Malicious PDF — malware analysis report

Static analysis result for SHA-256 911796684c2cc9bb…

MALICIOUS

PDF

127.6 KB Created: 2021-10-21 11:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: e1bce98ecc8b629153dd8ab2cbe7e8ae SHA-1: 1a6001de6b13b81694af0d88e53a41c706aa049d SHA-256: 911796684c2cc9bbf9134c51f562d89cb9b98ce625458b6ca2f80b19b3693392
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm pointing to multiple domains, many of which are hosted on compromised CMS uploads or disposable hosting. ClamAV detected this file as Pdf.Phishing.Trojan, indicating a phishing or trojan distribution intent. The embedded URLs suggest an attempt to lure users to external sites for further compromise.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3747

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.
  • 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
  • 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://vmwarts.com/ecovic/file/24229936716.pdf In PDF document text
    • http://photo-preiss.com/upload_files/files/liled.pdfIn PDF document text
    • http://kelvista.lt/images/files/68884612480.pdfIn PDF document text
    • https://evermoral.hk/upload/file/1631235952.pdfIn PDF document text
    • http://webcertain.ca/contentupload/fckeditorUploads/organization_/file/sepulebifojiweduwewuwupog.pdfIn PDF document text
    • http://mfcwestenkwartier.nl/beta/userfiles/file/34839869385.pdfIn PDF document text
    • http://www.childofafrica.org/media/userfiles/file/pivovarererokoj.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16160798fc669f---35668608477.pdfIn PDF document text
    • https://aparcaderoshaddaichile.cl/uploads/images/files/biwazideketutoder.pdfIn PDF document text
    • http://playonathletics.com/userfiles/file/49522896189.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1617034f90c3cb---46712578749.pdfIn PDF document text
    • https://terminarz.online/kosmetyczka/krakow/files/25904916463.pdfIn PDF document text
    • https://hotel-la-licorne.fr/userfiles/file/16710855406.pdfIn PDF document text
    • http://consulcongress.it/uploads/assets/file/5879247368.pdfIn PDF document text
    • http://vibrator4you.cz/UserFiles/File/mopajan.pdfIn PDF document text
    • http://azseal.net/uploads/userfiles/file/26759659710.pdfIn PDF document text
    • https://bloc-immo.com/images/kekamewawipuwav.pdfIn PDF document text
    • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16168aa6249108---12815425494.pdfIn PDF document text
    • http://amblesidewindermere.ca/fckuploads/images/file/38997474985.pdfIn PDF document text
    • http://flairpens.ru/uploads/files/2163804868.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16135f31678693---vijejimuraki.pdfIn PDF document text
    • http://ascensionchina.com/userfiles/file/9880751252.pdfIn PDF document text
    • http://peak-experience-japan.fr/images/blog/file/fugediwawipogege.pdfIn PDF document text
    • https://ihappywash.com/uploads/files/202110200701107833.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/45661797636.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/KGDyd8lM0uI/uplcv?utm_term=pulled+peroneal+tendonPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001af20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AF20 21436 bytes
SHA-256: f8f1cbfe618ff9a183ac197ff1baaa2ba88443de4ad77cdd6c274c81c0c666ca
font_01_sfnt_off0001e6b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E6B7 10224 bytes
SHA-256: 0869deab41691371d2642e98e1a609fc78d7013cf7b59b4b52e54ae7bade7a87

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