Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ff2b8c226e686f…

MALICIOUS

PDF

75.5 KB Created: 2021-10-05 07:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: ecdac840d66cd7cb41605eab1e656807 SHA-1: 83349cbcea641f8f66e4e1b2451fc7133c5f03a0 SHA-256: 30ff2b8c226e686fae2c92e0f016ba896b15a736cfeac5a5e56fac6db5e38501
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 various domains, some of which are hosted on compromised WordPress sites or disposable hosting. The primary lure appears to be offering free movie downloads, a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of numerous external links suggests the PDF's purpose is to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6834

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://queure.ru/uplcv?utm_term=sultan+tamil+movie+free+download PDF link annotation
    • https://blnk.eu/userfiles/files/16909859939.pdfIn PDF document text
    • https://asiantms.com/ckfinder/userfiles/files/wopij.pdfIn PDF document text
    • http://afro-safari.com/upload/files/84943130441.pdfIn PDF document text
    • https://plasy.com/uploads/file/64907428221.pdfIn PDF document text
    • http://familiegravesen.dk/userfiles/file/72636599076.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615137a178b87---wetafodupoteram.pdfIn PDF document text
    • https://uleshuzataruhaz.hu/files/file/75166014342.pdfIn PDF document text
    • http://vencedor.coop/images/admin/file/tojiremud.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1615368cb54013---zudoborukodonavivigup.pdfIn PDF document text
    • http://zgic.ru/!upload/files/83421079281.pdfIn PDF document text
    • https://iword.de/userfiles/file/69950351021.pdfIn PDF document text
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16133e866540d7---boxube.pdfIn PDF document text
    • http://willbramephotography.com/75416495862.pdfIn PDF document text
    • https://wonwon.taipei/photo/file/49294145627.pdfIn PDF document text
    • http://areaengineeringsrl.eu/userfiles/files/wuzawikuvaretegebamejiwun.pdfIn PDF document text
    • https://ochronaskory.pl/pliki_user/File/33423846867.pdfIn PDF document text
    • http://ferrogep99.hu/static/media/file/89176789157.pdfIn PDF document text
    • http://iccarrentals.com/files/file/nukojijenegogugopipedi.pdfIn PDF document text
    • https://presentkompaniet.com/img/content/file/bemonudunumawakiradekuwo.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/c5lmb4ofskr0tvaa6pds93cjk0/sogiwajifibibomotixun.pdfIn PDF document text
    • http://wingmanresearch.com/userfiles/files/popaziwusamuximonakupo.pdfIn PDF document text
    • https://nuttydog.hu/ckfinder/userfiles/files/jaziv.pdfIn PDF document text
    • 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_off0000db32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB32 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF349 10672 bytes
SHA-256: 0ab510d5fc8430d1bbe1e804237b380c49c40ed54be0bbc642c20cd13e495b27

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