Malicious PDF — malware analysis report

Static analysis result for SHA-256 324f3280e70948b6…

MALICIOUS

PDF

210.7 KB Created: 2021-07-19 09:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-01
MD5: 4edd17833ce9911c42940e1d76036761 SHA-1: 8058cc11100d4929a9f0b4943dfd589bae4aa556 SHA-256: 324f3280e70948b6a23e7241b4bd94aad4bc9cb21035d2c99c09f9ec99af0e0b
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9914

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 http://teakdeck.pl/files/file/xofawozadepep.pdf In PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/287e4bd98c1c1e9bd9f54486b11898a4/74595111543.pdfIn PDF document text
    • http://zuche0551.com/upload/file/6985040495.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/jtg8o35ie3eo370glv4b1ckhmv/somopazumojav.pdfIn PDF document text
    • http://tourister.kr/userfiles/file/bipofuvabopa.pdfIn PDF document text
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/afc9d6b54ac70c445a6879d8d573de44/57508693300.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e9144c0773d---3347419124.pdfIn PDF document text
    • http://alexdisinfestazioni.com/userfiles/files/nabibibagere.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160708d54cc796---dotosoluwisesunu.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddc54453be8---davejolokedumepekusekoba.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a5d1cb03a09---dixafupowaponako.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eca853a282---rilogutilobapo.pdfIn PDF document text
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/a0bd1f72391c573d3f6091aa7cea9542/fulukuvaripotidigapomoba.pdfIn PDF document text
    • http://i-daa-wl.de/userfiles/17190835518.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0abd7d4565---14373569733.pdfIn PDF document text
    • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a7cbfc1bd19---46728903981.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a481bda1562---9584452409.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a7bb89490---36892050919.pdfIn PDF document text
    • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/b4feeb9a9fb8bfe5212a96acc8a6c20f/jijisala.pdfIn PDF document text
    • https://namratalakhotia.com/userfiles/files/veveza.pdfIn PDF document text
    • https://barcelonacentremedic.cat/files/galeria/files/50652865975.pdfIn PDF document text
    • http://ultraljud.nu/bild/files/buwufovimusitivi.pdfIn PDF document text
    • http://skyline64reunion.com/clients/e/ec/ec378541aa9b73e2b99de5ca5545ec21/File/xawabutoge.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790f366b8fb---21380357146.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=visiting+rights+for+unmarried+fathersPDF 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_off0002dfe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DFE1 16924 bytes
SHA-256: c5f8ee9cd150daf780838900a281556b8413c43d5a99b426064ff2725da6c458
font_01_sfnt_off00030c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C10 10824 bytes
SHA-256: edf37aa7ce456ff6bab9c6c3ffd0cb6b6909ca9534aac7445af99641ab3380a6
font_02_sfnt_off000324ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324AD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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