Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f85a9be01363db0…

MALICIOUS

PDF

69.3 KB Created: 2021-09-10 19:57:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 1c9798e261095fddf9368439aba65a56 SHA-1: fa555017b481057039738ebd5386c3ba53884787 SHA-256: 9f85a9be01363db0e7a55ccbd71e6fe40cc7de789f180169c41f070afa67234c
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URIs, with one pointing to a raw IP address, indicating a potential attempt to host malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of multiple links, including one on disposable hosting, points towards a link farm or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9130

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://thomasgearon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pidonidoveniwezoso.pdf In PDF document text
    • http://sity-luxe.ru/userfiles/file/kawedegapesomosi.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/525f907705e8f4b588727e8db58ba15d/68557750701.pdfIn PDF document text
    • https://888nv.ru/userfiles/file/dapazonubekujupamadugufu.pdfIn PDF document text
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/a085a0735899856666ccfadb65742017/25434607457.pdfIn PDF document text
    • http://amirafouad.com/uploaded_files/file/bumixoguvatubabep.pdfIn PDF document text
    • https://majorsagilekvaros.hu/uploads/file/19412641233.pdfIn PDF document text
    • http://gazetavk.ru/img/file/gawepo.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff00066b16---zewuji.pdfPDF link annotation
    • http://nzozkrowodrza.pl/uploads/editor/file/warerowejonosi.pdfIn PDF document text
    • https://seedomoretravel.com/files/files/gawedusifemukavuvuv.pdfIn PDF document text
    • http://multi-accueil.fr/ressource/site-image/files/20356191234.pdfIn PDF document text
    • https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/pupusogaxejo.pdfIn PDF document text
    • http://mikomisushiwc.com/uploads/files/55899961527.pdfIn PDF document text
    • http://studiotecnicodavico.eu/userfiles/files/41445571648.pdfIn PDF document text
    • http://chrisdepanneservices.fr/Sites/cds/files/vorebuwusod.pdfIn PDF document text
    • http://ibtaker.ps/userfiles/file/zebatoxiwezebisiwe.pdfIn PDF document text
    • http://placc.info/up_image/78292898864.pdfIn PDF document text
    • https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/lelimukaka.pdfIn PDF document text
    • http://ky-auto.com/uploadfile/files/12010361913.pdfIn PDF document text
    • http://kronospan-mofa.hu/editor_up/63338640527.pdfIn PDF document text
    • http://klwas.org/userfiles/images/file/44236439346.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/ratajapoketakefubekuluram.pdfIn PDF document text
    • http://rymwid-training.com/userfiles/file/27343830422.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=prayer+to+thank+god+for+his+faithfulnessPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f67d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF67D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1