Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e94ba8f56319b3a…

MALICIOUS

PDF

44.5 KB Created: 2020-04-01 19:22:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 547bb232c25309c7eec0a33fd44ab280 SHA-1: ec8a9992fbf3e6461d748be60894862c962153ab SHA-256: 8e94ba8f56319b3a0462ee8cb50918346c5eab2dad5aebc62e148d0ab35324b1
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body, though partially corrupted, contains text related to a TV show recap, suggesting a lure to attract clicks. The primary heuristic indicates a PDF URI pointing to an external HTML file, and another critical heuristic flags the PDF as a link farm. The numerous embedded URLs suggest a campaign focused on driving traffic to potentially malicious or ad-filled websites.

Heuristics 3

  • 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.
  • 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://homefromhomebandbwinchester.com/uploads/1/3/0/6/130620251/130620251.html#poldark+season+5+episode+3+recap
    • http://bethdixart.com/uploads/1/3/0/7/130776572/gofuvezadigudujuvufi.pdf
    • http://vancouverfreediving.net/uploads/1/3/0/4/130475964/kudetafovupepit.pdf
    • http://makeupmaryb.com/uploads/1/3/1/4/131406211/60ada2674f2.pdf
    • http://bli-testing.com/uploads/1/3/0/8/130814232/19109498accbf1.pdf
    • http://repulsebaygardens.com/uploads/1/3/0/9/130968949/2939643.pdf
    • http://theatrebrum.com/uploads/1/3/1/3/131398036/zuwamezepupo-xibivevuwida-firijev.pdf
    • http://kforkaveh.no/uploads/1/3/0/6/130621475/gonojo-pegug-denoxuma-pukajizak.pdf
    • http://paintinghopefoundation.com/uploads/1/3/0/2/130288431/9310461.pdf
    • http://robertsoncountycare.org/uploads/1/3/0/4/130488220/bubexulawego.pdf
    • http://theprojectexec.net/uploads/1/3/0/9/130969596/lopepabotupesupu.pdf
    • http://tierracristal.net/uploads/1/3/0/8/130814508/ruvibebuj-pegekiwelupiju-depesotuvutete-felip.pdf
    • http://selectedecohotels.com/uploads/1/3/0/6/130620750/ce96a16.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_off00008689.bin
79ffaf8576a328dbc805fe73b7b462e0c54f37ae313bc88dba3a2edd4c71d9e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8689 7808 bytes

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