Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e0007640a9285a4…

MALICIOUS

PDF

65.7 KB Created: 2021-05-15 05:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43ca329f4d64a8ee765c09c74509fa8a SHA-1: 06e53e50fd9e2ff4ed03cf59da8ddf96125deb3a SHA-256: 1e0007640a9285a4349f85c494f92e771f8831164cdd0a08a0103874ce2d6b2c
154 Risk Score

Malware Insights

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

The PDF file contains numerous links to potentially compromised websites, suggesting it's part of a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8461

Heuristics 5

  • 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
  • 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.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607758bdf223b---nanekoxabosusunaxewoxiti.pdf
    • https://liniagdanskzydowo.pl/files/zivib.pdf
    • https://almoheetmanpower.com/public_html/userfiles/file/43431264656.pdf
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81986fb37---46767534511.pdf
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/bahrtocmjq5930c4iaqt3mgll2/latuvebaguxujamove.pdf
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16088630789bbe---bakum.pdf
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16092979856a63---95859758147.pdf
    • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/3828d6df639b3183d0848d50078eba6f/bumibukafajexoreg.pdf
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072a07071e97---zidajamowig.pdf
    • https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/752dc4fa6040dd5bb061b7a5a4dc9ae5/43229434508.pdf
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9c2de716b---gozijawiperisazulo.pdf
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/d4d531ebf35a651fa3b449fb57d3b1fe/17543000964.pdf
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c824d6b942---namavebasulupakera.pdf
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/01de6c58fa43a9773c07038860f0073d/75608585084.pdf
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/8799642f6cb233ac36b1b7e23235204d/18306624241.pdf
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160986832663fc---rejowizamabikomag.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=colorado+springs+real+estate+market+report
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da13.bin
59dbb412651d11384f7befc9c690851bd8f7b9a5268de69236ae6d5505b0bef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA13 5248 bytes

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