Malicious PDF — malware analysis report

Static analysis result for SHA-256 aefa7275ae7271ce…

MALICIOUS

PDF

66.5 KB Created: 2021-09-23 04:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 4cd5e2e09d696157a7bb0956e56f51d6 SHA-1: 6b8fe869f0659b2e231ff967219c28b637dea15f SHA-256: aefa7275ae7271cea158f9fcfa9c6825a95e177fcdb12c5e126e3079ed6d6ab4
124 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs pointing to external websites, a common tactic for phishing or distributing further malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a large number of links on disposable hosting, suggesting a malicious intent to obscure the true destination or spread malicious links across many domains. The ClamAV detection further confirms its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5224

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://irlanc.ru/uplcv?utm_term=illegal+app+store+android
    • https://hefcom-hydraulics.com/ckfinder/userfiles/files/gumanozibitan.pdf
    • https://luminex.pl/upload/file/gajuboguvumeso.pdf
    • http://topenglish.sk/app/webroot/gallery/files/52967827775.pdf
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16141df3669cc3---1685981110.pdf
    • http://pes.edu.mn/ckfinder/userfiles/files/30204516552.pdf
    • https://eccdc.org/application/webroot/userfiles/file/nazufawudukasagu.pdf
    • http://askaudit.ru/price/71192449534.pdf
    • http://maychebiengoduykhuong.com/media/ftp/file/55046790395.pdf
    • http://bridgeonlaw.com/filespath/files/20210908053002.pdf
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614bc0f7364e4---velulonekuxebapu.pdf
    • http://svatba-emi.com/uploads/pages/files/98807526033.pdf
    • http://simonkuehner.de/gfx/userfiles/files/kuditiju.pdf
    • http://ylpqzl.com/ckfinder/userfiles/files/94040383077.pdf
    • http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/sazodizoranukejiludubipab.pdf
    • http://gyarmatilovastorna.hu/userfiles/file/daraxutikavo.pdf
    • http://workcoop.org/fckeditor/userimages/file/20210919043611.pdf
    • http://www.sushmitamukherjee.com/fckimages/file/josetisasek.pdf
    • http://dgelc.com/userfiles/file/20210920111026.pdf
    • http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/93574174964.pdf
    • https://adepotcustom.com/UploadFiles/file/20210921083353147.pdf
    • http://ageddfjtj.pretty-match.com/upload/files/91066184744.pdf
    • http://arredamentoambienti.it/img/file/41234554765.pdf
    • http://thetestmag.com/userfiles/files/51687612034.pdf
    • http://johndanton.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xumijevigikizogiguz.pdf
    • http://mashhadgardi724.ir/basefile/mashhadgardi724/files/jijemazuvivaxumiropu.pdf
    • http://amongelite.com/ci/userfiles/files/37064170834.pdf
    • http://fgsconsulta.com.br/ckfinder/uploads/userfiles/files/59959243854.pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e360.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE360 16792 bytes

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