Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeec01dad1590e12…

MALICIOUS

PDF

280.1 KB Created: 2021-06-26 11:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 62a2ae791c0ca908ed0ee8fea6a891d2 SHA-1: de3bf1d354920bacd0f0d88d26f97de18964d4a0 SHA-256: eeec01dad1590e12b7b5d6e2eb11f87d900d1ac77b81e622cabc494a7c074850
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which appear to be hosted on compromised CMS platforms, suggesting a link farm or phishing lure. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to trick users into paying fees for non-existent prizes or parcels. ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9759

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://archism.ru/uplcv?utm_term=data+structure+and+algorithmic+thinking+with+python+pdf
    • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/24a9548519fa99ee3da0d070d9773b96/66088535121.pdf
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc6c3cabe1---sufemomupow.pdf
    • https://hkbca.org/UploadFiles/file/20210603204240103.pdf
    • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/375eb5647151c1bb4591636be4db0118/51057026752.pdf
    • http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160884337b8c19---vegopugomeketulapiviriwe.pdf
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/1e3de6bb91bdd7a8de24b01aa467322b/83560269404.pdf
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c18b339e49---xujametesotesapiminosas.pdf
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/1d6a434166c4114ada22c77a25349165/jezoniximala.pdf
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/e36040872eabeb4dbb0c10eea4b2e6d5/46526045026.pdf
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7f447c0a7---dewamenugona.pdf
    • http://thebrownsfamilyreunion2008.com/clients/81208/File/72379152362.pdf
    • http://banghetretunhien.com/media/ftp/file/60912835577.pdf
    • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/01c5292a786371b39a4736053196783c/deturavo.pdf
    • https://ferado.vn/userfiles/file/wodelulikifejewirajajerub.pdf
    • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606ea2b610af9---50349782120.pdf
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16078b0310a2c9---sekigumobowirefuwaxeni.pdf
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608790ee3eaa4---58381632599.pdf
    • https://rockyshairsalon.com/wp-content/plugins/super-forms/uploads/php/files/4vr3vbti16vb4din9194uve07o/fupenutokivogixewopu.pdf
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075aad25eb64---39552933824.pdf
    • http://nano-vip.com/ckfinder/userfiles/files/99347211281.pdf
    • http://akinmedikal.com/uploads/file/10522511160.pdf
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1609e079763e74---nifaseperipes.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b46b3f65f72---pofogafopure.pdf
    • http://bagliodeimille.it/userfiles/files/21565526880.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e9f6.bin
4a5e44e58f38a3afd023af7150d2dbd86f06d6a8d6bfc66f1f5638175d0c0ab3
pdf-font-stream PDF embedded font (sfnt) at offset 0x3E9F6 19428 bytes
font_01_sfnt_off00041e39.bin
aee89065c7e7ef71d538007462b6055836377695993d94d363460df9008d8713
pdf-font-stream PDF embedded font (sfnt) at offset 0x41E39 11460 bytes
font_02_sfnt_off00043902.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x43902 16792 bytes