Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d3868bcc3b2e25…

MALICIOUS

PDF

86.6 KB Created: 2021-07-14 01:12:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 635689b0e794b2b9c824baa69990a45c SHA-1: 92b8ef73bb205eea5c4e36e44edb80aaf576101b SHA-256: 07d3868bcc3b2e25e1ca824df62ddec04691e8f72810890b76153bd11e901b87
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites and disposable hosting domains, likely for phishing or malware distribution. The embedded URLs and the PDF structure strongly suggest an attempt to exploit user trust through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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
  • 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://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/q0qumtcb9bqmvada4ijjn1b8l4/22030183746.pdf In PDF document text
    • https://etadelloro.it/images/file/sadazir.pdfIn PDF document text
    • http://cc-loges.com/uploads/file/vupewevisiwogozopuzaf.pdfIn PDF document text
    • http://walthamclassof1985.com/clients/5/52/52060312c10aa816a718e90a19a6a7a1/File/8685140597.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7617d8657---45151866728.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160e37a769d72d---34798128386.pdfIn PDF document text
    • http://www.derbysignandgraphics.com/uploads/file/xirezefasabopekasakaraku.pdfIn PDF document text
    • http://parcfamilyreunion.com/clients/b/b3/b3ae52aef0329bb57e848b27182677c8/File/48437708372.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e3bbbbefff---29003188485.pdfIn PDF document text
    • http://gloexdr.com/wp-content/plugins/super-forms/uploads/php/files/01d97e86722fea80a97e1efa60fc6892/45755340060.pdfIn PDF document text
    • http://medicapoland.pl/uploaded/file/69124683468.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160ede8e10b6fe---zigokagagazukuwazi.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6da6617ea---refimemosexuxonixo.pdfIn PDF document text
    • https://robert-zauer.cz/userfiles/file/susuwapapava.pdfIn PDF document text
    • https://fotokeramika.bg/userfiles/file/birurovixotum.pdfIn PDF document text
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/aff7fe63f9981e081397dc2ac826a3fe/janoxolujojetutitud.pdfIn PDF document text
    • http://cornucopiafrederick.com/uploads/files/jigubotad.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/1a2932dd08c2b51934e9307cfbc2a816/67487178832.pdfIn PDF document text
    • https://irepairplus.nl/app/webroot/files/userfiles/files/xofusodokajutibu.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d319142240a---10323393638.pdfIn PDF document text
    • http://robalton.es/Albums/images/file///lupopisupe.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16096555d4fba6---gukelura.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=pencil+drawing+of+lipsPDF 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_off0000ef74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF74 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001078b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1078B 10784 bytes
SHA-256: 9dcc7d4daa29795f7d5783505566b7601e6851320412db73302c5c9218cc1da5
font_02_sfnt_off00012050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12050 17200 bytes
SHA-256: c2ac54e8777f01c03879581497b74837ef11a0d8bb20aded979195e500896117

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