Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e4ccc8ed2b4803…

MALICIOUS

PDF

62.5 KB Created: 2021-05-02 07:32:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3551dac85b4ee78cebf70bf3de341143 SHA-1: 56cc01e66434435a2d93cd664d31acbbfcc09a76 SHA-256: 49e4ccc8ed2b480398c49ccf4d124e887d6e629d6ff3d8530064a81a9910eb4d
154 Risk Score

Malware Insights

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

The PDF document contains numerous links to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7615

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://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/957a10b6cf4c97285e2c3d6b306127a7/87712980254.pdf
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0oo8ds7cmonorj80b0bd0mosd1/xobuguganukirokes.pdf
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/4eb114a4edca94d8b52cf4389acea4a4/29544496660.pdf
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16077eccdaf3fe---15350829042.pdf
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e74bd37668---32222176273.pdf
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/a535ec5f20fc38b534844ab52e8bc376/53110991857.pdf
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/05e986c6bdf9119ff27dd500ba266f30/romus.pdf
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/5k8m600q18mo771ribho9pt110/51624232480.pdf
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/sa3h9pk9klou7pc3f0bkq2red5/57206368331.pdf
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/a2425f88c4e7c9632b7ce7ecaf583b13/57231713014.pdf
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc0095029a---gosixetevetewili.pdf
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088dacb31b81---63053688514.pdf
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/khfqqccti7uljc1s7u8t97q706/88558590849.pdf
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607d235d4dcd1---batisig.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=harry+potter+theme+on+violin+sheet+music
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ded5.bin
6bc8e19d3dca5f83404f0bbd24ecc4c012029db5bb0ce586e945e46d46bc50a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDED5 5296 bytes

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