Malicious PDF — malware analysis report

Static analysis result for SHA-256 f027612252730ea6…

MALICIOUS

PDF

112.4 KB Created: 2021-08-10 03:13:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 5007b76ea9d627859b6d5b294a9fe8f9 SHA-1: 95bf7f9337178c64829f6e8a4f14fce8de239e7a SHA-256: f027612252730ea6133e7f2cc06b6498e6387c9afaf7ca5d8590867f2774603e
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it's part of a link farm designed to distribute malicious content or facilitate phishing. The document body is heavily obfuscated and unreadable, but the heuristics indicate a focus on external URI redirection and link farming, likely to lead users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 7

  • 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.
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://promise-land.com/upload/file/46908015733.pdf In PDF document text
    • http://zhatuogz.com/uploadfile/file/foxuketemepovuminunib.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16075cce1c23ad---8744186104.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161090347f2eab---7509433110.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/8af6e5dca86e69548e7d1e07a5a34ce8/56270745668.pdfIn PDF document text
    • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/m9obaeruh17fn6jeu14mf5bbn6/86384391023.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba45613d83---17921664522.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/taor6ubf6gqdq16nand8im98bk/vinonekanewomutesa.pdfIn PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/k2744f8godfve5ap5m02dvigrc/mamijezajibiwezopinoxukeb.pdfIn PDF document text
    • http://bdn10.cz/files/file/64816037437.pdfIn PDF document text
    • http://bjjiffy.com/upload/jadebuludelipelebem.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc09d8bc06---madopikixivipijil.pdfIn PDF document text
    • https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/7ea5449143d705463319f79c0fc0b306/vakebijuvikepekufokadeka.pdfIn PDF document text
    • https://sheenabusesandcoaches.com/userfiles/file/wafumuvuzatuwinexexal.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/fbe24d8ec939ea111820c923a814c732/fexebivalaxijisemiveluniz.pdfIn PDF document text
    • http://ccspevents.com/clients/24998/File/74961979395.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16073383b060cd---tikovaxonenari.pdfIn PDF document text
    • https://abzesolar.com/uploads/files/99903633751.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/54222641037.pdfIn PDF document text
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a944aa186fd---29844631555.pdfIn PDF document text
    • http://www.truca-taoules.com//ckfinder/userfiles/files/93158564592.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/7f52e58da3e81ece4b1b84ed1b1450cf/62638531152.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1608e14a84dda3---97849301702.pdfIn PDF document text
    • https://kajariaadsevents.com/admin/uploads/file/49456981305.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=how+do+i+connect+my+endoscope+to+my+laptopPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14585 20084 bytes
SHA-256: 2f36c0b55515a55bff7aec7c093bc39d60eb0d005467c185640ca4a4cb0c2415
font_01_sfnt_off000178d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178D2 1928 bytes
SHA-256: 2420ad3350f9d168a86df01e9b9f3c1d8d1860365ea3720e4066304389e4c602
font_02_sfnt_off000181a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x181A1 10764 bytes
SHA-256: 546c1987c996cc7d61817659113c8b149ea996d7cb19c1940dffdf43a97c11bc
font_03_sfnt_off00019a6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A6C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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