Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7d17c24dfa4708…

MALICIOUS

PDF

35.1 KB Created: 2020-04-12 08:33:03 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 049dfb90fbfcd9fde678e0c7b32d40e1 SHA-1: 5daae70a04273097e8673652cb98d8484cc852a9 SHA-256: ba7d17c24dfa4708983faf293078d6c06ff3d1856837d395821715558a4e650a
70 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a mechanism to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this pattern, suggesting the document's primary purpose is to redirect users to potentially harmful resources.

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://helprs.ca/uploads/1/3/0/8/130814390/130814390.html#assassin%27s+creed+colouring+book
    • http://blog.cat-fish.net/uploads/1/3/0/4/130490977/jenozok.pdf
    • http://ipaintpretty.com/uploads/1/3/1/6/131606490/3424376.pdf
    • http://lukeventers.com/uploads/1/3/0/6/130605519/34fe0cd2.pdf
    • http://veteransforlife.net/uploads/1/3/0/6/130620628/rojuwoxigo_gizumukeba.pdf
    • http://gweniveremoon.com/uploads/1/3/1/4/131405976/7661126.pdf
    • http://beyondbarsanimalrescue.org/uploads/1/3/1/3/131384070/poloxubaxo.pdf
    • http://terrain.website/uploads/1/3/0/6/130621614/6852936.pdf
    • http://bydesigns.net/uploads/1/3/0/5/130588803/4183696.pdf
    • http://travelseo.pl/uploads/1/3/0/4/130483422/6949242.pdf
    • http://next-edu.net/uploads/1/3/0/2/130288986/dofabavedu_wikafazolit_muxijaguxamig_wojuzax.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_off0000633d.bin
0a668e8ee4b2f822b488c3466251126a749222211061cbae460f950652a80742		 pdf-font-stream PDF embedded font (sfnt) at offset 0x633D 7488 bytes

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