Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a517ff3c09c859…

MALICIOUS

PDF

41.0 KB Authoring application: Pdftk
MD5: 8ad3f4c127e86b9562d0cfdb0846c9b4 SHA-1: 3113167d906ade26f21d7f30b34313a54cce47da SHA-256: e7a517ff3c09c859cc753c740d6e6ddebe91e084b43242464e12b870fe752270
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent. The primary purpose appears to be SEO manipulation or redirecting users to potentially malicious content through a link farm. No scripts were extracted from this sample.

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://littlegreentruck.biz/uploads/1/3/0/2/130271004/5074589.pdf
    • https://doraramobukapen.weebly.com/uploads/1/3/0/5/130546040/besujolasuz-ledipos-nuwagasi.pdf
    • http://robinsnestfunraiser.org/uploads/1/3/0/4/130483096/dobejofevaxed.pdf
    • https://zovugosasija.weebly.com/uploads/1/3/0/2/130289565/5739202.pdf
    • http://finlabasia.com/uploads/2020/01/27/5155768.pdf
    • http://neurodesignlab.com/uploads/1/3/0/4/130483653/367d2a868ac.pdf
    • http://tinegos.trcturbo.ru/uploads/2020/01/28/xuxibafumi.pdf
    • http://mudijegu.sietefjeans.com/uploads/2020/01/27/8067413.pdf
    • http://zosinude.1-gc.info/uploads/2020/01/28/34a10a9acb1d79.pdf
    • http://beajitis.net/uploads/1/3/0/6/130620791/9611978.pdf
    • http://sporttihetki.net/uploads/1/3/0/5/130546937/miketomimo-pamukazakese-loluwegik-lawenemategupa.pdf
    • http://mijblaxby.com/uploads/1/3/0/3/130313370/c43395267.pdf
    • http://workst.icu/uploads/2020/01/29/6244075.pdf
    • http://sunsetsailkeywest.net/uploads/1/3/0/4/130483653/26ba69fa12973.pdf
    • http://mymissblue.com/uploads/1/3/0/3/130323124/130323124.html#linking+words+exercises+with+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013cc.bin
6307446467a3c8ac8a5f4491786a713f89ee5ed91654bc5360a7058d5ce2b0bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CC 8256 bytes

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