Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3414eff56fa3c11…

MALICIOUS

PDF

39.3 KB Authoring application: OpenOffice Draw
MD5: 4de482f9288ed3f568dbabe38c83ea73 SHA-1: 479f817b1c661434fe920ff52384a81e47ea8071 SHA-256: d3414eff56fa3c112746af5a9ff5bc1baa865a8a378e6f84e06d8e0dd3b42c95
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to other PDF files hosted on various domains. This technique is commonly used to create SEO link farms or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious nature of this file. The embedded URLs are the primary indicators of compromise.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://staffordchamberofcommerce.com/uploads/1/3/0/5/130590257/1796345.pdf
    • http://sbtyouth.com/uploads/1/3/0/6/130639889/368c1.pdf
    • http://mysticalrockny.com/uploads/1/3/0/6/130620614/6681722.pdf
    • http://mountainpinestreetreachprogram.com/uploads/1/3/0/5/130589275/fezugudopuganur-kugidixixom-vezuju-karixiv.pdf
    • http://mosiacpreschool.com/uploads/1/3/0/5/130589094/rilezikuwop.pdf
    • http://xafato.audiostart31.icu/uploads/2020/01/27/xerolarupatiporinipa.pdf
    • http://nicollaslittleshop.com/uploads/1/3/0/5/130540182/guwemagatusuwo_kixupuxafifipeg.pdf
    • http://zezowozivo.colorsun.ru/uploads/2020/01/28/e904eb14f20c87.pdf
    • http://velobristol.com/uploads/1/3/0/5/130543766/mexetiperulogokimebi.pdf
    • http://neatlysheltered.com/uploads/1/3/0/5/130551206/6425176.pdf
    • http://appraisejewelry.net/uploads/1/3/0/6/130620882/3080182.pdf
    • http://ddiamondco.com/uploads/1/3/0/4/130483844/130483844.html#obs+video+capture+device+not+showing

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001307.bin
ba031e31dc97fdb9e577abbb70f57808ea480e85c0428452911c4c0b9a8a8fc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1307 8280 bytes

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