Malicious PDF — malware analysis report

Static analysis result for SHA-256 127193fad469ee68…

MALICIOUS

PDF

67.3 KB Created: 2021-09-15 10:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 14b3d2ac2e10ae4b6f576d21cf06a55a SHA-1: 3ef0d8fb105a63072ddebfa9da80dbf3e8f2f67f SHA-256: 127193fad469ee68279a2fe059190a99a2b0cb4472e1d60181aacce345ad41ca
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF exhibits characteristics of a phishing lure, including being image-heavy with a clickable action and containing numerous links to potentially compromised websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to phishing or malware hosting sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://starfoil-mail.nl/uploads/wysiwyg/temazabujasom.pdf In PDF document text
    • https://wfca-czech.cz/temp/userfiles/files/65160838205.pdfIn PDF document text
    • https://nurdagihaber.com/resimler/files/58444677750.pdfIn PDF document text
    • http://a-pluset.com/userfiles/48989172409.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab01420cb6---xirimezorewabumugiv.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141140c5865c---5527107799.pdfIn PDF document text
    • http://gospel-pour-100-voix.com/fichiers/newsletter/file/golufes.pdfIn PDF document text
    • https://s-serviss.lv/userfiles/file/39968549543.pdfIn PDF document text
    • https://rm-parketi.si/uploads/lipoxagowonuvevem.pdfIn PDF document text
    • http://hyeminshop.com/DATA/files/86465382326.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/66237281094.pdfIn PDF document text
    • http://canadianrockies.info/files/file/25309463295.pdfIn PDF document text
    • http://stroi-sistema.ru/img/sefomulebaj.pdfIn PDF document text
    • https://fiscalonline.eu/app/webroot/files/userfiles/files/jikiruzalopezasuk.pdfIn PDF document text
    • http://stoka-saarlouis.de/userfiles/file/67685951377.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411df490341---kunawijivupazalebugonu.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16135dfd3012c5---zusegab.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614172dea41b6---37640289057.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ddf0ba45b---10614731960.pdfIn PDF document text
    • http://ettorebelfioreliutaio.it/userfiles/files/liruwitabipo.pdfIn PDF document text
    • http://cyklo-sport-servis.cz/UserFiles/File/newomosewapuropubuxigasob.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=vidmix+ad+freePDF 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_off0000aec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEC6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c6dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6DD 10048 bytes
SHA-256: 31a64bc1bfdfdca0313118cb98bf2721b5dc1deaf76ee4564ce2c7685f88ea32
font_02_sfnt_off0000dd29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD29 14108 bytes
SHA-256: 3aba9d660231393307bd0fa4a974a0a33b5be4b5c30dd7b4e1b201d90eb7c950

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