Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0295eeb80f7e6c…

MALICIOUS

PDF

81.1 KB Created: 2021-09-21 09:08:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 4d27650a9cf09bbc25fda4c01eba9751 SHA-1: f336768727b27aa6b053fdd6f273c4aabc6c91ce SHA-256: 9e0295eeb80f7e6c2db834f9d7abeac6e3e26980d8b92f84f3359b313d8f16f9
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a payment redirection lure. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting an attempt to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and link farm indicate a phishing or scam attempt, likely to trick users into revealing financial information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://inprovitpuertorico.com/ckfinder/userfiles/files/sesotixibiputukijepililid.pdf In PDF document text
    • http://beming.com/ressource/site-image/files/79928282794.pdfIn PDF document text
    • http://zvezda-rostov.ru/ckfinder/userfiles/files/91900564460.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff9a16e20d---51400221391.pdfIn PDF document text
    • https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/ponazitat.pdfIn PDF document text
    • http://gourmethousemacau.com/UploadFilesfile///ziterakiwo.pdfIn PDF document text
    • http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/19552524976.pdfIn PDF document text
    • http://alt-1c.ru/userfiles/file/ginubopotudapanisawofat.pdfIn PDF document text
    • http://hfnhsw.com/upload/files/43515447397.pdfIn PDF document text
    • http://hydrem.ru/images/file/15186775037.pdfIn PDF document text
    • https://sambelteri.com/contents/files/8996984349.pdfIn PDF document text
    • http://teusz.pl/UserFiles/file/dutimodaziguroluloje.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161487a1362150---29742767935.pdfIn PDF document text
    • http://dayou.tw/uploadpic/files/202109100910507246.pdfIn PDF document text
    • http://synfarm.com/upload/files/61755109677.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614163daaf5f9.pdfIn PDF document text
    • https://aahs.givingplan.net/sites/default/files/editor/file/gedomubiki.pdfIn PDF document text
    • https://kakakmanis.com/contents/files/rixasowowatezanarog.pdfIn PDF document text
    • https://xlspandoek.nl/userfiles/file/dupojomedorumixa.pdfIn PDF document text
    • http://camara.acessoainformacao.org/uploads/ckfinder/files/28604219958.pdfIn PDF document text
    • https://colakcivi.com/userfiles/file/fuxuwi.pdfIn PDF document text
    • http://malbreil.com/userfiles/file/89304983348.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131ad7bd0e7f---52668973748.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=airline+manager+tycoon+2020+mod+apkPDF 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_off0000d5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5E2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000edf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF4 17864 bytes
SHA-256: f266b632cdcb37a2a6e5df1bdeb240403e4b567bcae8beda14b7f9dad44cdfe3
font_02_sfnt_off00011caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CAA 11120 bytes
SHA-256: e29488e897df64d60cd7a20db15cb64c4417316e3e459a572338ab3cbc44c428

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