Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e2996738ba4c5e3…

MALICIOUS

PDF

62.5 KB Created: 2021-05-19 13:19:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8aac3ad8195cfcb08f43567b31aa17a9 SHA-1: 051c80a211830581b8e3a21446aa57001a2708a9 SHA-256: 7e2996738ba4c5e36744c1180db99a685263dbcc95c6056a784688c0f39876bd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to external websites, many of which are hosted on compromised CMS platforms and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8124

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://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b75046cdcf---fumuzuxomosik.pdf
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5569c6ea9---xokogonibusibujube.pdf
    • https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/lac7q3oepanfjtl4oc2eumf6al/dopuzo.pdf
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f874f4c597---76883228164.pdf
    • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ac41d7918---22394417448.pdf
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/561734b82cfc4c3b4ce134ffb6c70a80/49457644064.pdf
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160881fec57393---tamelibigugowizexamunuza.pdf
    • http://palyavalaszto.hu/teszt/upload/file/60268088736.pdf
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1607372f179263---61494898975.pdf
    • http://nedirajtebosnu.net/userfiles/file/31296855867.pdf
    • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609dca37618d1---15068985221.pdf
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/06face30c8405acb2ebb89439893e369/65255072220.pdf
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608e48c387fcf---34621780701.pdf
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/f704d94866e6957b005caee93ad6b948/99780005197.pdf
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16082c3706e8cf---fuwekilexotevetoridonam.pdf
    • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/bfb7ochgsc2f9598bl45fts0vj/56254188797.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=have+yourself+a+merry+little+christmas+frank+sinatra+lyrics
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df90.bin
07751ff08b1987c455db8141c867845971c6a8b8b28351c647025ddd04162fdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF90 5308 bytes

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