Malicious PDF — malware analysis report

Static analysis result for SHA-256 413a09c240afe698…

MALICIOUS

PDF

39.2 KB Created: 2020-03-12 09:46:38 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7cb373081d1059dc3cdda199d0cf10c1 SHA-1: 8dfa3319ba84d55371faec350447e2040011b9ec SHA-256: 413a09c240afe698bcc27bec9a9c8f98dbf7cd78d071da4c8a226b6754600c03
62 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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a method to distribute malicious content across multiple sites. The embedded document body text is heavily obfuscated and appears to be metadata rather than user-facing content. No scripts were extracted from this sample. The primary attack pattern involves directing users to external resources via these numerous links.

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://blacksmithspdf.com/uploads/1/3/0/6/130640231/130640231.html#schindler%27s+list+violin+sheet+music+scribd
    • http://webdisk.behealthyburleson.com/uploads/1/3/0/7/130738963/790110.pdf
    • http://www.alicevonlindenau.com/uploads/1/3/0/6/130639216/vovega_kivumukanawozaw_gikegopamizar_pusisipuganal.pdf
    • http://thisisdomenick.com/uploads/1/3/0/6/130621167/8399795.pdf
    • http://thefarmatcentralvillage.net/uploads/1/3/0/2/130292110/0b754827.pdf
    • http://www.redeyejedi420.com/uploads/1/3/0/5/130588654/dfb88bb.pdf
    • http://mta-sts.mail.troyenekvist.com/uploads/1/3/0/6/130640047/lokekisepatetaj.pdf
    • http://sacredfeminineuprising.com/uploads/1/3/0/6/130639656/591721.pdf
    • http://www.sassecologist.com/uploads/1/3/0/2/130287394/xusisax.pdf
    • http://aancarpenter.net/uploads/1/3/0/5/130588497/sofobejub.pdf
    • http://cpanel.luketti.com/uploads/1/3/0/6/130620479/retutemituzure.pdf
    • http://livingonvideo.net/uploads/1/3/0/6/130605216/3220095.pdf
    • http://buddiesgoods.com/uploads/1/3/0/2/130291579/ddce15.pdf
    • http://churchstrettontaxi.com/uploads/1/3/0/6/130604487/6712378.pdf
    • http://banhangthue.org/uploads/1/3/0/5/130544541/rukediwaxi_viludadewol_lufasuwejevagig_fononavetarelo.pdf
    • http://www.knowledgeisempowering.org/uploads/1/3/0/5/130551967/a04fd.pdf
    • http://obyhousetellers.com/uploads/1/3/0/6/130639491/7579601.pdf
    • http://moorestrom.com/uploads/1/3/0/2/130288361/xebise.pdf
    • http://fountainoflifesupportservices.org/uploads/1/3/0/8/130814408/37d9e43942ff405.pdf
    • http://musescore.com/user/22229/scores/60106Just
    • 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_off00006c57.bin
645ec2012f566a567a69f14c719a5f04784c5dba51d2253aa933586199dfbe14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C57 9272 bytes

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