Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e6ef533b606409…

MALICIOUS

PDF

84.9 KB Created: 2021-08-26 10:35:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: a48d0ed28c684fa7c29bb50aee44c889 SHA-1: 1b3836c64796c7cd7ea1d5f03d0ce8ad06e661e9 SHA-256: 06e6ef533b60640927725ca006ce2a8b178b4655544f9c79fa18ac30f118f9c6
236 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF document is classified as malicious, exhibiting characteristics of a payment redirection lure. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting an attempt to funnel users to malicious content. The presence of a 'clipboard command execution lure' heuristic indicates the document may instruct users to copy and paste commands, likely to download and execute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://irlanc.ru/uplcv?utm_term=one+notary+us PDF link annotation
    • http://dancedynamicsla.com/clients/38740/File/kitumepope.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/7484f68af41af5c6ac297450ad007196/84778099548.pdfIn PDF document text
    • http://ukkies.be/userfiles/file/21442953087.pdfIn PDF document text
    • http://dlzj.net/upload/files/20210813110714140648.pdfIn PDF document text
    • https://dildendilecevirievi.com/upload/ckfinder/files/3837045858.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609851b04f232---51614320172.pdfIn PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/pujizidevusimepom.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/99627237b23e9a901228cc26a421d45c/butowozixuvosanukip.pdfIn PDF document text
    • https://darshanam.com/ckfinder/userfiles/files/lalonotixemug.pdfIn PDF document text
    • http://apricomm.com/userData/board/file/liwineruzojigarixet.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/tujdjj5q5pe63m2fbpggrsiltr/fifugulewijajotonunaxijit.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160cdd86555450---mupaxaseta.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/16138316985.pdfIn PDF document text
    • https://easybuildapp.com/files/uploaded/files/zuluvosev.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab2ece21d5b---69441238585.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/614jnvthqbhepigaek54j83dmt/wuwit.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ch75a65nk4jmfrel39cfp9ihb6/wuguxan.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16092adc044d30---97547786298.pdfIn PDF document text
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f81a762777---bopenubipun.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/suzebivefakafoboforimo.pdfIn PDF document text
    • http://studionegro.net/userfiles/files/62609526644.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160761674e644c---rubikamo.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_off0000e878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE878 10204 bytes
SHA-256: 36faae53fd91ed84c254bbf37f03366829146ea87a7d6c9fd503eb84deba6a31
font_01_sfnt_off0000ff8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF8C 18064 bytes
SHA-256: 6439b705467d8b3bffddb5f5537eefad2421f431f2ca087efaf194c15653a5d7
font_02_sfnt_off00012e46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E46 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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