Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef353c17efb164e…

MALICIOUS

PDF

32.9 KB Authoring application: PDF Studio
MD5: e15c2936d314289a67fa9d591b4f7c13 SHA-1: a15b75c74da3f5b50629df657398f34246ada53c SHA-256: 7ef353c17efb164e3f607117f02643e2c0fef6416172cc6a974e5a9f2c5e4cf2
152 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, specifically as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are the primary indicators of compromise, suggesting a phishing or malware distribution campaign. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mabit.getfitwear.ru/uploads/2020/01/28/e326d8da987.pdf
    • https://pavowukilakel.weebly.com/uploads/1/3/0/5/130539016/6776585.pdf
    • http://xal.sayt-nedorogo.ru/uploads/2020/01/28/dcae4.pdf
    • https://rugoxewuf.weebly.com/uploads/1/3/0/5/130551041/japupimo.pdf
    • http://bubefe.sunilchoudhary.site/uploads/2020/01/27/8f01f8330453.pdf
    • http://jupajaba.la-mebel-modern.ru/uploads/2020/01/28/5650348.pdf
    • http://tiripexagi.masterpechi.ru/uploads/2020/01/27/wufavero.pdf
    • http://xipane.alfasl.info/uploads/2020/01/28/1c810336.pdf
    • http://cummingtreeservice.com/uploads/1/3/0/5/130590154/gexogo-rovuvitetesojan-majuxotalomuxaz.pdf
    • http://vajovapi.kelta.ru/uploads/2020/01/28/tapagepulexotizefiro.pdf
    • http://greenwolfverticalfarm.com/uploads/1/3/0/6/130604805/130604805.html#sesli+risale+i+nur+k%C3%BClliyat%C4%B1+indir

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001401.bin
419e64c496e0b86f2d49cc432f006d0f0920c9d92c0fa146e677f9c51a8af952		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1401 8864 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.