Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb6e3f334ebd0aed…

MALICIOUS

PDF

59.6 KB Created: 2021-05-16 17:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 910576578de6992c109bcf6457f30570 SHA-1: 9807e50c18eecb50052c46673979e98edc5e408a SHA-256: fb6e3f334ebd0aed2a4b55bbcc43c1c11e9639ca35df28ff95f749719be5e3a0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to websites hosted on compromised CMS platforms, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery via these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8123

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 http://vasvaripalmuzeum.hu/upload/file/foxitipopaxepeji.pdf
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/f66b3dd124a9f596c6dfd45d1df4d149/josodexow.pdf
    • https://anukulagrotech.com/userfiles/file/zefazeguliwugefusimanatot.pdf
    • http://poorclarescork.ie/images/64612019847.pdf
    • http://charivne.info/images/file/wikezitebukabufag.pdf
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/4uajmd7586t3fmgk2elo37i7j4/tubebiresal.pdf
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb226cb763---99599574165.pdf
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/6aa5f89c85c3f9111adec1ffef69ee18/6426584957.pdf
    • https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/p3gn75t76tolls6ruuhmifnjgg/34033622404.pdf
    • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/3581dca5b52a9acf89379658d9872581/pidapijakukagudaviren.pdf
    • https://batikatravels.com/userfiles/file/zitugezenaf.pdf
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/0ge5mv3nkb4hf5fot0oebgqah8/dujimopakezowagokavebezok.pdf
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608683283654c---61585756666.pdf
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf9248acbf---27157408597.pdf
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5c81a6ceb---mizeloxixidim.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=autechre+warp+tapes+89-+93
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5e9.bin
0de8312b78fc03a8a499e48502677271f7ff6a026a1fa017eccdf28135940dca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E9 5616 bytes

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