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/44ebd8526696c58136923d81f7618c7d/88225504213.pdfIn PDF document text
    • http://unibox.lv/files/text/63666994332.pdfIn PDF document text
    • http://nataliashishkina.com/userfiles/file/nukilenimufuwi.pdfIn PDF document text
    • https://garnizone.com/userfiles/file/39143065805.pdfIn PDF document text
    • http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/59543166461.pdfIn PDF document text
    • https://shreenathtechnologies.com/userfiles/file/29811152180.pdfIn PDF document text
    • http://myphamso1.net/uploads/files/suvagata.pdfIn PDF document text
    • http://tt-ural.su/admin/ckfinder/userfiles/files/79195433182.pdfIn PDF document text
    • http://ehomerealestate.org/images/file/17983137873.pdfIn PDF document text
    • http://netcentricnj.com/ckfinder/userfiles/files/demumanovofupomifo.pdfIn PDF document text
    • http://cdkuys.handysociality.com/upload/files/jiwaxodobowivetulupape.pdfIn PDF document text
    • http://araulmor.tel-cor.com/images/library/file/dulowamufewis.pdfIn PDF document text
    • http://misosmile.com/upload/editor/files/mekirepidunalaniraxip.pdfIn PDF document text
    • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/58254eeee94f8877c5349b25cb6a4160/886902878.pdfIn PDF document text
    • http://ajarnveerapong.com/UserFiles/file/32170985458.pdfIn PDF document text
    • http://dautuck.com/uploads/userfiles/file/warurazivarosiroxavo.pdfIn PDF document text
    • http://bugskin.org/userfiles/file/lisamefaxuxopadi.pdfIn PDF document text
    • https://landi-bg.com/images/file/tegukilap.pdfIn PDF document text
    • http://hlqh.net/userfiles/file/20210914013038_1213623310.pdfIn PDF document text
    • https://webbsoil.com/home/webb/public_html/ckfinder/userfiles/files/21258111312.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421db4c4aa7---15358032081.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/49560753691.pdfIn PDF document text
    • http://hzaidele.com/images/upload/File/39111624543.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161429645c0e68---wiwesufunoxovu.pdfIn PDF document text
    • http://vietsonplastic.com/uploads/userfiles/file/pagif.pdfIn PDF document text
    • http://cityclick.it/userfiles/files/goloropepoxunirosebiwo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=vn+app+download+for+androidPDF 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_off0000ba07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA07 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD219 16616 bytes
SHA-256: 9d499408748f8082577748444abf1fcd2b4b13296b23668ec8b26336423b83b2
font_02_sfnt_off0000fc3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3D 10148 bytes
SHA-256: 4b4f3b61703f2a705f1d54ac1b1babacd0ae36556fa0cacf731acd8114c03408

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