Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e1e3a4c1e3c4d93…

MALICIOUS

PDF

67.6 KB Created: 2021-05-21 20:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e8ac1fc077d183ec6242165018fede2 SHA-1: 2bf4b8ec4dc89a699150fa47e278999ec9d48035 SHA-256: 7e1e3a4c1e3c4d9347d399b9632706f161cf6f8d14d142f90bca0c798918d396
156 Risk Score

Malware Insights

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

The PDF document contains numerous links to external resources, many of which appear to be hosted on compromised websites or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4ac1b991f---95738803750.pdf
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608af7297fd9d---81870110452.pdf
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f850432ed5---bipof.pdf
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160a675fd1b763---dedotovazujov.pdf
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/66261845b2aad4695619ca5663d585a5/45630664528.pdf
    • http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e8bd95667---zivovo.pdf
    • https://akproauto.com/nbloom/fckuploads/file/44777325625.pdf
    • https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/4a3349cb7c149e4452f74cfacf47f926/nesana.pdf
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/ebbddbf78c3a5b097233082c724909ba/2474377427.pdf
    • https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/8511b93fbb84b2f0d37bf1c67bb6402d/80367533161.pdf
    • http://xboxheerlen.nl/userfiles/file/zowozukajagakujor.pdf
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d76dd44221---95980364375.pdf
    • http://architects-desk.com/uploadsfile/mabitifonesosotixe.pdf
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/4160b4788a6318efca3c239195dd20e3/75370716505.pdf
    • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/a6svdnqmhburk97quj7skkp7lj/72014714659.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=driving+licence+test+questions+in+telugu+pdf+download
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb4c.bin
cb7c0d29f631721d67ef8f7f1e59ba925509012345c66d0cb2a026485db653c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB4C 5600 bytes
font_01_sfnt_off0000de82.bin
477ccb093c516512438355d5eba72e36a1b412f931ae389f2d9cd39b7a24555a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE82 10196 bytes

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