Malicious PDF — malware analysis report

Static analysis result for SHA-256 4560a405dc30f799…

MALICIOUS

PDF

40.9 KB Created: 2020-06-20 15:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6230f2430509451e21a7e1b737d1f05a SHA-1: a4621e8e8088b59946046fd47459762b922356f4 SHA-256: 4560a405dc30f799274967a60117efa33397a945ac0fd55eb713ff1a7e1d7ec1
62 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a common tactic for SEO spam or phishing campaigns. The document body mentions 'Aqua stretch exercises', which appears to be a lure to direct users to the linked content. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a mass of external links, suggesting a malicious intent to drive traffic to potentially harmful sites.

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://schmidtenterprises.net/uploads/1/3/1/4/131406077/131406077.html#aqua+stretch+exercises
    • http://tesiseinvestigaciones.com/uploads/1/3/1/4/131436991/60620addd06496.pdf
    • http://lutonmusicexpo.com/uploads/1/3/1/1/131164319/tuxesagusutadi.pdf
    • http://traditionalscouts.org/uploads/1/3/1/6/131637190/tevaliviwino-jekov-netigi-wifame.pdf
    • http://beyeglobal.com/uploads/1/3/0/8/130874364/xosotaxoxapin.pdf
    • http://poettree.org/uploads/1/3/0/4/130479350/9801769.pdf
    • http://ns1.weiserschools.org/uploads/1/3/0/6/130620807/xufuzejadokot-wowanimu.pdf
    • http://doubleheartsoapcompany.com/uploads/1/3/0/3/130312952/2612be8f6ac7.pdf
    • http://joncloudinc.com/uploads/1/3/0/3/130323405/6ca6ad.pdf
    • http://routestoknowledge.com/uploads/1/3/1/0/131070792/pakesegukakan.pdf
    • http://parkerdancecompany.net/uploads/1/3/0/7/130739287/d85d856d83b31a9.pdf
    • http://petergonzalez.me/uploads/1/3/0/5/130588644/178ac5e36752f85.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006394.bin
80643b1fd94275f0c6af85fafad256a8dc935cb1ffa2b4cd1a429ba63d8ae5a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6394 4704 bytes
font_01_sfnt_off000073aa.bin
4673ba9add36bb0ba3aa93b7db74bb2a7a2224d41e853b85e2db30911716a303		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73AA 10440 bytes

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