Malicious PDF — malware analysis report

Static analysis result for SHA-256 e65d8900bb7fa5c7…

MALICIOUS

PDF

40.6 KB Authoring application: OpenOffice.org
MD5: 5d77df050a7e409514f22974ae13710b SHA-1: e3d4507e008c9d374a18e278e40b5e31ebfa1120 SHA-256: e65d8900bb7fa5c7b6a66d150ce8fc43d1f9eab758c5576d64725bad9687e50c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The document body, though partially corrupted, contains text related to an apology letter and also includes many of the same URLs found in the heuristics, suggesting a phishing or SEO manipulation attempt.

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://thedragonridersofarvain.com/uploads/1/3/0/6/130604201/7615040.pdf
    • http://dogbreedgifts.studio/uploads/1/3/0/6/130621951/fesawalirukuruj.pdf
    • http://petrucciaviation.weebly.com/uploads/1/3/0/4/130483631/jilutajiwatolav.pdf
    • http://xoruguga.mammoth24.com/uploads/2020/01/27/8610140.pdf
    • http://classicbimmers.nl/uploads/1/3/0/5/130551294/9319820.pdf
    • http://ultrakinofilms.online/uploads/2020/01/27/1147773.pdf
    • http://vsekrossy.ru/uploads/2020/01/27/gusizu.pdf
    • http://pieutopiaproductions.weebly.com/uploads/1/3/0/3/130323160/jagupafug_rijogusawu_ragur_zanezef.pdf
    • http://botasmoto.online/uploads/2020/01/28/10133ffdeb.pdf
    • http://alljapaneseclassic.com/uploads/1/3/0/6/130621294/kegikeku.pdf
    • https://wokezude.weebly.com/uploads/1/3/0/2/130289225/jomiruwabik_xajijejatufiku.pdf
    • http://zufemulezu.greatthings.icu/uploads/2020/01/28/juzotazadobemu.pdf
    • https://rolipilimi.weebly.com/uploads/1/3/0/5/130588997/volaru.pdf
    • http://stjohnvianneymorisset.com/uploads/1/3/0/5/130589444/130589444.html#apology+formal+letter+to+customer

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000136f.bin
d45b9420cdda6962d6d7aaf3f22dba89478f415cbe2e0518298b5bc29d96def6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x136F 8012 bytes

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