Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbee0fc6226ccbfe…

MALICIOUS

PDF

38.0 KB Created: 2020-04-01 20:00:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d3570a7c803febe667aa0c9bd17c006 SHA-1: 6a7cd2c5e6ac36737ea49036b6d34fb9f2e42e97 SHA-256: dbee0fc6226ccbfe2c20168a69c960528e2e548922540f706433d97661169de2
70 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used to host malicious content or redirect users to phishing sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to distribute malware or lead users to malicious websites through a link farm. The document body, though heavily obfuscated, contains references to 'David Halliday Fundamentals of Physics PDF', suggesting a lure to download a seemingly legitimate resource.

Heuristics 4

  • 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.
  • 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
  • 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://helpking.org/uploads/1/3/0/7/130775610/130775610.html#david+halliday+fundamentals+of+physics+pdf
    • http://team-ingwe-bowls.com/uploads/1/3/0/8/130874559/5540491.pdf
    • http://botoxformenatlanta.com/uploads/1/3/0/8/130814062/268276.pdf
    • http://malainavaden.com/uploads/1/3/0/2/130270991/1472068.pdf
    • http://thepremiumconcierge.com/uploads/1/3/0/3/130379087/kovore-xuzilitidew-sifefifuwivixeb-zixedu.pdf
    • http://manubio.com/uploads/1/3/0/9/130969089/3fe5daf.pdf
    • http://hostmaster.alexmorrisart.com/uploads/1/3/0/8/130874231/jikeke.pdf
    • http://tiendanow.net/uploads/1/3/0/5/130590265/916463c621ef0.pdf
    • http://oacmyanmar.com/uploads/1/3/0/6/130620642/b8ba938f.pdf
    • http://bubblefingerboards.com/uploads/1/3/0/6/130620767/2fd33c3.pdf
    • http://theloftclnrs.com/uploads/1/3/0/4/130490687/656737.pdf
    • http://hostmaster.ciscotool.com/uploads/1/3/1/4/131437689/mulan_foxor_gibuxisor.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b9d.bin
6e7db4eba4fdcc89117bcfe8072610da3d4698fac5b9c0684933b140cec0f883		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9D 8204 bytes

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