Malicious PDF — malware analysis report

Static analysis result for SHA-256 f82eddae6ea44212…

MALICIOUS

PDF

205.6 KB Created: 2021-08-11 06:03:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: dbeebdbc9d16fefcd6f16862b4b004b6 SHA-1: 978eb0dcc822be1ea44173c7886b2bdf572c716f SHA-256: f82eddae6ea442128377f14aae00f96d3ed025f644104ca893090ff71a4bd872
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including an ML classifier and a specific rule for advance-fee scams. It contains numerous external URLs, many of which point to compromised WordPress upload directories or other suspicious domains, suggesting it is part of a phishing or scam campaign. The document's structure and content align with advance-fee fraud, aiming to trick users into believing they are owed a prize or funds that require a fee for delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9838

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • 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://cructi.ru/uplcv?utm_term=national+drug+education+program+action+plan PDF link annotation
    • https://egyptsuntours.com/userfiles/files/48164583764.pdfIn PDF document text
    • https://www.ojchamber.com/ckfinder/userfiles/files/31560221930.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/3650b3c6199ba6d8f82b9376093b618b/25636283928.pdfIn PDF document text
    • http://pusancard.com/userData/board/file/85296953293.pdfIn PDF document text
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f74d57991f---46963789071.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/lanidapesa.pdfIn PDF document text
    • https://jcmimoveis.com/userfiles/file/tegokovadowofokodusubi.pdfIn PDF document text
    • http://zechnerbau.at/images/content/files/61125385712.pdfIn PDF document text
    • http://whalesart.com/uploadfile/file///2021052403431316.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16091774f3a90f---313556582.pdfIn PDF document text
    • https://classconnbio.com/img-jacson/files/6203677110.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/19076220959.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160deee2986e0a---68060550200.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae2d6cd4274---jotenebesab.pdfIn PDF document text
    • http://dochoiotovn.com/uploads/userfiles/file/15012385722.pdfIn PDF document text
    • https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/319d7928257fdcce66114671a3b61909/fimokelu.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/c03d28af2be2a7a102c027d315f2557d/27699248065.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eeef9ec786---14790413349.pdfIn PDF document text
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1537584b6---fidexipekigotikesaneruno.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bf35abeba72---62225974019.pdfIn PDF document text
    • http://hyundai-baoloc.com/luutru/files/pojiwozukowor.pdfIn PDF document text
    • http://chobacgiang.net/webroot/img/files/zawuxur.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/48bba1a31cb685b2bf634027b347e39a/pusediromupagajiz.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_off0002c62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C62C 18768 bytes
SHA-256: 23d8f8f65ad27fdc3b29470c23e087b39222fcfe0e4fb0cb99bb91947900974b
font_01_sfnt_off0002f744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F744 10764 bytes
SHA-256: 2d6a1a72210c9fe32c87c1edc9c679a824b50b07051c4ab504d4096889e61a46
font_02_sfnt_off00030fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FC9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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