Malicious PDF — malware analysis report

Static analysis result for SHA-256 227d445f256974fc…

MALICIOUS

PDF

34.1 KB Authoring application: OpenOffice Draw
MD5: 62e9b48e030a1c7043c3d24805c0074e SHA-1: 818923cd586e7f89b2758898733a7b3872d26b8b SHA-256: 227d445f256974fc5f45e4a9f5cc70f071f031a8e8a74f4487403d7c71fed568
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning or phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The primary URL identified is http://portaldogessosp.site/uploads/2020/01/28/f4af87041a8.pdf.

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://portaldogessosp.site/uploads/2020/01/28/f4af87041a8.pdf
    • http://93395415.nhd.weebly.com/uploads/1/3/0/4/130483739/6653158.pdf
    • http://rootedsunshinetraining.com/uploads/1/3/0/4/130476684/03f5e9bd0e0d39.pdf
    • http://novovivo.org/uploads/1/3/0/6/130604244/6341041.pdf
    • http://audiostart11.icu/uploads/2020/01/28/dusasu.pdf
    • http://niceandveggie.com/uploads/1/3/0/7/130776642/fca427be88f.pdf
    • http://beccakelley.com/uploads/1/3/0/5/130589101/90e491ccb2322.pdf
    • http://jeffersongathering.com/uploads/1/3/0/5/130551559/4780375.pdf
    • http://migrantliteraturejournal.com/uploads/1/3/0/7/130776175/saxuvibosipevu.pdf
    • http://rockallyourrelationships.com/uploads/1/3/0/6/130620233/welawajuwevuba-gazerezawalozaf-fadapox-kironi.pdf
    • http://djournalebydn.com/uploads/1/3/0/3/130379638/b620584fb4997.pdf
    • http://miamiautodeal.com/uploads/1/3/0/3/130380002/povabe.pdf
    • http://bslfourthward.com/uploads/1/3/0/6/130621214/lovesik.pdf
    • http://envirenu.biz/uploads/1/3/0/2/130272344/zavulis.pdf
    • http://mobilemechanicmemphistx.com/uploads/1/3/0/6/130622000/efe71080220d07.pdf
    • http://zambiasafarihunting.com/uploads/1/3/0/7/130776291/130776291.html#how+do+you+calculate+cumulative+frequency+in+statistics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ba6.bin
69ac82abd4894d02775ad27dc5659ecdbb4ab5fcdc3e25a4473d6ce07f805751		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA6 7448 bytes

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