Malicious PDF — malware analysis report

Static analysis result for SHA-256 982835bd0991c4b9…

MALICIOUS

PDF

77.0 KB Created: 2021-09-23 16:30:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 3cd0f10980b4925a43ffcf73cae3ecd0 SHA-1: 51af5249e4d96365ffc647b0a5d823d50c8d6f9e SHA-256: 982835bd0991c4b90bdeffa9f73b33a7393f21c2fcf381e5664e23adde30cfeb
124 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous embedded URLs, many pointing to disposable domains, strongly suggests a phishing or malware distribution attempt. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm on disposable hosting, further supporting this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8976

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 http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/52701104958.pdf In PDF document text
    • http://transchem-tech.com/Uploadfiles/files/foredotas.pdfIn PDF document text
    • http://jornalespacoaberto.com/app/webroot/datafiles/editor/files/84763550738.pdfIn PDF document text
    • http://avision-italia.com/userfiles/files/gefavofala.pdfIn PDF document text
    • http://zygzak.eu/foto_dane/wysiwyg/File/74337226801.pdfIn PDF document text
    • http://www.wiz-fac.com/uploadImg/file/lakinigi.pdfIn PDF document text
    • https://xcheck.vn/uploads/userfiles/file/xedineteda.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/widepunutidez.pdfIn PDF document text
    • http://szcftz.com/upload/mesetipajukilige.pdfIn PDF document text
    • http://cke.hk/userfiles/65762557021.pdfIn PDF document text
    • http://esen.life/userfiles/file/bujijidalakixazafe.pdfIn PDF document text
    • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xipuw.pdfIn PDF document text
    • http://araulmor.tel-cor.com/images/library/file/wewadijawavurokuxexe.pdfIn PDF document text
    • http://olddieselparts.com/ckfinder/userfiles/files/lamimidozozuzoxam.pdfIn PDF document text
    • http://innotack.com/userfiles/file/70657583887.pdfIn PDF document text
    • https://rpaxis.net/userfiles/file/52071117097.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614032045d8fb---37320090330.pdfIn PDF document text
    • http://pasted-radio.de/web/files/97728993760.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614573058a758---tobexawituzevi.pdfIn PDF document text
    • http://mintaialuminum.com/d/files/renazulefiwatozijabod.pdfIn PDF document text
    • http://sancheonglittletheaters.com/upload/userfiles/2021/09/files/210909001217.pdfIn PDF document text
    • http://mp-hd.de/data/aktualnosci_imgs/file/pavovem.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=android+app+f%C3%BCr+manuelle+netzwahlPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD214 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ea26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA26 19504 bytes
SHA-256: b7ede1f67ed69ccbce7d8ea3567f2261af9dccb0aed782b502b565c4badc1f99
font_02_sfnt_off00011bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BDB 11016 bytes
SHA-256: daa867bcf6406ca1434e0992c5f25054d2ba99b2bf9a9069a0d18123bfe31319

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