Malicious PDF — malware analysis report

Static analysis result for SHA-256 907a739542ce13d6…

MALICIOUS

PDF

52.9 KB Created: 2020-06-25 22:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5efdd460605bdab4cf6700a459baa5c2 SHA-1: c2baf71b1f0ce6c7b39abfab9e7fd53c899063a6 SHA-256: 907a739542ce13d6bfab380bb4efdd7a28dbca6a82da4ea14b469fd1b936f615
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or SEO manipulation tactic. The document body itself is heavily obfuscated but contains one of the identified URLs. No scripts were extracted from this sample, limiting the ability to determine further malicious intent beyond link distribution.

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://skinandbodybysarah.com/uploads/1/3/1/3/131383384/131383384.html#aea+pk-12+manual
    • http://wailelepress.com/uploads/1/3/0/5/130542780/vetovakuwoba-kozuminisogam.pdf
    • http://coffmannursing.com/uploads/1/3/0/6/130603913/1907911.pdf
    • http://levelsofminimalism.com/uploads/1/3/0/5/130550949/71cdc218d75.pdf
    • http://42h.undesirable.us/uploads/1/3/0/5/130545254/6309003.pdf
    • http://constructionsmetalliques.net/uploads/1/3/1/4/131408024/witijafokuruzekama.pdf
    • http://sabahraphaelreed.com/uploads/1/3/0/8/130874108/lumodifunisaxaxoxafi.pdf
    • http://mta-sts.mx.brrclub.com/uploads/1/3/0/8/130813401/birusefotewafida.pdf
    • http://shonee.shop/uploads/1/3/0/7/130776661/21df25.pdf
    • https://mudobemazi.files.wordpress.com/2020/06/10554338320.pdf
    • https://fiwidowa.files.wordpress.com/2020/06/10925225983.pdf
    • https://laxokabe513272239.files.wordpress.com/2020/06/fenifenujobonemi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c7c.bin
6bfc9af4a4ee40a64a1ccd320853479486a17d4d9e43f1189069b8431f638694		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7C 4604 bytes
font_01_sfnt_off00008c0b.bin
a227824af7321b530fb4ba99c8f38dc63483c02fead25c863f729cf2fa69fda1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0B 11112 bytes
font_02_sfnt_off0000b201.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB201 16204 bytes

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