Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca73e76c295281db…

MALICIOUS

PDF

43.7 KB Authoring application: QPDF
MD5: 14c2a6f0d967e06900f913621df3c9d7 SHA-1: c3cd69edb348bd7616f4475b8555f73c3bf93c1b SHA-256: ca73e76c295281dbc6b157dca63c83cc2e439fed05444ca9dcd958f2e386b41b
168 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with 18 links pointing to other PDFs. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document attempts to trick the user into installing a browser extension or update. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing and potential malware delivery intent. The embedded URLs likely serve as the initial stage for redirecting users to malicious sites.

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://rivierahome.com.mx/uploads/1/3/0/3/130323412/loleponagi-sotewivesokuno-jekarudunaji.pdf
    • http://www.deanoguitarguy.com/uploads/1/3/0/4/130476423/tajego.pdf
    • http://carriehartley.com/uploads/1/3/0/5/130589085/mewonu.pdf
    • http://fuckgeese.com/uploads/1/3/0/8/130873894/4adcc5.pdf
    • http://disarmfilm.com/uploads/1/3/0/2/130291489/8870c.pdf
    • http://amgreal.com/uploads/1/3/0/9/130969129/tavazikowekiwuri.pdf
    • http://laugh-ng.com/uploads/1/3/0/2/130273626/6461048.pdf
    • http://top20wordpress.com/uploads/1/3/0/2/130271113/9219089.pdf
    • http://johngeneralconstruction.com/uploads/1/3/0/5/130588754/jesoxojirasilo.pdf
    • http://www.immersivesafety.com/uploads/1/3/0/2/130288762/83621d79c025c.pdf
    • http://behappybyyuli.com/uploads/1/3/0/6/130621342/tajajitan.pdf
    • http://hollisharred.com/uploads/1/3/0/5/130588185/acc8c87482a009c.pdf
    • http://www.toprungonline.co.uk/uploads/1/3/0/9/130969938/925a486.pdf
    • http://www.neliscreations.com/uploads/1/3/0/6/130604741/217306.pdf
    • http://relicwinecellars.com/uploads/1/3/0/4/130488175/pivapesuto-dukomozitifalag-somaravituvi.pdf
    • http://www.theporchvaldosta.com/uploads/1/3/0/6/130605393/f2173695a1.pdf
    • http://cvillefamilyhistorycenter.org/uploads/1/3/0/3/130312996/gijobu.pdf
    • http://sobercoaching.org/uploads/1/3/0/7/130739164/2141750.pdf
    • http://dedicated-15.pleasingfood.com/uploads/1/3/0/7/130740217/130740217.html#uti+pan+correction+form+pdf+new
    • http://behappybyyuli.com/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dee.bin
77a2a90644db449a03844b1e9650b8bba3c8a976f29cb50bfecd4d6a6f80af09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DEE 7828 bytes

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