Malicious PDF — malware analysis report

Static analysis result for SHA-256 a87b14598d8a8670…

MALICIOUS

PDF

81.7 KB Created: 2021-10-06 02:08:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: ddb859ca75c4b1d131db7f6b337d00fe SHA-1: d330f0506a963b6010d6c009a4524112b95c0ef3 SHA-256: a87b14598d8a86705a24c434908ff4efbd342122cbd860440ac4fc3dc7437b1b
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and contains numerous embedded URLs, many of which point to disposable domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm, suggesting the document's purpose is to redirect users to potentially harmful sites. No scripts were extracted from this sample, but the overall structure and URL distribution strongly suggest a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3620

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://alummaswaja.com/yii/sdbalikpapan/home/images/upload/files/vowolufoxu.pdf In PDF document text
    • http://domainecomps.com/documents/files/60356382628.pdfIn PDF document text
    • https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/jerimevuredagitizero.pdfIn PDF document text
    • http://marasintl.com/public/ckfinderuploads/files/nawixukafamuku.pdfIn PDF document text
    • http://noithatlekhanh.com/Images_upload/files/96669402232.pdfIn PDF document text
    • https://projektovanje.info/userfiles/file/fezivibararit.pdfIn PDF document text
    • http://alexdisinfestazioni.com/userfiles/files/rukupumazolimabo.pdfIn PDF document text
    • http://maurovalleferroarchitetto.eu/userfiles/files/kaperivatenepelojapite.pdfIn PDF document text
    • https://qud27rxl1-k61l.com/contents/files/74974870013.pdfIn PDF document text
    • http://schokoladenfontaene.de/idata/somowawekadatadu.pdfIn PDF document text
    • https://thefertilizerequipment.com/d/files/mudukarezofelu.pdfIn PDF document text
    • http://rymwid-training.com/userfiles/file/86820667943.pdfIn PDF document text
    • https://ecableapp.com/FCKeditor/FCKimgUpload/file/5327011844.pdfIn PDF document text
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/17a20eac5de4b68fcf7ecdbad131a69e/nomuwinakowatu.pdfIn PDF document text
    • http://kusistoconstruction.com/userfiles/file/vadarunizifalezusinuro.pdfIn PDF document text
    • http://cuakeobinhduong.com/upload/files/mozugir.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401a682b6fe---39468715485.pdfIn PDF document text
    • http://extintoresorigen.com/images/editor/28332083323.pdfIn PDF document text
    • http://xn--4k0b43gkwo4gn.com/upload/editor/file/jexizilixotonobibimusozu.pdfIn PDF document text
    • https://carparts-fixture.com/file/file/98875493691.pdfIn PDF document text
    • http://jinruily.com/UploadFile/file/20210923151014529.pdfIn PDF document text
    • http://interface-referencement.com/userfiles/file/63115045314.pdfIn PDF document text
    • http://1-champagne.com/blog_images/blog_/file/diwakidiluzominibudob.pdfIn PDF document text
    • http://mrs-edu.com/sribati/editor/uploadfiles/jajitudagis.pdfIn PDF document text
    • http://shengyaweb.com/uploadfile/file/2021092911571014.pdfIn PDF document text
    • https://onecre.com/images/content/files/20293420091.pdfIn PDF document text
    • https://stoneappeal.in/FCKeditor/file/wumeb.pdfIn PDF document text
    • https://km2804.com/ckupload/files/kuroburemexofapelu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=fall+out+boy+headfirst+slidePDF link annotation

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