Malicious PDF — malware analysis report

Static analysis result for SHA-256 a501a5882d57216b…

MALICIOUS

PDF

30.7 KB Created: 2020-06-13 14:27:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7efd1a85bc53fa50c549bc8a2f836dd9 SHA-1: ff58821fb01039549d27ad4da596cfd6301532e7 SHA-256: a501a5882d57216bda5d17b83c2f0303bc5f1d74b9756d3bbfc931903e143278
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or redirection scheme. The document body contains text related to literature question banks, which is likely a lure to disguise the malicious intent. The primary attack pattern involves directing users to these external resources, potentially for malicious purposes such as malware distribution or phishing.

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://parkavenueeventscenter.com/uploads/1/3/0/2/130274269/130274269.html#edebiyat+soru+bankas%25C4%25B1+limit
    • http://taojinyingkaihushouxuanhailifang.br3h.com/uploads/1/3/1/4/131483112/d7eb23.pdf
    • http://janewaggy.com/uploads/1/3/0/7/130776255/a43b230673b2.pdf
    • http://windows-defender.com/uploads/1/3/0/2/130272877/2758008.pdf
    • https://banibejazona.files.wordpress.com/2020/06/xojesoxiguxege.pdf
    • https://japofab.files.wordpress.com/2020/06/54470449568.pdf
    • https://nofosepeji.files.wordpress.com/2020/06/20509857473.pdf
    • https://tomaper.files.wordpress.com/2020/06/47057232268.pdf
    • https://zofutemuzup.files.wordpress.com/2020/06/9420220629.pdf
    • https://relexuxiwa.files.wordpress.com/2020/06/39798327551.pdf
    • https://fogadogi.files.wordpress.com/2020/06/balorelagawonukuso.pdf
    • https://juzifak.files.wordpress.com/2020/06/28348313056.pdf
    • https://zobekak.files.wordpress.com/2020/06/tazowekofenirefibuwu.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_off00004c56.bin
a09c50f4f56acc19c8290988128e4a25099e0b5ed452ad02a639bf02bb57c337		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C56 10116 bytes

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