Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f37e8e40d2df0dc…

MALICIOUS

PDF

36.8 KB Authoring application: Karbon
MD5: 8f7d05afae7fbd1b2a7445152eebc602 SHA-1: 743504f4f31ebb6d351764db6b987b1bb4d2eada SHA-256: 0f37e8e40d2df0dc8016bd90de3cdb74b921b5475e4affdb203df960ee9f3229
220 Risk Score

Malware Insights

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

The PDF contains numerous embedded links to external PDF files, presented as a download lure for a converter. This pattern, combined with heuristics indicating a browser extension installation lure and a phishing context, strongly suggests the intent is to trick the user into downloading and potentially executing malicious content. The ML classifier and ClamAV detection further support the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://realboxers.com/uploads/1/3/0/9/130969515/newure.pdf
    • http://tysprettythings.com/uploads/1/3/0/2/130289640/9ca4f82.pdf
    • http://savethemiddleriver.org/uploads/1/3/0/6/130603988/mowakon-lukikenufeza.pdf
    • http://tre-xperience.com/uploads/1/3/0/8/130813866/1172986.pdf
    • http://nogrindnoglorytx.com/uploads/1/3/0/6/130604213/zarijenuv_redesa_getazopafemeri_latosolipa.pdf
    • http://vanvolleyleague.ca/uploads/1/3/0/4/130489039/684a12c58b30d3.pdf
    • http://winebar.org/uploads/1/3/0/5/130588735/moxobamix_tuvokazen_jemizuwaji_fisiri.pdf
    • http://www.blueballs.shop/uploads/1/3/0/3/130312996/kotudidopabevafuran.pdf
    • http://hitcharchive.com/uploads/1/3/0/7/130776492/9664896.pdf
    • http://gardacidadania.com/uploads/1/3/0/3/130323302/1650712.pdf
    • http://forecastcreative.com/uploads/1/3/0/2/130287285/nureragonititubopup.pdf
    • http://mhcs.me/uploads/1/3/0/7/130738806/4506580.pdf
    • http://nemaresidences.com/uploads/1/3/0/2/130287852/sakosamilevax.pdf
    • http://imijbloc.com/uploads/1/3/0/6/130639578/897880.pdf
    • http://desvosges.com/uploads/1/3/0/8/130813885/bogaf_mugiwexo_nodamafenikuzu_xazujuxasawokon.pdf
    • http://a1821787xstreamtravel.xsideas.com/uploads/1/3/0/4/130488213/130488213.html#pdf+to+jpg+converter+freeware+portable

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003366.bin
abb246c1012fb3839bddfc1d1c2c04fad1f1b864d0d51b05401a678d30a764ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3366 8336 bytes

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